Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
904
FNUS53 KLOT 052048
FWFLOT
Fire Weather Planning Forecast For Northern IL and Northwest IN
National Weather Service Chicago/Romeoville IL
348 PM CDT Sun Oct 5 2025
.DISCUSSION...An elevated fire danger will continue through early
this evening with southwest winds gusting to 30 mph, which will
quickly diminish with sunset. Relative humidity levels in the 20
to 25 percent range will begin to rise after sunset. These weather
conditions combined with the dry fuel conditions may make any
fires that ignite difficult to control through early this evening.
A cold front will move across the area late Monday afternoon into
Monday evening, bringing a chance of showers and a few
thunderstorms. There will be a continued chance of showers
into Tuesday, mainly in the morning. While there may be some
isolated heavier amounts of rain, overall rainfall amounts look
to remain light, with most areas expected to see less than a half
inch. There will be another chance of showers Friday with another
above normal temperature pattern possible next weekend.
ILZ014-060930-
Cook-
Including the cities of Chicago, Schaumburg, Evanston, Oak Lawn,
Lemont, Orland Park, and Park Forest
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy cloudy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 50 90 40
Max Temp (24HR Trend) 85 (0) 66
Min RH % (24HR Trend) 44 (+18) 52
Min Temp (24HR Trend) 65 (+2) 57
Max RH % (24HR Trend) 78 (+6) 95
20FT Wind AM (MPH) SW 8 N 9
20FT Wind PM (MPH) S 8 SW 8 NW 5-6 N 9
Peak Wind Gusts (MPH) 13 15 19
Precip Amount (IN) 0.00 0.05-0.10 0.50-0.75 0.01-0.05
11 AM Mixing Hgt (FT) 2700 2200
Max Mixing Hgt (FT) 5100 3500
Transport Wnd (MPH) SW 12 N 12
Vent Rate (MPH-FT) 66300 45500
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows around 50. North winds around
5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 50s. East winds
around 5 mph, becoming southeast after midnight.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds
around 5 mph, becoming southeast after midnight.
$$
ILZ006-060930-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy cloudy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 50 90 30
Max Temp (24HR Trend) 84 (0) 66
Min RH % (24HR Trend) 49 (+18) 44
Min Temp (24HR Trend) 64 (0) 54
Max RH % (24HR Trend) 78 (+7) 98
20FT Wind AM (MPH) SW 8-9 N 8
20FT Wind PM (MPH) S 8-9 NW 8-9 N 5-6 N 8
Peak Wind Gusts (MPH) 15 16
Precip Amount (IN) 0.00 0.10-0.25 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2800 2000
Max Mixing Hgt (FT) 4500 4000
Transport Wnd (MPH) SW 13 N 11
Vent Rate (MPH-FT) 63000 48000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows around 50. Southeast winds
around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. South winds around
5 mph, becoming southeast in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
INZ001-060930-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 30 90 50
Max Temp (24HR Trend) 85 (+1) 65
Min RH % (24HR Trend) 45 (+17) 68
Min Temp (24HR Trend) 63 (+5) 60
Max RH % (24HR Trend) 84 (-4) 99
20FT Wind AM (MPH) SW 8 N 9-10
20FT Wind PM (MPH) S 7 SW 8 SW 5 N 9-10
Peak Wind Gusts (MPH) 16 19
Precip Amount (IN) 0.00 0.01-0.05 0.50-0.75 0.01-0.05
11 AM Mixing Hgt (FT) 2900 2200
Max Mixing Hgt (FT) 5400 2700
Transport Wnd (MPH) SW 12 N 16
Vent Rate (MPH-FT) 70200 43200
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph, becoming east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Northeast
winds around 5 mph, becoming southeast after midnight.
$$
INZ002-060930-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear mclear mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 30 90 50
Max Temp (24HR Trend) 85 (+2) 65
Min RH % (24HR Trend) 45 (+14) 67
Min Temp (24HR Trend) 64 (+5) 60
Max RH % (24HR Trend) 81 (-4) 99
20FT Wind AM (MPH) SW 8 N 8-10
20FT Wind PM (MPH) S 7 SW 8 SW 5 N 8-10
Peak Wind Gusts (MPH) 16 19
Precip Amount (IN) 0.00 0.01-0.05 0.50-0.75 0.01-0.05
11 AM Mixing Hgt (FT) 2800 2100
Max Mixing Hgt (FT) 5400 2500
Transport Wnd (MPH) S 13 N 16
Vent Rate (MPH-FT) 75600 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. East winds
around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the upper 40s. Northeast
winds around 5 mph.
