Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Chicago, IL

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669
FNUS53 KLOT 180931
FWFLOT

Fire Weather Planning Forecast For Northern IL and Northwest IN
National Weather Service Chicago/Romeoville IL
431 AM CDT Tue Aug 18 2026

.DISCUSSION...

A decaying thunderstorm complex over the Missouri River early this
morning is expected to gradually decay while crossing Iowa and
northern Illinois. Plenty of mid-level clouds and possibly a few
showers are expected late morning through mid-afternoon.

A cold front will bring isolated thunderstorms to areas north of
I-80, and especially north of I-90, sometime late afternoon
through mid evening. Torrential rainfall and a few instances of
damaging wind are possible with these storms. The cold front will
stall over central Illinois on Wednesday and may lead to scattered
showers and a few thunderstorms south of U.S. 24 during the
afternoon.

Shower and thunderstorm chances will return Friday night and
Saturday with a pair of mid-level troughs crossing the western
Great Lakes. Temperatures are expected to remain near or slightly
below normal for mid to late August with daytime highs in the mid
70s to around 80 through the weekend.

ILZ014-182145-
Cook-
Including the cities of Chicago, Schaumburg, Evanston, Oak Lawn,
Lemont, Orland Park, and Park Forest
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           50           10
Max Temp (24HR Trend) 80 (+1)                   77
Min RH % (24HR Trend) 59 (+4)                   67
Min Temp (24HR Trend)              65 (+2)                   60
Max RH % (24HR Trend)              98 (+8)                   90
20FT Wind AM (MPH)    SW 8-10                   Lgt/Var
20FT Wind PM (MPH)    SW 8-10      SW 5-6       NE 3-5       Lgt/Var
Peak Wind Gusts (MPH) 21
Precip Amount (IN)    0.05-0.10    0.25-0.50    0.00         0.00
11 AM Mixing Hgt (FT) 2800                      2900
Max Mixing Hgt (FT)   4000                      4400
Transport Wnd (MPH)   W 17                      NE  8
Vent Rate (MPH-FT)    68000                     35200
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
northeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 60s. East winds
around 5 mph in the evening, becoming light.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s. North winds
around 5 mph in the evening, becoming light.
.MONDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph, becoming east in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds around 5 mph.

$$

ILZ006-182145-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        pcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           60           10
Max Temp (24HR Trend) 80 (+1)                   76
Min RH % (24HR Trend) 63 (+8)                   66
Min Temp (24HR Trend)              62 (+1)                   57
Max RH % (24HR Trend)              98 (+7)                   96
20FT Wind AM (MPH)    SW 9-11                   Lgt/Var
20FT Wind PM (MPH)    W 9-11       W 5-6        NE 3-5       Lgt/Var
Peak Wind Gusts (MPH) 20
Precip Amount (IN)    0.25-0.50    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2600                      2800
Max Mixing Hgt (FT)   3600                      4300
Transport Wnd (MPH)   W 19                      NE  8
Vent Rate (MPH-FT)    72000                     34400
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
southeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 60s. East
winds around 5 mph, becoming southwest after midnight.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. Northwest winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph, becoming southeast in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light
winds.

$$

INZ001-182145-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     30           50           10
Max Temp (24HR Trend) 80 (+3)                   75
Min RH % (24HR Trend) 62 (+4)                   79
Min Temp (24HR Trend)              66 (+6)                   58
Max RH % (24HR Trend)              97 (-1)                   96
20FT Wind AM (MPH)    SW 6-9                    Lgt/Var
20FT Wind PM (MPH)    SW 6-9       SW 5-6       N 3-5        Lgt/Var
Peak Wind Gusts (MPH) 18
Precip Amount (IN)    0.00         0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2800                      2000
Max Mixing Hgt (FT)   4000                      3900
Transport Wnd (MPH)   SW 14                     N  8
Vent Rate (MPH-FT)    60000                     31200
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the mid 70s. Light winds, becoming
northeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the lower 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.SUNDAY...Mostly sunny. Highs in the mid 70s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph, becoming north in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Light winds.

