Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
162
FNUS53 KLOT 032045
FWFLOT
Fire Weather Planning Forecast For Northern IL and Northwest IN
National Weather Service Chicago/Romeoville IL
345 PM CDT Sat Oct 3 2026
.DISCUSSION...
High pressure will generally remain in control through much of the
upcoming week which should keep tranquil weather in play. However,
a stout shortwave will traverse across the Upper Midwest and
northern Great Lakes tonight and drag a cold front across northern
IL and northwest IN. While there area a few showers ongoing with
this wave and front, the drier air on the southern edge of the
system is preventing the rain from developing south of MN. That
said, a stray light shower or sprinkle cannot be ruled out near
the IL-WI line tonight (10-15% chance) but it seems the most
likely scenario is for dry conditions to prevail.
Otherwise, expect seasonable temperatures in the 60s and lower 70s
each afternoon with overnight generally in the 40s and 50s this
week. Daily mixing heights will peak around 4000-5000 ft with
afternoon RH values in the 35-45% range most days. Though, Sunday
will see RH readings around 45-55% because of slightly higher dew
points ahead of the aforementioned front.
ILZ014-040915-
Cook-
Including the cities of Chicago, Schaumburg, Evanston, Oak Lawn,
Lemont, Orland Park, and Park Forest
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover mclear mclear mclear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 70 (+3) 65
Min RH % (24HR Trend) 54 (+8) 46
Min Temp (24HR Trend) 46 (-1) 45
Max RH % (24HR Trend) 99 (+6) 86
20FT Wind AM (MPH) W 7-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 7-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 3500
Max Mixing Hgt (FT) 4000 6100
Transport Wnd (MPH) NW 12 NE 6
Vent Rate (MPH-FT) 52000 42700
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the mid 40s. East winds around
5 mph.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
around 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. West
winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the upper 60s. West winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds
around 5 mph, becoming south after midnight.
$$
ILZ006-040915-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover pcldy mclear clear clear
Precip Type sprinkles None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 68 (+2) 64
Min RH % (24HR Trend) 56 (+7) 48
Min Temp (24HR Trend) 45 (+2) 41
Max RH % (24HR Trend) 100 (0) 95
20FT Wind AM (MPH) W 8-9 Lgt/Var
20FT Wind PM (MPH) S 5 NW 8-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 2900
Max Mixing Hgt (FT) 3500 5900
Transport Wnd (MPH) NW 14 NE 6
Vent Rate (MPH-FT) 52500 41300
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Mostly clear. Lows in the lower 40s. Light winds,
becoming south around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 10 to
15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds 5 to 10 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the upper 60s. West winds
around 5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds, becoming west around 5 mph after midnight.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds,
becoming south around 5 mph after midnight.
$$
INZ001-040915-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear mclear mclear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 72 (+4) 66
Min RH % (24HR Trend) 54 (+6) 47
Min Temp (24HR Trend) 42 (-2) 45
Max RH % (24HR Trend) 100 (+1) 93
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 4-7 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 3900
Max Mixing Hgt (FT) 4000 6100
Transport Wnd (MPH) NW 12 N 6
Vent Rate (MPH-FT) 52000 42700
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.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 around 50. South winds around
5 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs around 70. Northwest winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds, becoming south around 5 mph after midnight.
.FRIDAY...Sunny. Highs in the lower 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. East winds around
5 mph, becoming south after midnight.
$$
INZ002-040915-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear mclear mclear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 71 (+4) 65
Min RH % (24HR Trend) 53 (+4) 45
Min Temp (24HR Trend) 42 (-2) 46
Max RH % (24HR Trend) 100 (+1) 99
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 4-7 Lgt/Var N 4-5
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 4300
Max Mixing Hgt (FT) 3700 6100
Transport Wnd (MPH) NW 12 N 8
Vent Rate (MPH-FT) 48100 48800
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West
winds around 5 mph.
.THURSDAY...Sunny. Highs around 70. Northwest winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds, becoming south around 5 mph after midnight.
.FRIDAY...Sunny. Highs around 70. Southwest winds around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph, becoming southeast after midnight.
$$
ILZ013-040915-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover mclear mclear mclear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 70 (+3) 65
Min RH % (24HR Trend) 54 (+9) 46
Min Temp (24HR Trend) 47 (+2) 44
Max RH % (24HR Trend) 100 (+5) 88
20FT Wind AM (MPH) W 7-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 7-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1800 2900
Max Mixing Hgt (FT) 3700 6000
Transport Wnd (MPH) NW 13 N 5
Vent Rate (MPH-FT) 51800 36000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the mid 40s. East winds around
5 mph, becoming southeast after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds around 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. West winds
around 5 mph.
