Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
808
FNUS53 KLOT 022049
FWFLOT
Fire Weather Planning Forecast For Northern IL and Northwest IN
National Weather Service Chicago/Romeoville IL
349 PM CDT Fri Oct 2 2026
.DISCUSSION...
An area of high pressure over the Great Lakes region will be the
dominant weather feature through at least the middle of next week
resulting in an extended period of tranquil weather. Therefore,
expect seasonable temperatures with highs in the 60s to lower 70s
and overnight lows in the 40s to around 50. With ample sunshine
during this period daily mixing heights should peak around
3000-5000 ft each afternoon. RH values, however, may vary a bit
day to day as deeper mixed days may allow dew points to lower and
result in minimum RH values around 35-45% (45-55% on lesser mixed
days). At this time, the best chances for these lower RH readings
look to be Monday through Wednesday of next week, but if dew
points mix out on Saturday (like they have today) then these
readings could be seen then too.
ILZ014-030930-
Cook-
Including the cities of Chicago, Schaumburg, Evanston, Oak Lawn,
Lemont, Orland Park, and Park Forest
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 68 (+3) 71
Min RH % (24HR Trend) 54 (+6) 54
Min Temp (24HR Trend) 46 (-9) 48
Max RH % (24HR Trend) 91 (-8) 96
20FT Wind AM (MPH) E 5-6 W 5-8
20FT Wind PM (MPH) Lgt/Var SE 5-6 Lgt/Var NW 5-8
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2900 2200
Max Mixing Hgt (FT) 3600 4900
Transport Wnd (MPH) SE 8 NW 12
Vent Rate (MPH-FT) 28800 63700
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the upper 40s. Northwest winds
around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the mid 40s. Northeast winds
around 5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows around 50. South winds around
5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 5 mph.
$$
ILZ006-030930-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear mclear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 67 (+3) 70
Min RH % (24HR Trend) 57 (+7) 55
Min Temp (24HR Trend) 42 (-9) 46
Max RH % (24HR Trend) 94 (-6) 99
20FT Wind AM (MPH) SE 6-7 W 7-9
20FT Wind PM (MPH) Lgt/Var SE 6-7 Lgt/Var NW 7-9
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 3000 1900
Max Mixing Hgt (FT) 3300 5100
Transport Wnd (MPH) SE 10 NW 14
Vent Rate (MPH-FT) 33000 76500
Vent Rate Category poor good
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the lower 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph, becoming southwest in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows around 50. Light winds,
becoming west around 5 mph after midnight.
$$
INZ001-030930-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 68 (+3) 73
Min RH % (24HR Trend) 54 (+2) 56
Min Temp (24HR Trend) 43 (-16) 44
Max RH % (24HR Trend) 93 (-5) 100
20FT Wind AM (MPH) E 5 Lgt/Var
20FT Wind PM (MPH) NE 5 SE 5 Lgt/Var NW 3-6
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 2100
Max Mixing Hgt (FT) 3700 4500
Transport Wnd (MPH) SE 9 NW 11
Vent Rate (MPH-FT) 33300 54000
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. Southwest winds
around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Light
winds, becoming southwest around 5 mph after midnight.
$$
INZ002-030930-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 68 (+3) 72
Min RH % (24HR Trend) 52 (0) 54
Min Temp (24HR Trend) 43 (-15) 44
Max RH % (24HR Trend) 93 (-7) 100
20FT Wind AM (MPH) E 5 Lgt/Var
20FT Wind PM (MPH) NE 5-6 SE 5 Lgt/Var NW 4-6
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2700 1900
Max Mixing Hgt (FT) 3700 4100
Transport Wnd (MPH) SE 10 NW 11
Vent Rate (MPH-FT) 37000 49200
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. North winds
around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. Southwest winds
around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows around 50. Light winds,
becoming southwest around 5 mph after midnight.
$$
ILZ013-030930-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear mclear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 68 (+2) 71
Min RH % (24HR Trend) 56 (+8) 56
Min Temp (24HR Trend) 45 (-9) 48
Max RH % (24HR Trend) 91 (-8) 98
20FT Wind AM (MPH) E 5-6 W 5-8
20FT Wind PM (MPH) Lgt/Var SE 5-6 Lgt/Var NW 5-8
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2900 2000
Max Mixing Hgt (FT) 3500 4100
Transport Wnd (MPH) SE 8 NW 13
Vent Rate (MPH-FT) 28000 57400
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the upper 40s. Northwest winds
around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the mid 40s. Northeast winds
around 5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 5 mph.
