Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
106
FNUS53 KLOT 012138
FWFLOT
Fire Weather Planning Forecast For Northern IL and Northwest IN
National Weather Service Chicago/Romeoville IL
438 PM CDT Thu Oct 1 2026
.DISCUSSION...
Widespread rain will continue across northern IL and northwest IN
along and ahead of a cold front through tonight. Though, rain will
begin to taper from northwest to southeast after midnight. Locally
heavy rainfall will be possible, especially near the I-80
corridor, in addition to a 20% chance for an isolated rumble of
thunder. Additional rainfall amounts of 1-2 inches are expected
with the heaviest rainfall.
A multi-day break from measurable rainfall chances begins Friday
and continues through at least early next week with seasonably
cool temperatures in the 60s to lower 70s. Lower afternoon
relative humidity levels in the 30-50 percent range are also
forecast by the weekend away from the lakeshore.
ILZ014-020930-
Cook-
Including the cities of Chicago, Schaumburg, Evanston, Oak Lawn,
Lemont, Orland Park, and Park Forest
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear mclear clear
Precip Type rain None None None
Chance Precip (%) 90
Max Temp (24HR Trend) 64 (-8) 66
Min RH % (24HR Trend) 57 (-25) 52
Min Temp (24HR Trend) 52 (-12) 45
Max RH % (24HR Trend) 99 (+1) 98
20FT Wind AM (MPH) N 9-10 E 5
20FT Wind PM (MPH) N 9 N 9-10 Lgt/Var SE 5
Peak Wind Gusts (MPH) 24 23
Precip Amount (IN) 0.50-0.75 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 3300 2800
Max Mixing Hgt (FT) 3500 4700
Transport Wnd (MPH) N 13 SE 9
Vent Rate (MPH-FT) 49000 42300
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. East winds
around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs around 70. Southwest winds around 5 mph,
becoming west in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the lower 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the mid 40s. Northeast winds
around 5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs around 70. Southwest winds
around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s.
Southwest winds around 5 mph.
$$
ILZ006-020930-
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Mundelein,
and Gurnee
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear mclear clear
Precip Type rain None None None
Chance Precip (%) 70
Max Temp (24HR Trend) 64 (-5) 65
Min RH % (24HR Trend) 54 (-37) 55
Min Temp (24HR Trend) 48 (-16) 43
Max RH % (24HR Trend) 100 (0) 100
20FT Wind AM (MPH) N 8-9 E 5-6
20FT Wind PM (MPH) N 7-9 N 8-9 Lgt/Var SE 5-6
Peak Wind Gusts (MPH) 24 21
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 2800
Max Mixing Hgt (FT) 3600 4100
Transport Wnd (MPH) N 12 SE 10
Vent Rate (MPH-FT) 46800 41000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph, becoming south after midnight.
.SUNDAY...Sunny. Highs around 70. Southwest winds around 5 mph,
becoming northwest in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the lower 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs around 70. Southwest winds
around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph.
$$
INZ001-020930-
Lake IN-
Including the cities of Gary, Hammond, and Merrillville
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy pcldy clear clear
Precip Type rain None None None
Chance Precip (%) 100
Max Temp (24HR Trend) 65 (-12) 67
Min RH % (24HR Trend) 62 (-5) 52
Min Temp (24HR Trend) 56 (-7) 44
Max RH % (24HR Trend) 100 (+5) 99
20FT Wind AM (MPH) NE 10-11 Lgt/Var
20FT Wind PM (MPH) N 8-10 N 10-11 Lgt/Var E 4-5
Peak Wind Gusts (MPH) 24 23
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 3500 2400
Max Mixing Hgt (FT) 3600 4000
Transport Wnd (MPH) N 17 E 10
Vent Rate (MPH-FT) 61200 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs around 70. Light winds, becoming west
around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. North winds
around 5 mph.
.MONDAY...Sunny. Highs in the lower 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. South winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Southwest winds around 5 mph in the evening, becoming light.
$$
INZ002-020930-
Porter-
Including the cities of Portage, Valparaiso, and Chesterton
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy pcldy clear clear
Precip Type rain None None None
Chance Precip (%) 100
Max Temp (24HR Trend) 65 (-13) 67
Min RH % (24HR Trend) 59 (-4) 50
Min Temp (24HR Trend) 56 (-7) 44
Max RH % (24HR Trend) 100 (+4) 97
20FT Wind AM (MPH) NE 10-11 Lgt/Var
20FT Wind PM (MPH) N 8-10 N 10-11 Lgt/Var E 4-5
Peak Wind Gusts (MPH) 25 23
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 3300 2400
Max Mixing Hgt (FT) 3500 4000
Transport Wnd (MPH) N 16 E 10
Vent Rate (MPH-FT) 56000 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs in the upper 60s. Southwest winds around
5 mph, becoming west in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the upper 40s. North winds
around 5 mph.
