Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
337
FNUS53 KLOT 062041
FWFLOT
Fire Weather Planning Forecast For Northern IL and Northwest IN
National Weather Service Chicago/Romeoville IL
341 PM CDT Mon Oct 6 2025
.DISCUSSION...A cold front will move across the area tonight with
scattered showers and thunderstorms. Locally heavy rain will be
possible in areas where thunderstorms move, though some areas will
likely see less than a half inch of rain. While temperatures will
be much cooler for the rest of the week, they will be near normal
for mid October with temperatures possibly warming back above
normal this weekend.
ILZ014-070915-
Cook-
Including the cities of Chicago, Schaumburg, Evanston, Oak Lawn,
Lemont, Orland Park, and Park Forest
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy pcldy clear mclear
Precip Type tstms showers None None
Chance Precip (%) 70 30
Max Temp (24HR Trend) 66 (-17) 63
Min RH % (24HR Trend) 47 (-4) 49
Min Temp (24HR Trend) 57 (-10) 47
Max RH % (24HR Trend) 92 (+18) 81
20FT Wind AM (MPH) N 10-11 NE 7-8
20FT Wind PM (MPH) NW 6-8 N 10-11 N 5 NE 7-8
Peak Wind Gusts (MPH) 18 19 15
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 2400 4500
Max Mixing Hgt (FT) 3900 4600
Transport Wnd (MPH) N 16 NE 11
Vent Rate (MPH-FT) 62400 55200
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the mid 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 in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs around 70. Northeast winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. Northeast
winds around 5 mph, becoming southeast after midnight.
.SUNDAY...Sunny. Highs in the lower 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ006-070915-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy pcldy clear mclear
Precip Type tstms showers None None
Chance Precip (%) 70 30
Max Temp (24HR Trend) 67 (-14) 64
Min RH % (24HR Trend) 41 (-15) 49
Min Temp (24HR Trend) 54 (-11) 43
Max RH % (24HR Trend) 94 (+17) 86
20FT Wind AM (MPH) N 9 NE 6-7
20FT Wind PM (MPH) N 7-8 N 9 Lgt/Var NE 6-7
Peak Wind Gusts (MPH) 18 19
Precip Amount (IN) 0.25-0.50 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 4100
Max Mixing Hgt (FT) 4700 4600
Transport Wnd (MPH) N 13 NE 9
Vent Rate (MPH-FT) 65800 41400
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the lower 60s. Southeast winds 5 to
10 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the mid 60s. South winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SATURDAY...Sunny. Highs in the upper 60s. East winds 5 to
10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. East
winds around 5 mph.
.SUNDAY...Sunny. Highs in the lower 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
INZ001-070915-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy mcldy clear clear
Precip Type tstms tstms None None
Chance Precip (%) 70 60
Max Temp (24HR Trend) 65 (-19) 63
Min RH % (24HR Trend) 66 (+16) 46
Min Temp (24HR Trend) 61 (-2) 45
Max RH % (24HR Trend) 96 (+11) 86
20FT Wind AM (MPH) N 11 NE 6-8
20FT Wind PM (MPH) SW 7 N 11 Lgt/Var NE 6-8
Peak Wind Gusts (MPH) 17 20 14
Precip Amount (IN) 0.25-0.50 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 2300 3600
Max Mixing Hgt (FT) 2900 4500
Transport Wnd (MPH) N 20 NE 14
Vent Rate (MPH-FT) 60900 67500
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows around 40. Northeast winds around
5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 40. 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. Light
winds, becoming southeast around 5 mph after midnight.
.SATURDAY...Sunny. Highs around 70. Northeast winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Northeast
winds around 5 mph, becoming southeast after midnight.
.SUNDAY...Sunny. Highs in the lower 70s. Southeast winds 5 to
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
INZ002-070915-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy mclear clear
Precip Type tstms tstms None None
Chance Precip (%) 70 60
Max Temp (24HR Trend) 65 (-18) 62
Min RH % (24HR Trend) 66 (+17) 43
Min Temp (24HR Trend) 61 (-2) 45
Max RH % (24HR Trend) 96 (+13) 87
20FT Wind AM (MPH) N 11-12 NE 6-7
20FT Wind PM (MPH) S 7-8 N 11-12 Lgt/Var NE 6-7
Peak Wind Gusts (MPH) 18 21
Precip Amount (IN) 0.25-0.50 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 2200 3300
Max Mixing Hgt (FT) 2900 4500
Transport Wnd (MPH) N 19 N 13
Vent Rate (MPH-FT) 58000 63000
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows around 40. North winds around
5 mph, becoming east after midnight.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows around 40. East winds around
5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds, becoming southeast around 5 mph after midnight.