$$
ILZ012-030930-
Kane-
Including the cities of Aurora and Elgin
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 67 (+2) 71
Min RH % (24HR Trend) 55 (+12) 53
Min Temp (24HR Trend) 43 (-8) 46
Max RH % (24HR Trend) 93 (-7) 100
20FT Wind AM (MPH) E 5-6 W 6-8
20FT Wind PM (MPH) Lgt/Var SE 5-6 Lgt/Var NW 6-8
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 1800
Max Mixing Hgt (FT) 3200 4100
Transport Wnd (MPH) SE 10 NW 13
Vent Rate (MPH-FT) 32000 57400
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the mid 40s. Northwest winds
around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. Northwest winds
around 5 mph, becoming southwest in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows around 50. West winds
around 5 mph.
$$
ILZ005-030930-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear mclear mclear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 67 (+2) 70
Min RH % (24HR Trend) 56 (+11) 54
Min Temp (24HR Trend) 41 (-7) 46
Max RH % (24HR Trend) 91 (-9) 98
20FT Wind AM (MPH) SE 5-6 W 6-8
20FT Wind PM (MPH) Lgt/Var S 5-6 Lgt/Var NW 6-8
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2800 1800
Max Mixing Hgt (FT) 3200 4900
Transport Wnd (MPH) SE 11 NW 14
Vent Rate (MPH-FT) 38400 73500
Vent Rate Category poor good
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the lower 40s. Northwest winds
around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the mid 60s. Light winds.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph, becoming southwest in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
$$
ILZ004-030930-
Boone-
Including the city of Belvidere
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear mclear mclear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 67 (+2) 69
Min RH % (24HR Trend) 54 (+12) 52
Min Temp (24HR Trend) 41 (-6) 46
Max RH % (24HR Trend) 91 (-8) 99
20FT Wind AM (MPH) SE 5-6 W 5-8
20FT Wind PM (MPH) Lgt/Var S 5-6 Lgt/Var NW 5-8
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 1800
Max Mixing Hgt (FT) 3100 5000
Transport Wnd (MPH) S 11 NW 16
Vent Rate (MPH-FT) 37200 80000
Vent Rate Category poor good
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the lower 40s. Northwest winds
around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the mid 60s. Light winds.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph, becoming southwest in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
$$
ILZ011-030930-
De Kalb-
Including the cities of DeKalb and Sycamore
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear mclear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 67 (+1) 71
Min RH % (24HR Trend) 51 (+10) 48
Min Temp (24HR Trend) 42 (-7) 46
Max RH % (24HR Trend) 93 (-7) 99
20FT Wind AM (MPH) SE 5-6 W 6-9
20FT Wind PM (MPH) Lgt/Var SE 5-6 Lgt/Var NW 6-9
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2400 1800
Max Mixing Hgt (FT) 3100 4200
Transport Wnd (MPH) SE 10 NW 13
Vent Rate (MPH-FT) 31000 58800
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the lower 40s. Northwest winds
around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. West winds
around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 5 mph.
$$
ILZ003-030930-
Winnebago-
Including the city of Rockford
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear mclear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 67 (+1) 70
Min RH % (24HR Trend) 51 (+12) 49
Min Temp (24HR Trend) 40 (-8) 46
Max RH % (24HR Trend) 90 (-7) 98
20FT Wind AM (MPH) SE 5-7 W 6-9
20FT Wind PM (MPH) Lgt/Var S 5-7 Lgt/Var NW 6-9
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 1900
Max Mixing Hgt (FT) 3200 5000
Transport Wnd (MPH) S 12 NW 14
Vent Rate (MPH-FT) 41600 75000
Vent Rate Category poor good
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the lower 40s. Northwest winds
around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the mid 60s. Light winds.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the lower 70s. Northwest winds
around 5 mph, becoming southwest in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph.