.THURSDAY...Mostly sunny. Highs around 70. Northwest winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs around 70. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds
around 5 mph, becoming south after midnight.
$$
ILZ012-040915-
Kane-
Including the cities of Aurora and Elgin
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover mclear mclear clear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 70 (+3) 65
Min RH % (24HR Trend) 54 (+5) 43
Min Temp (24HR Trend) 45 (+2) 42
Max RH % (24HR Trend) 100 (0) 94
20FT Wind AM (MPH) W 7-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 7-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1800 1900
Max Mixing Hgt (FT) 3400 5200
Transport Wnd (MPH) NW 14 N 5
Vent Rate (MPH-FT) 51000 31200
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming southeast around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 10 to
15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds around 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. West winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Northwest winds around 5 mph.
.THURSDAY...Mostly sunny. Highs around 70. Northwest winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southwest
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs around 70. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
ILZ005-040915-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover pcldy mclear clear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 68 (+2) 64
Min RH % (24HR Trend) 55 (+7) 45
Min Temp (24HR Trend) 45 (+4) 41
Max RH % (24HR Trend) 100 (0) 95
20FT Wind AM (MPH) W 7-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 7-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 2300
Max Mixing Hgt (FT) 3200 5400
Transport Wnd (MPH) NW 16 N 6
Vent Rate (MPH-FT) 51200 37800
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming south around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 10 to
15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds 5 to 10 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. West winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light
winds.
.THURSDAY...Mostly sunny. Highs in the upper 60s. Light winds,
becoming west around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. Light winds.
$$
ILZ004-040915-
Boone-
Including the city of Belvidere
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover pcldy mclear clear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 68 (+1) 64
Min RH % (24HR Trend) 53 (+5) 44
Min Temp (24HR Trend) 45 (+3) 40
Max RH % (24HR Trend) 100 (0) 97
20FT Wind AM (MPH) W 6-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 6-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 1900
Max Mixing Hgt (FT) 3200 5100
Transport Wnd (MPH) NW 16 N 6
Vent Rate (MPH-FT) 51200 35700
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming southeast around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 10 to
15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds 5 to 10 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. West winds
5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 40s. West winds
around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the upper 60s. Light winds,
becoming west around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southwest
winds around 5 mph in the evening, becoming light.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. Southeast winds
around 5 mph.
$$
ILZ011-040915-
De Kalb-
Including the cities of DeKalb and Sycamore
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover mclear mclear clear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 70 (+3) 65
Min RH % (24HR Trend) 52 (+3) 39
Min Temp (24HR Trend) 46 (+3) 41
Max RH % (24HR Trend) 100 (0) 95
20FT Wind AM (MPH) W 7-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 7-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1800 1900
Max Mixing Hgt (FT) 3300 5100
Transport Wnd (MPH) NW 14 N 6
Vent Rate (MPH-FT) 49500 35700
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.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 10 to
15 mph.
.TUESDAY NIGHT...Mostly clear. Warmer. Lows in the lower 50s.
Southwest winds around 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. West winds around
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Northwest winds around 5 mph.
.THURSDAY...Mostly sunny. Highs around 70. Northwest winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southwest
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
ILZ003-040915-
Winnebago-
Including the city of Rockford
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover pcldy mclear clear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 68 (+1) 65
Min RH % (24HR Trend) 53 (+5) 42
Min Temp (24HR Trend) 45 (+3) 40
Max RH % (24HR Trend) 100 (+2) 98
20FT Wind AM (MPH) NW 7-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 7-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 1900
Max Mixing Hgt (FT) 3300 5100
Transport Wnd (MPH) NW 16 N 6
Vent Rate (MPH-FT) 52800 35700
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming south around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 10 to
15 mph.
.TUESDAY NIGHT...Mostly clear. Warmer. Lows in the lower 50s.