.MONDAY...Sunny. Highs in the lower 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. South winds 5 to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Southwest winds around 5 mph.
$$
ILZ013-020930-
DuPage-
Including the cities of Naperville, Wheaton, Downers Grove,
Lombard, and Carol Stream
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear mclear clear
Precip Type rain None None None
Chance Precip (%) 80
Max Temp (24HR Trend) 64 (-8) 66
Min RH % (24HR Trend) 57 (-28) 54
Min Temp (24HR Trend) 51 (-12) 44
Max RH % (24HR Trend) 99 (0) 98
20FT Wind AM (MPH) N 9 Lgt/Var
20FT Wind PM (MPH) N 8-9 N 9 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.25-0.50 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 2800
Max Mixing Hgt (FT) 3600 4600
Transport Wnd (MPH) N 12 SE 10
Vent Rate (MPH-FT) 46800 46000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs around 70. Southwest winds around 5 mph,
becoming northwest in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the lower 40s. Northeast winds
around 5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50. West winds
around 5 mph.
$$
ILZ012-020930-
Kane-
Including the cities of Aurora and Elgin
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear mclear clear
Precip Type rain None None None
Chance Precip (%) 70
Max Temp (24HR Trend) 64 (-7) 66
Min RH % (24HR Trend) 53 (-36) 53
Min Temp (24HR Trend) 49 (-14) 43
Max RH % (24HR Trend) 99 (-1) 100
20FT Wind AM (MPH) N 8-10 Lgt/Var
20FT Wind PM (MPH) N 8-9 N 8-10 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 14 17
Precip Amount (IN) 0.25-0.50 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2200 2600
Max Mixing Hgt (FT) 3500 3800
Transport Wnd (MPH) N 12 SE 10
Vent Rate (MPH-FT) 45500 38000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs around 70. West winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds 5 to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph.
$$
ILZ005-020930-
McHenry-
Including the cities of Crystal Lake, Algonquin, McHenry,
and Woodstock
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear clear clear
Precip Type rain None None None
Chance Precip (%) 60
Max Temp (24HR Trend) 63 (-5) 66
Min RH % (24HR Trend) 55 (-39) 55
Min Temp (24HR Trend) 47 (-16) 42
Max RH % (24HR Trend) 100 (+1) 100
20FT Wind AM (MPH) N 8-9 Lgt/Var
20FT Wind PM (MPH) N 7-9 N 8-9 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 2800
Max Mixing Hgt (FT) 3500 4000
Transport Wnd (MPH) N 12 SE 11
Vent Rate (MPH-FT) 45500 48000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs in the upper 60s. West winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph
in the morning, becoming light.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
$$
ILZ004-020930-
Boone-
Including the city of Belvidere
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear clear clear
Precip Type rain None None None
Chance Precip (%) 50
Max Temp (24HR Trend) 63 (-4) 66
Min RH % (24HR Trend) 54 (-40) 53
Min Temp (24HR Trend) 47 (-16) 44
Max RH % (24HR Trend) 99 (0) 93
20FT Wind AM (MPH) N 8-9 Lgt/Var
20FT Wind PM (MPH) N 6-9 N 8-9 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.05-0.10 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 2700
Max Mixing Hgt (FT) 3300 4000
Transport Wnd (MPH) N 12 SE 12
Vent Rate (MPH-FT) 42900 52000
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs in the upper 60s. Northwest winds 5 to
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 40. Northwest winds
around 5 mph in the evening, becoming light.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph
in the morning, becoming light.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds 5 to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
$$
ILZ011-020930-
De Kalb-
Including the cities of DeKalb and Sycamore
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear clear clear
Precip Type rain None None None
Chance Precip (%) 70
Max Temp (24HR Trend) 64 (-6) 66
Min RH % (24HR Trend) 50 (-41) 49
Min Temp (24HR Trend) 49 (-13) 43
Max RH % (24HR Trend) 99 (-1) 98
20FT Wind AM (MPH) N 8-10 E 5
20FT Wind PM (MPH) N 8-9 N 8-10 Lgt/Var SE 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) 2200 2400
Max Mixing Hgt (FT) 3400 3300
Transport Wnd (MPH) N 12 SE 11
Vent Rate (MPH-FT) 44200 39600
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs in the lower 70s. West winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West
winds around 5 mph.