.SATURDAY...Sunny. Highs in the upper 60s. Northeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Northeast
winds around 5 mph, becoming east after midnight.
.SUNDAY...Sunny. Highs in the lower 70s. Southeast winds 5 to
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
ILZ013-070915-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy pcldy clear mclear
Precip Type tstms showers None None
Chance Precip (%) 70 30
Max Temp (24HR Trend) 67 (-16) 64
Min RH % (24HR Trend) 45 (-6) 49
Min Temp (24HR Trend) 57 (-8) 45
Max RH % (24HR Trend) 92 (+15) 82
20FT Wind AM (MPH) N 9-10 NE 6-7
20FT Wind PM (MPH) NW 6-8 N 9-10 N 5 NE 6-7
Peak Wind Gusts (MPH) 15 17 13
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 2100 4500
Max Mixing Hgt (FT) 4400 4800
Transport Wnd (MPH) N 14 NE 11
Vent Rate (MPH-FT) 66000 57600
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the lower 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 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. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. North winds around
5 mph, becoming east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows in the lower 50s. East winds
around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ012-070915-
Kane-
Including the cities of Aurora and Elgin
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy pcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 70 30
Max Temp (24HR Trend) 67 (-15) 65
Min RH % (24HR Trend) 43 (-10) 43
Min Temp (24HR Trend) 55 (-7) 42
Max RH % (24HR Trend) 94 (+11) 85
20FT Wind AM (MPH) N 9-10 NE 6-7
20FT Wind PM (MPH) N 5-8 N 9-10 Lgt/Var NE 6-7
Peak Wind Gusts (MPH) 16 17
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 2200 4100
Max Mixing Hgt (FT) 4300 5000
Transport Wnd (MPH) N 14 NE 9
Vent Rate (MPH-FT) 64500 45000
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows around 40. East winds around
5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. Northeast winds around
5 mph, becoming east in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ005-070915-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy pcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 20
Max Temp (24HR Trend) 67 (-13) 64
Min RH % (24HR Trend) 41 (-17) 42
Min Temp (24HR Trend) 53 (-10) 40
Max RH % (24HR Trend) 95 (+14) 85
20FT Wind AM (MPH) N 9 NE 5-6
20FT Wind PM (MPH) N 6-8 N 9 Lgt/Var NE 5-6
Peak Wind Gusts (MPH) 15 16
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2400 3700
Max Mixing Hgt (FT) 4400 5000
Transport Wnd (MPH) N 16 NE 8
Vent Rate (MPH-FT) 70400 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...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...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. Southeast
winds around 5 mph in the evening, becoming light.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. East
winds around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the mid 50s. Southeast winds around 10 mph.
$$
ILZ004-070915-
Boone-
Including the city of Belvidere
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 60 10
Max Temp (24HR Trend) 67 (-13) 65
Min RH % (24HR Trend) 39 (-18) 36
Min Temp (24HR Trend) 53 (-9) 39
Max RH % (24HR Trend) 94 (+13) 88
20FT Wind AM (MPH) N 9 Lgt/Var
20FT Wind PM (MPH) N 7-8 N 9 Lgt/Var NE 4-5
Peak Wind Gusts (MPH) 15 16
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 3100
Max Mixing Hgt (FT) 4400 4800
Transport Wnd (MPH) N 16 NE 8
Vent Rate (MPH-FT) 70400 38400
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. East winds
around 5 mph in the evening, becoming light.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. South winds
around 5 mph in the evening, becoming light.
.SATURDAY...Sunny. Highs in the lower 70s. Northeast winds around
5 mph, becoming southeast in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. East
winds around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the mid 50s. Southeast winds around 10 mph.