Southwest winds 5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. West winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 40s. West winds
around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the upper 60s. Light winds,
becoming west around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southwest
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs around 70. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. Southeast winds
around 5 mph.
$$
ILZ008-040915-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover mclear mclear clear clear
Precip Type None None None None
Chance Precip (%) 10
Max Temp (24HR Trend) 69 (+2) 65
Min RH % (24HR Trend) 51 (+2) 41
Min Temp (24HR Trend) 45 (+3) 40
Max RH % (24HR Trend) 99 (+1) 99
20FT Wind AM (MPH) NW 6-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 6-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1700 1800
Max Mixing Hgt (FT) 3200 5100
Transport Wnd (MPH) NW 14 N 6
Vent Rate (MPH-FT) 48000 35700
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.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 10 to
15 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds 5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. West 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 around 70. Light winds, becoming
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. South
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
ILZ010-040915-
Lee-
Including the city of Dixon
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover mclear mclear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 70 (+3) 66
Min RH % (24HR Trend) 49 (0) 39
Min Temp (24HR Trend) 45 (+3) 41
Max RH % (24HR Trend) 99 (0) 99
20FT Wind AM (MPH) NW 6-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 6-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1700 1800
Max Mixing Hgt (FT) 3200 5200
Transport Wnd (MPH) NW 16 NE 6
Vent Rate (MPH-FT) 51200 36400
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming southeast around 5 mph after midnight.
.TUESDAY...Sunny. Highs around 70. South winds around 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Northwest
winds around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the lower 70s. Light winds,
becoming west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. South
winds around 5 mph.
.FRIDAY...Sunny. Highs in the lower 70s. South winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
around 5 mph.
$$
ILZ019-040915-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 72 (+3) 67
Min RH % (24HR Trend) 48 (+2) 36
Min Temp (24HR Trend) 46 (+3) 44
Max RH % (24HR Trend) 97 (-2) 88
20FT Wind AM (MPH) W 5-8 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 5-8 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 14
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1700 1900
Max Mixing Hgt (FT) 3500 4900
Transport Wnd (MPH) NW 14 NE 5
Vent Rate (MPH-FT) 52500 29400
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming southeast around 5 mph after midnight.
.TUESDAY...Sunny. Highs around 70. South winds 5 to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. West winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the lower 70s. Light winds, becoming
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds, becoming south around 5 mph after midnight.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Clear. Lows in the lower 50s. South winds around
5 mph.
$$
ILZ020-040915-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover mclear mclear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 71 (+3) 67
Min RH % (24HR Trend) 53 (+6) 41
Min Temp (24HR Trend) 45 (+1) 43
Max RH % (24HR Trend) 100 (0) 92
20FT Wind AM (MPH) W 6-9 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 6-9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1700 1900
Max Mixing Hgt (FT) 3600 5000
Transport Wnd (MPH) NW 14 N 5
Vent Rate (MPH-FT) 54000 30000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming southeast around 5 mph after midnight.
.TUESDAY...Sunny. Highs around 70. South winds 5 to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
5 to 10 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Northwest
winds around 5 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. Northwest winds
around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Southwest winds
around 5 mph.
.FRIDAY...Sunny. Highs in the lower 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
ILZ021-040915-
Grundy-
Including the cities of Morris, Coal City, and Minooka
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 73 (+3) 68
Min RH % (24HR Trend) 51 (+7) 40
Min Temp (24HR Trend) 46 (+1) 44
Max RH % (24HR Trend) 97 (-3) 89
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 4-8 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 14
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1800 2200
Max Mixing Hgt (FT) 3800 5000
Transport Wnd (MPH) NW 14 NE 5
Vent Rate (MPH-FT) 57000 30000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the lower 70s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. 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 lower 70s. Light winds, becoming
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light
winds.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
around 5 mph.
$$
ILZ022-040915-
Will-
Including the cities of Joliet, Bolingbrook, and Wilmington
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear mclear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 72 (+4) 66
Min RH % (24HR Trend) 52 (+5) 43
Min Temp (24HR Trend) 43 (-2) 44
Max RH % (24HR Trend) 99 (+2) 89
20FT Wind AM (MPH) W 5-8 Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 5-8 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1800 3000
Max Mixing Hgt (FT) 3800 5700
Transport Wnd (MPH) NW 13 N 5
Vent Rate (MPH-FT) 53200 34200
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph, becoming southeast after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Mostly sunny. Highs in the lower 70s. Light winds,
becoming west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 50. South winds
around 5 mph.