$$

INZ002-182145-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     30           50           10
Max Temp (24HR Trend) 80 (+3)                   75
Min RH % (24HR Trend) 62 (+1)                   78
Min Temp (24HR Trend)              66 (+6)                   57
Max RH % (24HR Trend)              97 (0)                    96
20FT Wind AM (MPH)    SW 6-8                    Lgt/Var
20FT Wind PM (MPH)    SW 6-8       SW 5-6       N 4-6        Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN)    0.00         0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 3000                      2000
Max Mixing Hgt (FT)   4100                      3500
Transport Wnd (MPH)   SW 14                     N  8
Vent Rate (MPH-FT)    61500                     28000
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the mid 70s. Light winds, becoming
north around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.FRIDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the lower 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the mid 70s. West winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 60. Light winds,
becoming northwest around 5 mph after midnight.
.SUNDAY...Mostly sunny. Highs in the mid 70s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.

$$

ILZ013-182145-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           60           10
Max Temp (24HR Trend) 80 (-1)                   77
Min RH % (24HR Trend) 62 (+13)                  67
Min Temp (24HR Trend)              64 (+2)                   58
Max RH % (24HR Trend)              97 (+6)                   93
20FT Wind AM (MPH)    SW 8-10                   Lgt/Var
20FT Wind PM (MPH)    SW 8-10      SW 5-6       Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 20
Precip Amount (IN)    0.10-0.25    0.25-0.50    0.00         0.00
11 AM Mixing Hgt (FT) 2600                      2900
Max Mixing Hgt (FT)   3900                      4500
Transport Wnd (MPH)   W 18                      N  6
Vent Rate (MPH-FT)    70200                     31500
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
northeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 60s. North
winds around 5 mph in the evening, becoming light.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows around 60. North winds around
5 mph in the evening, becoming light.
.MONDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. South winds
around 5 mph.

$$

ILZ012-182145-
Kane-
Including the cities of Aurora and Elgin
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        mcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           50           10
Max Temp (24HR Trend) 79 (-1)                   77
Min RH % (24HR Trend) 69 (+21)                  68
Min Temp (24HR Trend)              63 (+2)                   57
Max RH % (24HR Trend)              97 (+3)                   96
20FT Wind AM (MPH)    SW 8-10                   Lgt/Var
20FT Wind PM (MPH)    SW 8-10      W 5-6        Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 20
Precip Amount (IN)    0.10-0.25    0.25-0.50    0.00         0.00
11 AM Mixing Hgt (FT) 2400                      2300
Max Mixing Hgt (FT)   3500                      4000
Transport Wnd (MPH)   W 18                      N  8
Vent Rate (MPH-FT)    63000                     32000
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
northeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. North winds
around 5 mph in the evening, becoming light.
.MONDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. South winds
around 5 mph.

$$

ILZ005-182145-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        pcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           60           10
Max Temp (24HR Trend) 79 (-1)                   77
Min RH % (24HR Trend) 68 (+22)                  64
Min Temp (24HR Trend)              61 (+1)                   56
Max RH % (24HR Trend)              97 (+4)                   96
20FT Wind AM (MPH)    SW 8-11                   Lgt/Var
20FT Wind PM (MPH)    W 8-11       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 20
Precip Amount (IN)    0.25-0.50    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2200                      2500
Max Mixing Hgt (FT)   3300                      4700
Transport Wnd (MPH)   W 19                      N  8
Vent Rate (MPH-FT)    66000                     37600
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
southeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. A chance of showers in the afternoon.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. Light winds,
becoming southwest around 5 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Light winds.

$$

ILZ004-182145-
Boone-
Including the city of Belvidere
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        pcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           50           10
Max Temp (24HR Trend) 79 (0)                    77
Min RH % (24HR Trend) 68 (+18)                  62
Min Temp (24HR Trend)              61 (+1)                   55
Max RH % (24HR Trend)              97 (+2)                   96
20FT Wind AM (MPH)    SW 8-11                   Lgt/Var
20FT Wind PM (MPH)    W 8-11       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 20
Precip Amount (IN)    0.25-0.50    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2200                      2100
Max Mixing Hgt (FT)   3300                      5000
Transport Wnd (MPH)   W 18                      N  8
Vent Rate (MPH-FT)    59400                     40000
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.FRIDAY...Mostly sunny. A chance of showers in the afternoon.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening. Lows in the lower 60s. Southwest
winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph in the evening, becoming light.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Light winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.