.SATURDAY...Sunny. Highs around 70. East winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Northeast
winds around 5 mph, becoming southeast after midnight.
$$
ILZ013-060930-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 50 80 30
Max Temp (24HR Trend) 85 (0) 66
Min RH % (24HR Trend) 44 (+17) 51
Min Temp (24HR Trend) 64 (+2) 57
Max RH % (24HR Trend) 81 (+7) 96
20FT Wind AM (MPH) SW 8 N 9
20FT Wind PM (MPH) S 8 W 8 N 5-6 N 9
Peak Wind Gusts (MPH) 15 15
Precip Amount (IN) 0.00 0.10-0.25 0.50-0.75 0.01-0.05
11 AM Mixing Hgt (FT) 2600 2000
Max Mixing Hgt (FT) 4600 3400
Transport Wnd (MPH) SW 14 N 11
Vent Rate (MPH-FT) 69000 40800
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs around 70. South winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows around 50. East winds around
5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds
around 5 mph.
$$
ILZ012-060930-
Kane-
Including the cities of Aurora and Elgin
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 50 80 20
Max Temp (24HR Trend) 84 (-1) 66
Min RH % (24HR Trend) 45 (+16) 44
Min Temp (24HR Trend) 62 (+4) 54
Max RH % (24HR Trend) 86 (+4) 97
20FT Wind AM (MPH) SW 8 N 9
20FT Wind PM (MPH) S 8 W 8 N 5-6 N 9
Peak Wind Gusts (MPH) 14 16
Precip Amount (IN) 0.00 0.10-0.25 0.50-0.75 0.01-0.05
11 AM Mixing Hgt (FT) 2600 1700
Max Mixing Hgt (FT) 4600 3800
Transport Wnd (MPH) SW 13 N 11
Vent Rate (MPH-FT) 64400 45600
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
$$
ILZ005-060930-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 40 80 20
Max Temp (24HR Trend) 81 (-3) 66
Min RH % (24HR Trend) 51 (+21) 40
Min Temp (24HR Trend) 62 (+2) 52
Max RH % (24HR Trend) 81 (-1) 97
20FT Wind AM (MPH) SW 8 N 8
20FT Wind PM (MPH) S 8-9 N 8 Lgt/Var N 8
Peak Wind Gusts (MPH) 14 14
Precip Amount (IN) 0.00 0.10-0.25 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2700 2100
Max Mixing Hgt (FT) 4200 4000
Transport Wnd (MPH) SW 12 N 11
Vent Rate (MPH-FT) 54600 48000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. East
winds around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs around 70. Southwest winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph in the evening, becoming light.
.SATURDAY...Sunny. Highs in the lower 70s. North winds around
5 mph, becoming southeast in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
$$
ILZ004-060930-
Boone-
Including the city of Belvidere
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms None
Chance Precip (%) 20 40 80 20
Max Temp (24HR Trend) 79 (-6) 66
Min RH % (24HR Trend) 54 (+24) 36
Min Temp (24HR Trend) 62 (+4) 52
Max RH % (24HR Trend) 80 (-5) 96
20FT Wind AM (MPH) SW 7-8 N 8
20FT Wind PM (MPH) S 7-9 N 7-8 Lgt/Var N 8
Peak Wind Gusts (MPH) 14 14
Precip Amount (IN) 0.00 0.05-0.10 0.10-0.25 0.00
11 AM Mixing Hgt (FT) 2500 2100
Max Mixing Hgt (FT) 3700 3800
Transport Wnd (MPH) W 11 N 11
Vent Rate (MPH-FT) 44400 45600
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. North winds
around 5 mph in the evening, becoming light.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds
around 5 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. East winds
around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs around 70. South winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.SATURDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
$$
ILZ011-060930-
De Kalb-
Including the cities of DeKalb and Sycamore
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 40 80 20
Max Temp (24HR Trend) 85 (0) 67
Min RH % (24HR Trend) 44 (+15) 38
Min Temp (24HR Trend) 61 (+6) 53
Max RH % (24HR Trend) 87 (-4) 95
20FT Wind AM (MPH) SW 8 N 9
20FT Wind PM (MPH) S 8-9 NW 8 N 5-7 N 9
Peak Wind Gusts (MPH) 14 16
Precip Amount (IN) 0.00 0.10-0.25 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2800 1800
Max Mixing Hgt (FT) 4900 3900
Transport Wnd (MPH) SW 13 N 11
Vent Rate (MPH-FT) 68600 46800
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. Southeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$
ILZ003-060930-
Winnebago-
Including the city of Rockford
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms None
Chance Precip (%) 20 30 80 10
Max Temp (24HR Trend) 77 (-8) 66
Min RH % (24HR Trend) 53 (+24) 31
Min Temp (24HR Trend) 63 (+3) 51
Max RH % (24HR Trend) 76 (-1) 94
20FT Wind AM (MPH) SW 7-8 N 8-9
20FT Wind PM (MPH) S 7-9 N 7-8 N 6-7 N 8-9
Peak Wind Gusts (MPH) 13 14
Precip Amount (IN) 0.00 0.05-0.10 0.10-0.25 0.00
11 AM Mixing Hgt (FT) 2600 2300
Max Mixing Hgt (FT) 3500 4100
Transport Wnd (MPH) W 11 N 11
Vent Rate (MPH-FT) 42000 49200
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows around 40. North winds around
5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds
around 5 mph.