$$
ILZ003-020930-
Winnebago-
Including the city of Rockford
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy clear clear clear
Precip Type rain None None None
Chance Precip (%) 40
Max Temp (24HR Trend) 63 (-3) 66
Min RH % (24HR Trend) 51 (-42) 51
Min Temp (24HR Trend) 47 (-16) 43
Max RH % (24HR Trend) 99 (0) 93
20FT Wind AM (MPH) N 8-9 Lgt/Var
20FT Wind PM (MPH) N 6-9 N 8-9 Lgt/Var SE 4-6
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.01-0.05 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2600 2600
Max Mixing Hgt (FT) 3200 4000
Transport Wnd (MPH) N 12 SE 12
Vent Rate (MPH-FT) 41600 52000
Vent Rate Category poor fair
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs around 70. Northwest winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows around 40. Northwest winds
around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph
in the morning, becoming light.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the mid 60s. South winds 5 to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
$$
ILZ008-020930-
Ogle-
Including the cities of Rochelle, Oregon, and Byron
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy clear clear clear
Precip Type rain None None None
Chance Precip (%) 50
Max Temp (24HR Trend) 64 (-4) 67
Min RH % (24HR Trend) 50 (-44) 50
Min Temp (24HR Trend) 48 (-15) 41
Max RH % (24HR Trend) 98 (-2) 99
20FT Wind AM (MPH) N 8-9 Lgt/Var
20FT Wind PM (MPH) N 8-10 N 8-9 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 16
Precip Amount (IN) 0.05-0.10 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2300 2400
Max Mixing Hgt (FT) 3200 3500
Transport Wnd (MPH) N 12 SE 11
Vent Rate (MPH-FT) 41600 42000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs around 70. West winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph
in the morning, becoming light.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. West
winds around 5 mph in the evening, becoming light.
$$
ILZ010-020930-
Lee-
Including the city of Dixon
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear clear clear
Precip Type rain None None None
Chance Precip (%) 60
Max Temp (24HR Trend) 65 (-6) 67
Min RH % (24HR Trend) 48 (-44) 48
Min Temp (24HR Trend) 49 (-14) 41
Max RH % (24HR Trend) 99 (-1) 100
20FT Wind AM (MPH) N 8-9 Lgt/Var
20FT Wind PM (MPH) N 8-9 N 8-9 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 15 17
Precip Amount (IN) 0.10-0.25 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2200 1900
Max Mixing Hgt (FT) 3300 3100
Transport Wnd (MPH) N 12 SE 10
Vent Rate (MPH-FT) 42900 31000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the lower 70s. West winds around 5 mph,
becoming northwest in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Light winds, becoming east
around 5 mph after midnight.
.TUESDAY...Sunny. Highs in the upper 60s. South winds 5 to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 50. West winds
around 5 mph in the evening, becoming light.
$$
ILZ019-020930-
La Salle-
Including the cities of Ottawa, Streator, La Salle, Mendota,
and Marseilles
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear clear clear
Precip Type rain None None None
Chance Precip (%) 90
Max Temp (24HR Trend) 67 (-6) 69
Min RH % (24HR Trend) 47 (-33) 44
Min Temp (24HR Trend) 52 (-11) 44
Max RH % (24HR Trend) 99 (-1) 98
20FT Wind AM (MPH) N 9-10 Lgt/Var
20FT Wind PM (MPH) N 9-10 N 9-10 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 18
Precip Amount (IN) 0.25-0.50 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 1900 2000
Max Mixing Hgt (FT) 3500 4000
Transport Wnd (MPH) N 12 SE 10
Vent Rate (MPH-FT) 45500 40000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
.SUNDAY...Sunny. Highs in the lower 70s. West winds around 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. South winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the upper 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the mid 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows around 50. Southwest winds
around 5 mph in the evening, becoming light.