$$

ILZ011-182145-
De Kalb-
Including the cities of DeKalb and Sycamore
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        mcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           50           10
Max Temp (24HR Trend) 79 (0)                    77
Min RH % (24HR Trend) 69 (+17)                  65
Min Temp (24HR Trend)              63 (+3)                   56
Max RH % (24HR Trend)              98 (+4)                   96
20FT Wind AM (MPH)    SW 8-10                   Lgt/Var
20FT Wind PM (MPH)    SW 8-10      Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 20
Precip Amount (IN)    0.10-0.25    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2400                      2000
Max Mixing Hgt (FT)   3300                      4100
Transport Wnd (MPH)   W 19                      N  8
Vent Rate (MPH-FT)    66000                     32800
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
northeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...A chance of thunderstorms in the evening. Partly
cloudy with a chance of showers. Lows in the lower 60s. Southwest
winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
around 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Northwest
winds around 5 mph in the evening, becoming light.
.MONDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 60. South winds around
5 mph.

$$

ILZ003-182145-
Winnebago-
Including the city of Rockford
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        pcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           50
Max Temp (24HR Trend) 79 (-2)                   78
Min RH % (24HR Trend) 66 (+22)                  59
Min Temp (24HR Trend)              61 (+1)                   54
Max RH % (24HR Trend)              97 (+3)                   98
20FT Wind AM (MPH)    SW 8-11                   Lgt/Var
20FT Wind PM (MPH)    SW 8-11      Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 19
Precip Amount (IN)    0.25-0.50    0.05-0.10    0.00         0.00
11 AM Mixing Hgt (FT) 2300                      2000
Max Mixing Hgt (FT)   3300                      4900
Transport Wnd (MPH)   W 19                      NW  8
Vent Rate (MPH-FT)    66000                     39200
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
southeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds, becoming south around 5 mph after midnight.
.FRIDAY...Mostly sunny. A chance of showers in the afternoon.
Highs in the upper 70s. Southwest winds 5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening. Lows in the lower 60s. Southwest
winds around 5 mph.
.SATURDAY...Partly sunny in the morning then clearing. Highs in
the upper 70s. Northwest winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 50s. Northwest
winds around 5 mph in the evening, becoming light.
.SUNDAY...Mostly sunny. Highs in the mid 70s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Light winds.
.MONDAY...Partly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.

$$

ILZ008-182145-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        pcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           50
Max Temp (24HR Trend) 79 (-1)                   78
Min RH % (24HR Trend) 67 (+20)                  63
Min Temp (24HR Trend)              62 (+2)                   55
Max RH % (24HR Trend)              97 (+1)                   98
20FT Wind AM (MPH)    SW 8-10                   Lgt/Var
20FT Wind PM (MPH)    SW 8-10      Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 19
Precip Amount (IN)    0.10-0.25    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2200                      1800
Max Mixing Hgt (FT)   3100                      4600
Transport Wnd (MPH)   SW 18                     NW  8
Vent Rate (MPH-FT)    55800                     36800
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Partly cloudy. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening. Lows in the lower 60s. Southwest
winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph in the evening, becoming light.
.SUNDAY...Mostly sunny. Highs in the mid 70s. North winds around
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Light winds.

$$

ILZ010-182145-
Lee-
Including the city of Dixon
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        pcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     50           50           10
Max Temp (24HR Trend) 79 (-1)                   78
Min RH % (24HR Trend) 70 (+22)                  65
Min Temp (24HR Trend)              63 (+3)                   57
Max RH % (24HR Trend)              98 (+2)                   99
20FT Wind AM (MPH)    SW 8-10                   Lgt/Var
20FT Wind PM (MPH)    SW 8-10      Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 19
Precip Amount (IN)    0.10-0.25    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2300                      1800
Max Mixing Hgt (FT)   2900                      4100
Transport Wnd (MPH)   W 17                      N  8
Vent Rate (MPH-FT)    49300                     32800
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...A chance of thunderstorms in the evening. Partly
cloudy with a chance of showers. Lows in the lower 60s. Southwest
winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds, becoming southeast around 5 mph after midnight.
.MONDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds around 5 mph.