$$
ILZ008-030930-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear mclear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 68 (+2) 71
Min RH % (24HR Trend) 50 (+12) 48
Min Temp (24HR Trend) 41 (-7) 46
Max RH % (24HR Trend) 91 (-8) 99
20FT Wind AM (MPH) Lgt/Var W 5-8
20FT Wind PM (MPH) Lgt/Var S 4-6 Lgt/Var NW 5-8
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2300 1800
Max Mixing Hgt (FT) 3100 4300
Transport Wnd (MPH) S 11 NW 14
Vent Rate (MPH-FT) 37200 64500
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the lower 40s. Northwest winds
around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the mid 60s. Light winds.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the mid 70s. Southwest winds
around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. West winds around
5 mph.
$$
ILZ010-030930-
Lee-
Including the city of Dixon
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 68 (+1) 72
Min RH % (24HR Trend) 47 (+11) 46
Min Temp (24HR Trend) 41 (-9) 46
Max RH % (24HR Trend) 92 (-8) 100
20FT Wind AM (MPH) SE 5 Lgt/Var
20FT Wind PM (MPH) Lgt/Var SE 5 Lgt/Var NW 4-8
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2200 1800
Max Mixing Hgt (FT) 3100 4100
Transport Wnd (MPH) SE 10 NW 13
Vent Rate (MPH-FT) 31000 57400
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the lower 40s. Northwest winds
around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the upper 60s. Light winds.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming southeast around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. West winds
around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. West winds
around 5 mph.
$$
ILZ019-030930-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 70 (+2) 74
Min RH % (24HR Trend) 43 (+8) 45
Min Temp (24HR Trend) 43 (-9) 47
Max RH % (24HR Trend) 93 (-6) 97
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var NW 4-7
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2000 1800
Max Mixing Hgt (FT) 3300 4100
Transport Wnd (MPH) SE 9 NW 12
Vent Rate (MPH-FT) 29700 53300
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the mid 40s. North winds around
5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around 5 mph
in the morning, becoming light.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs around 70. Southeast winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds around 5 mph.
$$
ILZ020-030930-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 69 (+2) 73
Min RH % (24HR Trend) 51 (+10) 51
Min Temp (24HR Trend) 43 (-10) 46
Max RH % (24HR Trend) 93 (-7) 99
20FT Wind AM (MPH) E 5 Lgt/Var
20FT Wind PM (MPH) Lgt/Var SE 5 Lgt/Var NW 4-8
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2400 1800
Max Mixing Hgt (FT) 3300 4100
Transport Wnd (MPH) SE 9 NW 13
Vent Rate (MPH-FT) 29700 57400
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the mid 40s. Northwest winds
around 5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the mid 70s. Southwest winds
around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. West winds
around 5 mph.
.THURSDAY...Mostly sunny. Highs in the mid 70s. Northwest winds
around 5 mph, becoming southwest in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 5 mph.
$$
ILZ021-030930-
Grundy-
Including the cities of Morris, Coal City, and Minooka
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 71 (+2) 75
Min RH % (24HR Trend) 49 (+10) 51
Min Temp (24HR Trend) 43 (-11) 47
Max RH % (24HR Trend) 94 (-6) 99
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var NW 3-6
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2400 1800
Max Mixing Hgt (FT) 3500 4000
Transport Wnd (MPH) SE 8 NW 12
Vent Rate (MPH-FT) 28000 52000
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the mid 40s. North winds around
5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 50. West winds
around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the mid 70s. West winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Light
winds.
$$
ILZ022-030930-
Will-
Including the cities of Joliet, Bolingbrook, and Wilmington
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 69 (+2) 73
Min RH % (24HR Trend) 51 (+2) 54
Min Temp (24HR Trend) 44 (-11) 46
Max RH % (24HR Trend) 93 (-7) 99
20FT Wind AM (MPH) E 5 Lgt/Var
20FT Wind PM (MPH) Lgt/Var SE 5 Lgt/Var NW 4-7
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 1800
Max Mixing Hgt (FT) 3500 4100
Transport Wnd (MPH) SE 9 NW 12
Vent Rate (MPH-FT) 31500 53300
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the upper 40s. Northwest winds
around 5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. West winds
around 5 mph.