.FRIDAY...Sunny. Highs in the lower 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
ILZ032-040915-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 74 (+4) 69
Min RH % (24HR Trend) 50 (+7) 39
Min Temp (24HR Trend) 44 (+1) 44
Max RH % (24HR Trend) 100 (+1) 90
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 4-7 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 13
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1800 2400
Max Mixing Hgt (FT) 3700 5300
Transport Wnd (MPH) NW 14 NE 5
Vent Rate (MPH-FT) 55500 31800
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the lower 70s. South winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 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
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Light winds.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Clear. Lows in the lower 50s. South winds around
5 mph.
$$
ILZ023-040915-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 73 (+4) 67
Min RH % (24HR Trend) 51 (+6) 42
Min Temp (24HR Trend) 43 (-1) 44
Max RH % (24HR Trend) 100 (+3) 93
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 3-7 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1800 3200
Max Mixing Hgt (FT) 3900 5500
Transport Wnd (MPH) NW 14 NE 5
Vent Rate (MPH-FT) 58500 33000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs around 70. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows around 50. South winds around
5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.THURSDAY...Sunny. Highs in the lower 70s. Light winds, becoming
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds
around 5 mph, becoming south after midnight.
$$
ILZ039-040915-
Ford-
Including the cities of Paxton and Gibson City
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 74 (+4) 69
Min RH % (24HR Trend) 47 (+4) 37
Min Temp (24HR Trend) 43 (-1) 44
Max RH % (24HR Trend) 100 (+2) 89
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 4-7 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2000 2600
Max Mixing Hgt (FT) 3900 5200
Transport Wnd (MPH) NW 14 NE 6
Vent Rate (MPH-FT) 58500 36400
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds,
becoming east around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the lower 70s. South winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows around 50. South winds around
5 mph.
.WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the mid 70s. Light winds, becoming
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows around 50. Light winds,
becoming south around 5 mph after midnight.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Clear. Lows in the lower 50s. South winds around
5 mph.
$$
ILZ033-040915-
Iroquois-
Including the cities of Watseka and Gilman
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 73 (+4) 69
Min RH % (24HR Trend) 48 (+3) 36
Min Temp (24HR Trend) 43 (-1) 44
Max RH % (24HR Trend) 100 (+2) 94
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 3-6 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2000 3300
Max Mixing Hgt (FT) 4200 5300
Transport Wnd (MPH) NW 13 NE 6
Vent Rate (MPH-FT) 58800 37100
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the lower 70s. South winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows around 50. South winds around
5 mph.
.WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.THURSDAY...Sunny. Highs in the mid 70s. Light winds, becoming
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the mid 70s. South winds around 5 mph,
becoming southwest in the afternoon.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds,
becoming south around 5 mph after midnight.
$$
INZ010-040915-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 73 (+5) 69
Min RH % (24HR Trend) 49 (+3) 37
Min Temp (24HR Trend) 42 (-2) 45
Max RH % (24HR Trend) 100 (0) 95
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 2-6 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 3900
Max Mixing Hgt (FT) 4300 6100
Transport Wnd (MPH) NW 13 NE 8
Vent Rate (MPH-FT) 60200 48800
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs around 70. South 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
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. East winds around
5 mph, becoming south after midnight.
$$
INZ011-040915-
Jasper-
Including the cities of Rensselaer and DeMotte
345 PM CDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 72 (+4) 67
Min RH % (24HR Trend) 49 (+3) 40
Min Temp (24HR Trend) 42 (-1) 45
Max RH % (24HR Trend) 100 (0) 98
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 3-6 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 4000
Max Mixing Hgt (FT) 4300 6100
Transport Wnd (MPH) NW 13 N 8
Vent Rate (MPH-FT) 60200 48800
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs around 70. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.THURSDAY...Sunny. Highs in the lower 70s. Light winds, becoming
west around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Mostly clear. Lows around 50. Northeast winds
around 5 mph, becoming south after midnight.
$$
INZ019-040915-
Benton-
Including the cities of Fowler and Oxford
445 PM EDT Sat Oct 3 2026
Tonight Sun Sun Night Mon
Cloud Cover clear clear clear clear
Precip Type None None None None
Chance Precip (%)
Max Temp (24HR Trend) 73 (+5) 69
Min RH % (24HR Trend) 48 (+2) 38
Min Temp (24HR Trend) 43 (-1) 45
Max RH % (24HR Trend) 100 (+1) 94
20FT Wind AM (MPH) Lgt/Var Lgt/Var
20FT Wind PM (MPH) Lgt/Var NW 2-6 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH)
Precip Amount (IN) 0.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 3700
Max Mixing Hgt (FT) 4300 5800
Transport Wnd (MPH) NW 13 NE 8
Vent Rate (MPH-FT) 60200 46400
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the lower 70s. South 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 in the upper 40s. Light
winds.
.THURSDAY...Sunny. Highs in the mid 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.FRIDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.FRIDAY NIGHT...Clear. Lows in the lower 50s. South winds around
5 mph.
$$
Yack