$$

ILZ019-182145-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        pcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     40           50           10
Max Temp (24HR Trend) 79 (-2)                   78
Min RH % (24HR Trend) 68 (+16)                  67
Min Temp (24HR Trend)              65 (+4)                   58
Max RH % (24HR Trend)              97 (+1)                   95
20FT Wind AM (MPH)    SW 7-9                    Lgt/Var
20FT Wind PM (MPH)    SW 7-9       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 18
Precip Amount (IN)    0.01-0.05    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2500                      1900
Max Mixing Hgt (FT)   3400                      4000
Transport Wnd (MPH)   W 16                      N  6
Vent Rate (MPH-FT)    54400                     28000
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Northwest
winds around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows around 60. Light winds.
.MONDAY...Mostly sunny. Highs in the upper 70s. South winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds around 5 mph.

$$

ILZ020-182145-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           mcldy        mcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     40           50           10
Max Temp (24HR Trend) 80 (-1)                   78
Min RH % (24HR Trend) 67 (+21)                  68
Min Temp (24HR Trend)              64 (+3)                   58
Max RH % (24HR Trend)              98 (+1)                   98
20FT Wind AM (MPH)    SW 7-10                   Lgt/Var
20FT Wind PM (MPH)    SW 7-10      Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 19
Precip Amount (IN)    0.05-0.10    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2500                      2100
Max Mixing Hgt (FT)   3500                      3900
Transport Wnd (MPH)   W 17                      N  6
Vent Rate (MPH-FT)    59500                     27300
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
northeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. Northwest winds 5 to
10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 60. Northwest winds
around 5 mph.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Northwest
winds around 5 mph in the evening, becoming light.
.MONDAY...Mostly sunny. Highs in the upper 70s. South winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. South winds
around 5 mph.

$$

ILZ021-182145-
Grundy-
Including the cities of Morris, Coal City, and Minooka
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     30           50           10
Max Temp (24HR Trend) 80 (-1)                   78
Min RH % (24HR Trend) 68 (+15)                  71
Min Temp (24HR Trend)              66 (+5)                   59
Max RH % (24HR Trend)              98 (+1)                   98
20FT Wind AM (MPH)    SW 6-9                    Lgt/Var
20FT Wind PM (MPH)    SW 6-9       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 17
Precip Amount (IN)    0.01-0.05    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2600                      1900
Max Mixing Hgt (FT)   3600                      3900
Transport Wnd (MPH)   W 16                      N  6
Vent Rate (MPH-FT)    57600                     27300
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 60s. Light winds, becoming southwest around 5 mph after
midnight.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 60s. Light
winds.
.SUNDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows around 60. Light winds.
.MONDAY...Mostly sunny. Highs in the upper 70s. South winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light
winds.

$$

ILZ022-182145-
Will-
Including the cities of Joliet, Bolingbrook, and Wilmington
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        mclear
Precip Type           tstms        tstms        None         None
Chance Precip (%)     40           50           10
Max Temp (24HR Trend) 79 (-1)                   77
Min RH % (24HR Trend) 66 (+14)                  73
Min Temp (24HR Trend)              65 (+4)                   59
Max RH % (24HR Trend)              98 (0)                    98
20FT Wind AM (MPH)    SW 7-9                    Lgt/Var
20FT Wind PM (MPH)    SW 7-9       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 19
Precip Amount (IN)    0.01-0.05    0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2700                      2100
Max Mixing Hgt (FT)   3900                      4000
Transport Wnd (MPH)   W 16                      N  6
Vent Rate (MPH-FT)    62400                     28000
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
northeast around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 60s. Southwest winds around 5 mph.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 60. Northwest winds
around 5 mph in the evening, becoming light.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. Southwest winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds around 5 mph.