$$
ILZ020-020930-
Kendall-
Including the cities of Oswego, Yorkville, and Plano
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear mclear clear
Precip Type rain None None None
Chance Precip (%) 90
Max Temp (24HR Trend) 66 (-6) 68
Min RH % (24HR Trend) 53 (-31) 51
Min Temp (24HR Trend) 52 (-11) 43
Max RH % (24HR Trend) 99 (-1) 100
20FT Wind AM (MPH) N 9 Lgt/Var
20FT Wind PM (MPH) N 9 N 9 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 17 17
Precip Amount (IN) 0.50-0.75 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2000 2200
Max Mixing Hgt (FT) 3500 4000
Transport Wnd (MPH) N 12 SE 10
Vent Rate (MPH-FT) 45500 40000
Vent Rate Category poor poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs in the lower 70s. West winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Northeast winds around
5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the upper 60s. South winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds around 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. West
winds around 5 mph.
$$
ILZ021-020930-
Grundy-
Including the cities of Morris, Coal City, and Minooka
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear mclear clear
Precip Type rain None None None
Chance Precip (%) 100
Max Temp (24HR Trend) 68 (-7) 69
Min RH % (24HR Trend) 53 (-22) 49
Min Temp (24HR Trend) 53 (-11) 44
Max RH % (24HR Trend) 100 (0) 99
20FT Wind AM (MPH) N 9 Lgt/Var
20FT Wind PM (MPH) N 8-10 N 9 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 17
Precip Amount (IN) 0.50-0.75 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2200 2400
Max Mixing Hgt (FT) 3700 4000
Transport Wnd (MPH) N 13 SE 10
Vent Rate (MPH-FT) 51800 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the lower 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the mid 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
$$
ILZ022-020930-
Will-
Including the cities of Joliet, Bolingbrook, and Wilmington
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear mclear clear
Precip Type rain None None None
Chance Precip (%) 100
Max Temp (24HR Trend) 66 (-9) 68
Min RH % (24HR Trend) 56 (-20) 51
Min Temp (24HR Trend) 54 (-10) 44
Max RH % (24HR Trend) 100 (+1) 100
20FT Wind AM (MPH) N 10 Lgt/Var
20FT Wind PM (MPH) N 8-9 N 10 Lgt/Var SE 4-5
Peak Wind Gusts (MPH) 15 19
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 3000 2400
Max Mixing Hgt (FT) 3800 4000
Transport Wnd (MPH) N 13 SE 10
Vent Rate (MPH-FT) 53200 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. East winds
around 5 mph in the evening, becoming light.
.SUNDAY...Sunny. Highs in the lower 70s. West winds around 5 mph.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest
winds around 5 mph.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows around 40. Northeast winds around
5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the upper 60s. South winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Mostly sunny. Highs in the lower 70s. Southwest
winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s.
Southwest winds around 5 mph in the evening, becoming light.
$$
ILZ032-020930-
Livingston-
Including the cities of Pontiac, Dwight, and Fairbury
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear clear clear
Precip Type tstms None None None
Chance Precip (%) 100 10
Max Temp (24HR Trend) 68 (-11) 70
Min RH % (24HR Trend) 55 (-6) 47
Min Temp (24HR Trend) 54 (-10) 45
Max RH % (24HR Trend) 100 (+1) 96
20FT Wind AM (MPH) N 10 Lgt/Var
20FT Wind PM (MPH) N 9-10 N 10 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 18
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2400 2100
Max Mixing Hgt (FT) 3700 4000
Transport Wnd (MPH) N 14 E 10
Vent Rate (MPH-FT) 55500 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the mid 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs around 70. Southeast winds around 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
$$
ILZ023-020930-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy mclear clear clear
Precip Type tstms None None None
Chance Precip (%) 100 10
Max Temp (24HR Trend) 67 (-12) 68
Min RH % (24HR Trend) 59 (0) 49
Min Temp (24HR Trend) 55 (-9) 44
Max RH % (24HR Trend) 100 (+2) 99
20FT Wind AM (MPH) N 9-10 Lgt/Var
20FT Wind PM (MPH) N 8-9 NE 9-10 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 18
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 3300 2500
Max Mixing Hgt (FT) 3900 4000
Transport Wnd (MPH) N 14 E 10
Vent Rate (MPH-FT) 58500 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the lower 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds
around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
$$
ILZ039-020930-
Ford-
Including the cities of Paxton and Gibson City
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 100 10
Max Temp (24HR Trend) 68 (-15) 70
Min RH % (24HR Trend) 55 (+7) 44
Min Temp (24HR Trend) 56 (-10) 45
Max RH % (24HR Trend) 100 (+7) 93
20FT Wind AM (MPH) N 10-11 Lgt/Var
20FT Wind PM (MPH) NW 9 NE 10-11 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 19
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2500 2500
Max Mixing Hgt (FT) 3800 4000
Transport Wnd (MPH) N 16 E 10
Vent Rate (MPH-FT) 60800 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the mid 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. North winds
around 5 mph.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Northeast winds
around 5 mph.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. Southeast
winds around 5 mph.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Southwest
winds around 5 mph in the evening, becoming light.