$$
ILZ011-070915-
De Kalb-
Including the cities of DeKalb and Sycamore
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy pcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 20
Max Temp (24HR Trend) 68 (-14) 66
Min RH % (24HR Trend) 40 (-12) 37
Min Temp (24HR Trend) 54 (-6) 40
Max RH % (24HR Trend) 95 (+9) 88
20FT Wind AM (MPH) N 10-11 NE 6
20FT Wind PM (MPH) N 5-9 N 10-11 Lgt/Var NE 6
Peak Wind Gusts (MPH) 16 17
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 2300 3700
Max Mixing Hgt (FT) 4300 5000
Transport Wnd (MPH) N 16 NE 9
Vent Rate (MPH-FT) 68800 45000
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. East 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. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. Northeast winds around
5 mph, becoming east in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. East
winds around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ003-070915-
Winnebago-
Including the city of Rockford
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 60 10
Max Temp (24HR Trend) 67 (-12) 66
Min RH % (24HR Trend) 36 (-19) 29
Min Temp (24HR Trend) 52 (-11) 38
Max RH % (24HR Trend) 93 (+16) 90
20FT Wind AM (MPH) N 9 NE 5
20FT Wind PM (MPH) N 8 N 9 Lgt/Var NE 5
Peak Wind Gusts (MPH) 15 17
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 2700
Max Mixing Hgt (FT) 5000 4900
Transport Wnd (MPH) N 16 NE 6
Vent Rate (MPH-FT) 80000 34300
Vent Rate Category good poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds 5 to
10 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. East winds 5 to
10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. East
winds around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds 10 to
15 mph.
.SUNDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Lows in the mid 50s. Southeast winds around 10 mph.
$$
ILZ008-070915-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 60 10
Max Temp (24HR Trend) 69 (-12) 67
Min RH % (24HR Trend) 35 (-18) 29
Min Temp (24HR Trend) 52 (-10) 39
Max RH % (24HR Trend) 93 (+12) 89
20FT Wind AM (MPH) N 10 Lgt/Var
20FT Wind PM (MPH) N 8-9 N 10 Lgt/Var NE 4-5
Peak Wind Gusts (MPH) 16 17
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 2900
Max Mixing Hgt (FT) 5000 5100
Transport Wnd (MPH) N 16 NE 8
Vent Rate (MPH-FT) 80000 40800
Vent Rate Category good poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 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 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. East winds 5 to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. East
winds around 5 mph.
.SUNDAY...Sunny. Highs in the upper 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ010-070915-
Lee-
Including the city of Dixon
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy pcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 70 20
Max Temp (24HR Trend) 69 (-13) 68
Min RH % (24HR Trend) 36 (-15) 31
Min Temp (24HR Trend) 53 (-9) 39
Max RH % (24HR Trend) 95 (+12) 87
20FT Wind AM (MPH) N 10-11 Lgt/Var
20FT Wind PM (MPH) N 6-9 N 10-11 Lgt/Var NE 4-5
Peak Wind Gusts (MPH) 16 18
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 3200
Max Mixing Hgt (FT) 4900 5300
Transport Wnd (MPH) N 16 NE 8
Vent Rate (MPH-FT) 78400 42400
Vent Rate Category good poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. South winds
around 5 mph, becoming east after midnight.
.SATURDAY...Sunny. Highs in the mid 70s. Northeast winds around
5 mph, becoming east in the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows around 50. East winds
around 5 mph.
.SUNDAY...Sunny. Highs in the upper 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ019-070915-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy pcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 30
Max Temp (24HR Trend) 68 (-16) 67
Min RH % (24HR Trend) 45 (-1) 36
Min Temp (24HR Trend) 56 (-5) 41
Max RH % (24HR Trend) 95 (+10) 84
20FT Wind AM (MPH) N 9-10 NE 5-7
20FT Wind PM (MPH) Lgt/Var N 9-10 Lgt/Var NE 5-7
Peak Wind Gusts (MPH) 16 18
Precip Amount (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 2000 3800
Max Mixing Hgt (FT) 4100 5200
Transport Wnd (MPH) N 16 NE 11
Vent Rate (MPH-FT) 65600 62400
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. East winds
around 5 mph.
.THURSDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 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. Southeast
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.
.SUNDAY...Sunny. Highs in the upper 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ020-070915-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy pcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 70 30
Max Temp (24HR Trend) 68 (-16) 66
Min RH % (24HR Trend) 48 (-1) 42
Min Temp (24HR Trend) 56 (-6) 43
Max RH % (24HR Trend) 94 (+9) 84
20FT Wind AM (MPH) N 9-10 NE 6-7
20FT Wind PM (MPH) NW 5-8 N 9-10 Lgt/Var NE 6-7
Peak Wind Gusts (MPH) 16 18 14
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 1800 4200
Max Mixing Hgt (FT) 3800 5100
Transport Wnd (MPH) N 14 NE 11
Vent Rate (MPH-FT) 57000 61200
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows around 40. East winds around
5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. East winds
around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds around 10 mph.
$$
ILZ021-070915-
Grundy-
Including the cities of Morris, Coal City, and Minooka
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 30
Max Temp (24HR Trend) 67 (-18) 67
Min RH % (24HR Trend) 57 (+10) 43
Min Temp (24HR Trend) 58 (-3) 43
Max RH % (24HR Trend) 95 (+10) 87
20FT Wind AM (MPH) N 9 NE 5-7
20FT Wind PM (MPH) SW 6-7 N 9 Lgt/Var NE 5-7
Peak Wind Gusts (MPH) 18
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 1700 3900
Max Mixing Hgt (FT) 3500 5100
Transport Wnd (MPH) N 16 NE 12
Vent Rate (MPH-FT) 56000 66300
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. East 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 around 70. South winds around
5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph in the evening, becoming light.