$$

ILZ032-182145-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        pcldy
Precip Type           showers      tstms        showers      None
Chance Precip (%)     20           50           20           10
Max Temp (24HR Trend) 80 (0)                    77
Min RH % (24HR Trend) 66 (+6)                   77
Min Temp (24HR Trend)              66 (+5)                   59
Max RH % (24HR Trend)              98 (0)                    100
20FT Wind AM (MPH)    SW 6-8                    Lgt/Var
20FT Wind PM (MPH)    SW 6-8       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN)    0.00         0.10-0.25    0.01-0.05    0.00
11 AM Mixing Hgt (FT) 2600                      1900
Max Mixing Hgt (FT)   3600                      3800
Transport Wnd (MPH)   W 13                      N  8
Vent Rate (MPH-FT)    50400                     30400
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Light winds,
becoming southwest around 5 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the mid 60s. Light winds, becoming southwest
around 5 mph after midnight.
.SATURDAY...Mostly sunny. Highs in the upper 70s. West winds
around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 60. Light winds.
.SUNDAY...Mostly sunny. Highs in the upper 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows around 60. Light winds.
.MONDAY...Mostly sunny. Highs in the upper 70s. South winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds around 5 mph in the evening, becoming light.

$$

ILZ023-182145-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        pcldy
Precip Type           tstms        tstms        None         None
Chance Precip (%)     30           50           10
Max Temp (24HR Trend) 80 (+1)                   76
Min RH % (24HR Trend) 65 (+4)                   78
Min Temp (24HR Trend)              66 (+5)                   58
Max RH % (24HR Trend)              97 (-1)                   98
20FT Wind AM (MPH)    SW 5-8                    Lgt/Var
20FT Wind PM (MPH)    SW 5-8       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH) 14
Precip Amount (IN)    0.00         0.10-0.25    0.00         0.00
11 AM Mixing Hgt (FT) 2700                      1900
Max Mixing Hgt (FT)   3900                      3800
Transport Wnd (MPH)   W 14                      N  6
Vent Rate (MPH-FT)    58500                     26600
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the upper 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Light winds,
becoming southwest around 5 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the lower 60s. Light winds, becoming southwest
around 5 mph after midnight.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Light winds.

$$

ILZ039-182145-
Ford-
Including the cities of Paxton and Gibson City
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        pcldy        mcldy        pcldy
Precip Type           None         tstms        tstms        None
Chance Precip (%)     10           40           30           10
Max Temp (24HR Trend) 80 (+1)                   76
Min RH % (24HR Trend) 64 (0)                    81
Min Temp (24HR Trend)              66 (+6)                   59
Max RH % (24HR Trend)              96 (-2)                   98
20FT Wind AM (MPH)    SW 5-7                    Lgt/Var
20FT Wind PM (MPH)    SW 5-7       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN)    0.00         0.05-0.10    0.01-0.05    0.00
11 AM Mixing Hgt (FT) 2800                      1600
Max Mixing Hgt (FT)   3800                      3300
Transport Wnd (MPH)   SW 12                     N  8
Vent Rate (MPH-FT)    49400                     26400
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the mid 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.FRIDAY...Sunny. Highs in the upper 70s. Light winds, becoming
southwest around 5 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the lower 60s. Light winds, becoming southwest
around 5 mph after midnight.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest
winds around 5 mph in the evening, becoming light.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the upper 70s. Southeast winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s. Southeast
winds around 5 mph.

$$

ILZ033-182145-
Iroquois-
Including the cities of Watseka and Gilman
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        mcldy        pcldy
Precip Type           None         tstms        showers      None
Chance Precip (%)     20           40           30           10
Max Temp (24HR Trend) 80 (+1)                   76
Min RH % (24HR Trend) 63 (-3)                   80
Min Temp (24HR Trend)              66 (+6)                   58
Max RH % (24HR Trend)              96 (-1)                   98
20FT Wind AM (MPH)    Lgt/Var                   Lgt/Var
20FT Wind PM (MPH)    SW 4-7       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN)    0.00         0.10-0.25    0.01-0.05    0.00
11 AM Mixing Hgt (FT) 2800                      1600
Max Mixing Hgt (FT)   4000                      3300
Transport Wnd (MPH)   SW 12                     N  6
Vent Rate (MPH-FT)    52000                     23100
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the mid 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Light winds.
.FRIDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the lower 60s. Light winds.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Light winds,
becoming northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. Light winds,
becoming south around 5 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Light winds.