$$
ILZ033-020930-
Iroquois-
Including the cities of Watseka and Gilman
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 100 10
Max Temp (24HR Trend) 67 (-16) 69
Min RH % (24HR Trend) 53 (+8) 43
Min Temp (24HR Trend) 56 (-10) 45
Max RH % (24HR Trend) 100 (+7) 94
20FT Wind AM (MPH) NE 10-11 Lgt/Var
20FT Wind PM (MPH) NW 8-9 NE 10-11 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 15 19
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2800 2600
Max Mixing Hgt (FT) 3900 4000
Transport Wnd (MPH) N 16 E 10
Vent Rate (MPH-FT) 62400 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the lower 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Light winds, becoming
southeast around 5 mph in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. Light
winds.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
$$
INZ010-020930-
Newton-
Including the cities of Roselawn, Kentland, and Morocco
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 100 10
Max Temp (24HR Trend) 66 (-16) 68
Min RH % (24HR Trend) 57 (+10) 46
Min Temp (24HR Trend) 57 (-8) 44
Max RH % (24HR Trend) 100 (+5) 98
20FT Wind AM (MPH) NE 10-11 Lgt/Var
20FT Wind PM (MPH) NW 8 N 10-11 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 19
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2800 2600
Max Mixing Hgt (FT) 3700 4000
Transport Wnd (MPH) N 16 E 10
Vent Rate (MPH-FT) 59200 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the lower 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Light winds, becoming
southeast around 5 mph in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. Light
winds, becoming south around 5 mph after midnight.
.WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds around
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
$$
INZ011-020930-
Jasper-
Including the cities of Rensselaer and DeMotte
438 PM CDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 100 10
Max Temp (24HR Trend) 67 (-15) 68
Min RH % (24HR Trend) 57 (+9) 47
Min Temp (24HR Trend) 57 (-7) 43
Max RH % (24HR Trend) 100 (+5) 99
20FT Wind AM (MPH) NE 10-11 Lgt/Var
20FT Wind PM (MPH) NW 8 N 10-11 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 18
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2700 2700
Max Mixing Hgt (FT) 3600 4000
Transport Wnd (MPH) N 16 E 10
Vent Rate (MPH-FT) 57600 40000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the lower 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the mid 60s. North winds around 5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. Light winds.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. Southeast
winds around 5 mph.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 40s. Light
winds.
$$
INZ019-020930-
Benton-
Including the cities of Fowler and Oxford
538 PM EDT Thu Oct 1 2026
Tonight Fri Fri Night Sat
Cloud Cover cloudy pcldy clear clear
Precip Type tstms None None None
Chance Precip (%) 100 20
Max Temp (24HR Trend) 66 (-17) 68
Min RH % (24HR Trend) 56 (+9) 47
Min Temp (24HR Trend) 58 (-9) 45
Max RH % (24HR Trend) 100 (+13) 96
20FT Wind AM (MPH) NE 10-11 Lgt/Var
20FT Wind PM (MPH) NW 7-9 N 10-11 Lgt/Var Lgt/Var
Peak Wind Gusts (MPH) 17 18
Precip Amount (IN) 0.75-1.00 0.00 0.00 0.00
11 AM Mixing Hgt (FT) 2100 2700
Max Mixing Hgt (FT) 3500 4000
Transport Wnd (MPH) N 16 E 11
Vent Rate (MPH-FT) 56000 48000
Vent Rate Category fair poor
.FORECAST FOR DAYS 3 THROUGH 7...
(WINDS ARE 20 FT LEVEL)
.SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.SUNDAY...Sunny. Highs in the lower 70s. Light winds, becoming
northwest around 5 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows in the mid 40s. Light winds.
.MONDAY...Sunny. Highs in the upper 60s. North winds around
5 mph.
.MONDAY NIGHT...Clear. Lows in the upper 30s. North winds around
5 mph in the evening, becoming light.
.TUESDAY...Sunny. Highs in the upper 60s. Southeast winds around
5 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the lower 40s. Light
winds.
.WEDNESDAY...Sunny. Highs in the lower 70s. Southwest winds
around 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 40s. Light
winds.
$$
Yack