.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.
.SUNDAY...Sunny. Highs in the upper 70s. Southeast winds 5 to
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s. Southeast
winds 5 to 10 mph.
$$
ILZ022-070915-
Will-
Including the cities of Joliet, Bolingbrook, and Wilmington
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover cloudy mcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 70 40
Max Temp (24HR Trend) 66 (-18) 65
Min RH % (24HR Trend) 58 (+8) 47
Min Temp (24HR Trend) 58 (-5) 44
Max RH % (24HR Trend) 95 (+11) 87
20FT Wind AM (MPH) N 9-10 NE 6-8
20FT Wind PM (MPH) SW 6-7 N 9-10 Lgt/Var NE 6-8
Peak Wind Gusts (MPH) 20 14
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 1900 4300
Max Mixing Hgt (FT) 3500 4800
Transport Wnd (MPH) N 16 NE 13
Vent Rate (MPH-FT) 56000 67200
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows around 40. East winds around
5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. Southeast winds around
5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.FRIDAY...Mostly sunny. Highs in the upper 60s. South winds
around 5 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 10 mph.
$$
ILZ032-070915-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 30
Max Temp (24HR Trend) 68 (-17) 68
Min RH % (24HR Trend) 63 (+17) 39
Min Temp (24HR Trend) 59 (0) 41
Max RH % (24HR Trend) 96 (+11) 89
20FT Wind AM (MPH) N 10 NE 5-8
20FT Wind PM (MPH) S 6 N 10 Lgt/Var NE 5-8
Peak Wind Gusts (MPH) 19 13
Precip Amount (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM Mixing Hgt (FT) 1700 3500
Max Mixing Hgt (FT) 2800 5000
Transport Wnd (MPH) N 16 NE 13
Vent Rate (MPH-FT) 44800 70000
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...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 upper 30s. 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. Southeast
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.
.SUNDAY...Sunny. Highs in the upper 70s. Southeast winds around
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds around 10 mph.
$$
ILZ023-070915-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 40
Max Temp (24HR Trend) 66 (-19) 66
Min RH % (24HR Trend) 70 (+22) 43
Min Temp (24HR Trend) 60 (-2) 43
Max RH % (24HR Trend) 96 (+10) 88
20FT Wind AM (MPH) N 9-10 NE 5-7
20FT Wind PM (MPH) S 6-8 N 9-10 Lgt/Var NE 5-7
Peak Wind Gusts (MPH) 18 20
Precip Amount (IN) 0.25-0.50 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 1800 3700
Max Mixing Hgt (FT) 2800 4800
Transport Wnd (MPH) N 17 NE 13
Vent Rate (MPH-FT) 47600 67200
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. Northeast winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. East winds
around 5 mph in the evening, becoming light.
.FRIDAY...Mostly sunny. Highs in the upper 60s. Light winds,
becoming south around 5 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Northeast
winds around 5 mph, becoming east after midnight.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds 5 to
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southeast
winds around 5 mph.
$$
ILZ039-070915-
Ford-
Including the cities of Paxton and Gibson City
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 30
Max Temp (24HR Trend) 69 (-16) 68
Min RH % (24HR Trend) 73 (+27) 35
Min Temp (24HR Trend) 61 (+1) 42
Max RH % (24HR Trend) 97 (+9) 88
20FT Wind AM (MPH) N 9-11 NE 6-8
20FT Wind PM (MPH) S 6-9 N 9-11 Lgt/Var NE 6-8
Peak Wind Gusts (MPH) 18 20 13
Precip Amount (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 1800 3100
Max Mixing Hgt (FT) 2300 5100
Transport Wnd (MPH) N 19 NE 12
Vent Rate (MPH-FT) 46000 66300
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...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 upper 30s. East winds
around 5 mph.