$$

INZ010-182145-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        pcldy
Precip Type           None         tstms        showers      None
Chance Precip (%)     20           50           20           10
Max Temp (24HR Trend) 80 (+2)                   75
Min RH % (24HR Trend) 63 (+2)                   82
Min Temp (24HR Trend)              66 (+6)                   58
Max RH % (24HR Trend)              97 (0)                    97
20FT Wind AM (MPH)    SW 5-7                    Lgt/Var
20FT Wind PM (MPH)    SW 5-7       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN)    0.00         0.10-0.25    0.01-0.05    0.00
11 AM Mixing Hgt (FT) 2800                      1800
Max Mixing Hgt (FT)   4100                      3500
Transport Wnd (MPH)   SW 13                     N  6
Vent Rate (MPH-FT)    57400                     24500
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the mid 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Light winds.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light
winds.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. Light winds,
becoming southwest around 5 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.

$$

INZ011-182145-
Jasper-
Including the cities of Rensselaer and DeMotte
431 AM CDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        pcldy        pcldy
Precip Type           None         tstms        showers      None
Chance Precip (%)     20           50           20           10
Max Temp (24HR Trend) 80 (+2)                   75
Min RH % (24HR Trend) 63 (+2)                   83
Min Temp (24HR Trend)              66 (+7)                   57
Max RH % (24HR Trend)              97 (-1)                   97
20FT Wind AM (MPH)    W 5-7                     Lgt/Var
20FT Wind PM (MPH)    SW 5-7       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN)    0.00         0.10-0.25    0.01-0.05    0.00
11 AM Mixing Hgt (FT) 3000                      1900
Max Mixing Hgt (FT)   4200                      3500
Transport Wnd (MPH)   SW 13                     N  8
Vent Rate (MPH-FT)    58800                     28000
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Sunny. Highs in the mid 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Light winds,
becoming southwest around 5 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light
winds, becoming southwest around 5 mph after midnight.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the mid 70s. West winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Light winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. Southwest winds
around 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.

$$

INZ019-182145-
Benton-
Including the cities of Fowler and Oxford
531 AM EDT Tue Aug 18 2026

                      Today        Tonight      Wed          Wed Night

Cloud Cover           pcldy        mcldy        mcldy        pcldy
Precip Type           None         tstms        tstms        None
Chance Precip (%)     10           40           40           10
Max Temp (24HR Trend) 80 (+1)                   75
Min RH % (24HR Trend) 62 (+1)                   82
Min Temp (24HR Trend)              66 (+6)                   59
Max RH % (24HR Trend)              96 (0)                    96
20FT Wind AM (MPH)    Lgt/Var                   Lgt/Var
20FT Wind PM (MPH)    SW 4-7       Lgt/Var      Lgt/Var      Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN)    0.00         0.05-0.10    0.05-0.10    0.00
11 AM Mixing Hgt (FT) 3000                      1600
Max Mixing Hgt (FT)   4000                      3100
Transport Wnd (MPH)   SW 12                     N  5
Vent Rate (MPH-FT)    52000                     18600
Vent Rate Category    fair                      poor

.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)

.THURSDAY...Mostly sunny. Highs in the mid 70s. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.FRIDAY...Sunny. Highs in the mid 70s. Light winds.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. Light
winds.
.SATURDAY...Mostly sunny. A chance of showers and thunderstorms
in the afternoon. Highs in the upper 70s. West winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. Light
winds.
.SUNDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light
winds.
.MONDAY...Mostly sunny. Highs in the mid 70s. South winds around
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows around 60. Light winds.

$$

Kluber