.WEDNESDAY NIGHT...Clear. Lows around 40. East winds around
5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds 5 to
10 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. Southeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. Southeast winds
around 5 mph.
$$
ILZ008-060930-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms None
Chance Precip (%) 20 30 80 10
Max Temp (24HR Trend) 82 (-3) 68
Min RH % (24HR Trend) 47 (+19) 30
Min Temp (24HR Trend) 61 (+4) 52
Max RH % (24HR Trend) 82 (+3) 93
20FT Wind AM (MPH) SW 7-8 N 8
20FT Wind PM (MPH) S 7-9 N 7-8 N 5-6 N 8
Peak Wind Gusts (MPH) 13 15
Precip Amount (IN) 0.00 0.10-0.25 0.10-0.25 0.00
11 AM Mixing Hgt (FT) 2800 2300
Max Mixing Hgt (FT) 4500 4300
Transport Wnd (MPH) W 11 N 11
Vent Rate (MPH-FT) 54000 51600
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows around 40. North winds around
5 mph.
.WEDNESDAY...Sunny. Highs around 70. Northeast winds around
5 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. Southeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. Southeast winds
around 5 mph.
$$
ILZ010-060930-
Lee-
Including the city of Dixon
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 40 80 20
Max Temp (24HR Trend) 84 (-1) 68
Min RH % (24HR Trend) 44 (+16) 33
Min Temp (24HR Trend) 61 (+5) 53
Max RH % (24HR Trend) 84 (+3) 95
20FT Wind AM (MPH) SW 7-8 N 7-9
20FT Wind PM (MPH) S 6-8 NW 7-8 N 5-6 N 7-9
Peak Wind Gusts (MPH) 13 16
Precip Amount (IN) 0.00 0.10-0.25 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2900 2300
Max Mixing Hgt (FT) 5100 4400
Transport Wnd (MPH) SW 12 N 11
Vent Rate (MPH-FT) 66300 52800
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Clear. Lows in the lower 40s. North winds around
5 mph.
.WEDNESDAY...Sunny. Highs around 70. Northeast winds around
5 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. Southeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. Southeast winds
around 5 mph.
$$
ILZ019-060930-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 40 80 30
Max Temp (24HR Trend) 86 (0) 67
Min RH % (24HR Trend) 41 (+15) 41
Min Temp (24HR Trend) 62 (+5) 57
Max RH % (24HR Trend) 85 (-1) 95
20FT Wind AM (MPH) SW 7-8 N 8-9
20FT Wind PM (MPH) S 7-8 SW 7-8 Lgt/Var N 8-9
Peak Wind Gusts (MPH) 14 16
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2800 1900
Max Mixing Hgt (FT) 5200 3000
Transport Wnd (MPH) SW 13 N 11
Vent Rate (MPH-FT) 72800 36000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows in the lower 40s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. East winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. East winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows around 50. East winds around
5 mph.