.FRIDAY...Sunny. Highs around 70. 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. East winds around 5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds 5 to
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s. Southeast
winds 5 to 10 mph.
$$
ILZ033-070915-
Iroquois-
Including the cities of Watseka and Gilman
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy clear clear
Precip Type tstms showers None None
Chance Precip (%) 60 50
Max Temp (24HR Trend) 68 (-17) 67
Min RH % (24HR Trend) 70 (+24) 35
Min Temp (24HR Trend) 62 (+1) 42
Max RH % (24HR Trend) 96 (+8) 87
20FT Wind AM (MPH) N 9-11 NE 5-7
20FT Wind PM (MPH) S 6-8 N 9-11 Lgt/Var NE 5-7
Peak Wind Gusts (MPH) 18 20
Precip Amount (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 2000 3200
Max Mixing Hgt (FT) 2500 5100
Transport Wnd (MPH) N 18 NE 12
Vent Rate (MPH-FT) 45000 66300
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. Northeast winds
around 5 mph.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. East winds
around 5 mph in the evening, becoming light.
.FRIDAY...Sunny. Highs in the upper 60s. Light winds.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Sunny. Highs in the lower 70s. East winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 50. Southeast winds
around 5 mph.
$$
INZ010-070915-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy clear clear
Precip Type tstms tstms None None
Chance Precip (%) 60 60
Max Temp (24HR Trend) 67 (-17) 65
Min RH % (24HR Trend) 68 (+20) 38
Min Temp (24HR Trend) 62 (+1) 44
Max RH % (24HR Trend) 97 (+5) 87
20FT Wind AM (MPH) N 9-11 NE 5-7
20FT Wind PM (MPH) S 7-9 N 9-11 Lgt/Var NE 5-7
Peak Wind Gusts (MPH) 19 20
Precip Amount (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 2000 3500
Max Mixing Hgt (FT) 2600 5000
Transport Wnd (MPH) N 19 NE 13
Vent Rate (MPH-FT) 52000 70000
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...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 in the upper 30s. East winds
around 5 mph in the evening, becoming light.
.FRIDAY...Sunny. Highs in the upper 60s. Light winds.
.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.
.SUNDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
$$
INZ011-070915-
Jasper-
Including the cities of Rensselaer and DeMotte
341 PM CDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy mclear clear
Precip Type tstms tstms None None
Chance Precip (%) 60 60
Max Temp (24HR Trend) 67 (-17) 64
Min RH % (24HR Trend) 65 (+17) 38
Min Temp (24HR Trend) 62 (0) 44
Max RH % (24HR Trend) 96 (+5) 88
20FT Wind AM (MPH) N 9-11 NE 5-7
20FT Wind PM (MPH) S 7-9 N 9-11 Lgt/Var NE 5-7
Peak Wind Gusts (MPH) 19 20
Precip Amount (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 2000 3600
Max Mixing Hgt (FT) 2700 5000
Transport Wnd (MPH) N 19 NE 13
Vent Rate (MPH-FT) 54000 70000
Vent Rate Category fair fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...Clear. Lows in the upper 30s. North winds
around 5 mph, becoming east after midnight.
.THURSDAY...Sunny. Highs in the mid 60s. East winds around 5 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 30s. East winds
around 5 mph in the evening, becoming light.
.FRIDAY...Sunny. Highs in the upper 60s. Light winds.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. Light winds.
.SATURDAY...Sunny. Highs in the lower 70s. Northeast winds around
5 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Northeast
winds around 5 mph, becoming east after midnight.
.SUNDAY...Sunny. Highs in the lower 70s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
$$
INZ019-070915-
Benton-
Including the cities of Fowler and Oxford
441 PM EDT Mon Oct 6 2025
Tonight Tue Tue Night Wed
Cloud Cover mcldy mcldy mclear clear
Precip Type tstms tstms None None
Chance Precip (%) 40 60
Max Temp (24HR Trend) 69 (-15) 66
Min RH % (24HR Trend) 67 (+18) 36
Min Temp (24HR Trend) 63 (+1) 44
Max RH % (24HR Trend) 96 (+8) 88
20FT Wind AM (MPH) NW 8-11 NE 5-7
20FT Wind PM (MPH) S 6-9 N 8-11 Lgt/Var NE 5-7
Peak Wind Gusts (MPH) 19 20
Precip Amount (IN) 0.05-0.10 0.05-0.10 0.00 0.00
11 AM Mixing Hgt (FT) 1900 3600
Max Mixing Hgt (FT) 2400 5000
Transport Wnd (MPH) N 19 NE 13
Vent Rate (MPH-FT) 48000 70000
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.WEDNESDAY NIGHT...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 in the upper 30s. East winds
around 5 mph in the evening, becoming light.
.FRIDAY...Sunny. Highs in the upper 60s. Light winds.
.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.
.SUNDAY...Sunny. Highs in the mid 70s. Southeast winds around
5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph.
$$