.THURSDAY...Mostly sunny. Highs in the mid 70s. Southwest winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 5 mph.
$$
ILZ032-030930-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 71 (0) 75
Min RH % (24HR Trend) 47 (+13) 50
Min Temp (24HR Trend) 42 (-12) 46
Max RH % (24HR Trend) 97 (-3) 99
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var NW 2-6
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2200 1800
Max Mixing Hgt (FT) 3300 4200
Transport Wnd (MPH) SE 8 NW 13
Vent Rate (MPH-FT) 26400 58800
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the mid 40s. Northwest winds
around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs around 70. Light winds, becoming north
around 5 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 50. Southwest winds
around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the upper 70s. Southwest winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds.
$$
ILZ023-030930-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 70 (+1) 74
Min RH % (24HR Trend) 50 (+6) 52
Min Temp (24HR Trend) 43 (-13) 45
Max RH % (24HR Trend) 95 (-3) 100
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var NW 2-5
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 1900
Max Mixing Hgt (FT) 3800 4100
Transport Wnd (MPH) SE 9 NW 13
Vent Rate (MPH-FT) 34200 57400
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the upper 60s. Light winds, becoming
north around 5 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs around 70. Southeast winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.THURSDAY...Sunny. Highs in the mid 70s. Light winds, becoming
southwest around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Light
winds.
$$
ILZ039-030930-
Ford-
Including the cities of Paxton and Gibson City
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 71 (0) 75
Min RH % (24HR Trend) 44 (+3) 47
Min Temp (24HR Trend) 42 (-14) 46
Max RH % (24HR Trend) 98 (-2) 98
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var NW 2-5
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2300 1900
Max Mixing Hgt (FT) 3300 4200
Transport Wnd (MPH) SE 8 NW 11
Vent Rate (MPH-FT) 26400 50400
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Clear. Lows in the mid 40s. North winds around
5 mph.
.MONDAY...Sunny. Highs around 70. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph.
.TUESDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. Southwest winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 70s. Southwest winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds, becoming southwest around 5 mph after midnight.
$$
ILZ033-030930-
Iroquois-
Including the cities of Watseka and Gilman
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 70 (0) 75
Min RH % (24HR Trend) 43 (+2) 45
Min Temp (24HR Trend) 43 (-14) 45
Max RH % (24HR Trend) 97 (-1) 99
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 1900
Max Mixing Hgt (FT) 3700 4200
Transport Wnd (MPH) SE 8 NW 13
Vent Rate (MPH-FT) 29600 58800
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the upper 60s. Light winds, becoming
north around 5 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs around 70. Southeast winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
.THURSDAY...Sunny. Highs in the upper 70s. Light winds, becoming
southwest around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds.
$$
INZ010-030930-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 69 (+1) 73
Min RH % (24HR Trend) 46 (+4) 47
Min Temp (24HR Trend) 43 (-16) 45
Max RH % (24HR Trend) 96 (-3) 98
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2700 1900
Max Mixing Hgt (FT) 3800 4600
Transport Wnd (MPH) SE 10 NW 11
Vent Rate (MPH-FT) 38000 55200
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the upper 60s. Light winds, becoming
north around 5 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.THURSDAY...Sunny. Highs in the mid 70s. Light winds, becoming
southwest around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Light winds.
$$
INZ011-030930-
Jasper-
Including the cities of Rensselaer and DeMotte
349 PM CDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 69 (+2) 73
Min RH % (24HR Trend) 47 (+3) 48
Min Temp (24HR Trend) 43 (-16) 44
Max RH % (24HR Trend) 95 (-5) 98
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var Lgt/Var Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2800 1900
Max Mixing Hgt (FT) 3800 4900
Transport Wnd (MPH) SE 10 NW 11
Vent Rate (MPH-FT) 38000 58800
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the upper 60s. Light winds, becoming
north around 5 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Southwest winds around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the mid 70s. West winds around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows around 50. Light winds.
$$
INZ019-030930-
Benton-
Including the cities of Fowler and Oxford
449 PM EDT Fri Oct 2 2026
Tonight Sat Sat Night Sun
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 69 (+2) 74
Min RH % (24HR Trend) 45 (+3) 45
Min Temp (24HR Trend) 43 (-17) 45
Max RH % (24HR Trend) 95 (-5) 98
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) NE 5-6 Lgt/Var Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 1900
Max Mixing Hgt (FT) 3600 4300
Transport Wnd (MPH) E 10 NW 11
Vent Rate (MPH-FT) 36000 51600
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Light winds.
.MONDAY...Sunny. Highs in the upper 60s. Light winds, becoming
north around 5 mph in the afternoon.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Clear. Lows in the mid 40s. Light winds,
becoming south around 5 mph after midnight.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 50. Light winds.
.THURSDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds.
$$
Yack