$$
ILZ020-060930-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy pcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 50 80 30
Max Temp (24HR Trend) 86 (0) 67
Min RH % (24HR Trend) 44 (+17) 48
Min Temp (24HR Trend) 61 (+4) 57
Max RH % (24HR Trend) 87 (+1) 97
20FT Wind AM (MPH) SW 8 N 9
20FT Wind PM (MPH) S 7 SW 8 Lgt/Var N 9
Peak Wind Gusts (MPH) 14 16
Precip Amount (IN) 0.00 0.05-0.10 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2700 1600
Max Mixing Hgt (FT) 4900 3000
Transport Wnd (MPH) SW 13 N 11
Vent Rate (MPH-FT) 68600 36000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. East
winds around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. Southeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$
ILZ021-060930-
Grundy-
Including the cities of Morris, Coal City, and Minooka
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 40 80 30
Max Temp (24HR Trend) 87 (0) 68
Min RH % (24HR Trend) 43 (+18) 55
Min Temp (24HR Trend) 64 (+8) 58
Max RH % (24HR Trend) 83 (-5) 98
20FT Wind AM (MPH) SW 8 N 8
20FT Wind PM (MPH) S 7 SW 8 Lgt/Var N 8
Peak Wind Gusts (MPH) 14 16
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2800 1800
Max Mixing Hgt (FT) 5800 2700
Transport Wnd (MPH) SW 14 N 11
Vent Rate (MPH-FT) 87000 32400
Vent Rate Category good poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. East
winds around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. East winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$
ILZ022-060930-
Will-
Including the cities of Joliet, Bolingbrook, and Wilmington
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 40 80 40
Max Temp (24HR Trend) 86 (+1) 67
Min RH % (24HR Trend) 45 (+20) 59
Min Temp (24HR Trend) 63 (+5) 58
Max RH % (24HR Trend) 85 (-3) 100
20FT Wind AM (MPH) SW 8 N 9
20FT Wind PM (MPH) S 7-8 SW 8 SW 5-6 N 9
Peak Wind Gusts (MPH) 15 17
Precip Amount (IN) 0.00 0.01-0.05 0.50-0.75 0.01-0.05
11 AM Mixing Hgt (FT) 2600 1900
Max Mixing Hgt (FT) 5600 2900
Transport Wnd (MPH) SW 14 N 12
Vent Rate (MPH-FT) 84000 37700
Vent Rate Category good poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 40s. Northeast
winds around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs around 70. South winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$
ILZ032-060930-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 10 30 80 40
Max Temp (24HR Trend) 86 (0) 68
Min RH % (24HR Trend) 43 (+22) 57
Min Temp (24HR Trend) 63 (+8) 58
Max RH % (24HR Trend) 86 (-2) 100
20FT Wind AM (MPH) SW 7-8 N 9
20FT Wind PM (MPH) S 7 SW 7-8 SW 5 N 9
Peak Wind Gusts (MPH) 15 16
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2700 1800
Max Mixing Hgt (FT) 5800 2600
Transport Wnd (MPH) S 13 N 13
Vent Rate (MPH-FT) 81200 36400
Vent Rate Category good poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs around 70. Northeast winds 5 to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows around 40. Northeast winds around
5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. East winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$
ILZ023-060930-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 30 80 50
Max Temp (24HR Trend) 86 (+1) 67
Min RH % (24HR Trend) 44 (+19) 64
Min Temp (24HR Trend) 63 (+8) 59
Max RH % (24HR Trend) 86 (-8) 100
20FT Wind AM (MPH) SW 7-8 N 8
20FT Wind PM (MPH) S 6 SW 7-8 Lgt/Var N 8
Peak Wind Gusts (MPH) 15 16
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2800 2000
Max Mixing Hgt (FT) 5400 2700
Transport Wnd (MPH) S 13 N 13
Vent Rate (MPH-FT) 75600 37800
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 40. Northeast winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. East winds
around 5 mph in the evening, becoming light.
.FRIDAY...Mostly sunny. Highs around 70. South winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$
ILZ039-060930-
Ford-
Including the cities of Paxton and Gibson City
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy pcldy mcldy
Precip Type None tstms tstms tstms
Chance Precip (%) 20 80 40
Max Temp (24HR Trend) 86 (+1) 69
Min RH % (24HR Trend) 44 (+20) 65
Min Temp (24HR Trend) 62 (+6) 59
Max RH % (24HR Trend) 87 (0) 100
20FT Wind AM (MPH) SW 8 N 8-10
20FT Wind PM (MPH) S 6 S 8 S 5-6 N 8-10
Peak Wind Gusts (MPH) 14 16
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2900 1800
Max Mixing Hgt (FT) 5700 2500
Transport Wnd (MPH) SW 10 N 14
Vent Rate (MPH-FT) 57000 37500
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Partly cloudy in the evening, then becoming
clear. Lows in the lower 40s. North winds around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows around 40. Northeast winds around
5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. East winds
around 5 mph.
.FRIDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the mid 70s. East winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$
ILZ033-060930-
Iroquois-
Including the cities of Watseka and Gilman
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 20 80 50
Max Temp (24HR Trend) 86 (+1) 68
Min RH % (24HR Trend) 43 (+18) 64
Min Temp (24HR Trend) 62 (+5) 60
Max RH % (24HR Trend) 84 (-2) 99
20FT Wind AM (MPH) SW 7 N 6-8
20FT Wind PM (MPH) S 6 S 7 Lgt/Var N 6-8
Peak Wind Gusts (MPH) 15 15
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 3000 1900
Max Mixing Hgt (FT) 5800 2600
Transport Wnd (MPH) SW 10 N 14
Vent Rate (MPH-FT) 58000 39000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the upper 60s. Northeast winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. Northeast
winds around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. East winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Light
winds.
.FRIDAY...Mostly sunny. Highs around 70. Southeast winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph.
$$
INZ010-060930-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms showers
Chance Precip (%) 20 80 50
Max Temp (24HR Trend) 85 (0) 67
Min RH % (24HR Trend) 45 (+19) 68
Min Temp (24HR Trend) 63 (+8) 60
Max RH % (24HR Trend) 84 (-11) 99
20FT Wind AM (MPH) SW 7-8 N 6-9
20FT Wind PM (MPH) S 5-6 SW 7-8 Lgt/Var N 6-9
Peak Wind Gusts (MPH) 15 17
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.01-0.05
11 AM Mixing Hgt (FT) 2900 2000
Max Mixing Hgt (FT) 5600 2500
Transport Wnd (MPH) SW 10 N 16
Vent Rate (MPH-FT) 56000 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. Northeast
winds around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 40. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Southeast winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph.
$$
INZ011-060930-
Jasper-
Including the cities of Rensselaer and DeMotte
348 PM CDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear pcldy mcldy mcldy
Precip Type None tstms tstms tstms
Chance Precip (%) 20 90 50
Max Temp (24HR Trend) 85 (+2) 67
Min RH % (24HR Trend) 45 (+16) 71
Min Temp (24HR Trend) 63 (+7) 61
Max RH % (24HR Trend) 82 (-13) 100
20FT Wind AM (MPH) SW 7-8 N 6-9
20FT Wind PM (MPH) S 5 SW 7-8 Lgt/Var N 6-9
Peak Wind Gusts (MPH) 15 18
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.05-0.10
11 AM Mixing Hgt (FT) 3000 2000
Max Mixing Hgt (FT) 5900 2500
Transport Wnd (MPH) S 13 N 14
Vent Rate (MPH-FT) 82600 37500
Vent Rate Category good poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 30s. Northeast
winds around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 40. Light winds.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Southeast winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Northeast
winds around 5 mph, becoming southeast after midnight.
$$
INZ019-060930-
Benton-
Including the cities of Fowler and Oxford
448 PM EDT Sun Oct 5 2025
Tonight Mon Mon Night Tue
Cloud Cover clear mclear mcldy mcldy
Precip Type None tstms tstms tstms
Chance Precip (%) 20 90 50
Max Temp (24HR Trend) 84 (0) 69
Min RH % (24HR Trend) 46 (+17) 68
Min Temp (24HR Trend) 63 (+6) 62
Max RH % (24HR Trend) 82 (-6) 99
20FT Wind AM (MPH) SW 7-8 NW 6-9
20FT Wind PM (MPH) S 5 S 7-8 Lgt/Var N 6-9
Peak Wind Gusts (MPH) 14 16
Precip Amount (IN) 0.00 0.01-0.05 0.25-0.50 0.10-0.25
11 AM Mixing Hgt (FT) 2800 1800
Max Mixing Hgt (FT) 5300 2300
Transport Wnd (MPH) S 10 N 14
Vent Rate (MPH-FT) 53000 34500
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 40. Northeast winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Light
winds.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Light winds,
becoming southeast around 5 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
$$