476
FNUS53 KLOT 250949
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
449 AM CDT TUE AUG 25 2026
DISCUSSION
WINDS WILL RETURN TO A PREVAILING SOUTHWEST DIRECTION TODAY,
REMAINING LIGHT. A WEAK LAKE BREEZE WILL TURN WINDS SOUTHEAST
ALONG THE IMMEDIATE ILLINOIS LAKESHORE THIS AFTERNOON BUT IS NOT
EXPECTED TO SURGE AS FAR INLAND AS YESTERDAY.
AFTERNOON RELATIVE HUMIDITY VALUES ARE FORECAST TO FALL INTO THE
40 TO 50 PERCENT RANGE WITH PEAK MIXING HEIGHTS IN THE 4000-5000
FT RANGE. HIGHER RELATIVE HUMIDITY AND LOWER MIXING HEIGHTS IS
EXPECTED NEAR THE ILLINOIS LAKESHORE BEHIND THE LAKE BREEZE.
WHILE A STRAY SHOWER OR STORM CAN'T BE RULED OUT NORTHWEST OF THE
CHICAGO METRO OVERNIGHT, GREATER SHOWER AND STORM COVERAGE IS
FAVORED WEDNESDAY AFTERNOON INTO EARLY EVENING, ESPECIALLY NEAR
AND EAST OF INTERSTATE 55 AND SOUTH OF I-80.
A BREAK IN THE SHOWER AND STORM CHANCES IS THEN FORECAST THROUGH
THE END OF THE WEEK.
ILZ014-252130-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE SHOWERS TSTMS NONE
CHANCE PRECIP (%) 20 30 10
MAX TEMP (24HR TREND) 81 (+4) 83
MIN RH % (24HR TREND) 41 (0) 59
MIN TEMP (24HR TREND) 63 (+5) 63
MAX RH % (24HR TREND) 88 (-3) 95
20FT WIND AM (MPH) LGT/VAR SW 9-10
20FT WIND PM (MPH) S 4-5 LGT/VAR W 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3800 2200
MAX MIXING HGT (FT) 5500 4600
TRANSPORT WND (MPH) S 6 W 16
VENT RATE (MPH-FT) 38500 73600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
LOWER 70S. SOUTH WINDS AROUND 10 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 70. SOUTH WINDS AROUND 5 MPH.
ILZ006-252130-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE SHOWERS TSTMS NONE
CHANCE PRECIP (%) 20 30
MAX TEMP (24HR TREND) 80 (+4) 82
MIN RH % (24HR TREND) 45 (-1) 60
MIN TEMP (24HR TREND) 63 (+7) 60
MAX RH % (24HR TREND) 92 (-6) 99
20FT WIND AM (MPH) LGT/VAR SW 9-10
20FT WIND PM (MPH) S 4-7 S 5-7 W 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3900 2200
MAX MIXING HGT (FT) 5400 4700
TRANSPORT WND (MPH) S 8 W 17
VENT RATE (MPH-FT) 43200 79900
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. EAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTH WINDS AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
INZ001-252130-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 10 50 10
MAX TEMP (24HR TREND) 78 (+2) 82
MIN RH % (24HR TREND) 48 (+3) 64
MIN TEMP (24HR TREND) 59 (+4) 61
MAX RH % (24HR TREND) 96 (-1) 100
20FT WIND AM (MPH) LGT/VAR SW 7-9
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 7-9 LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.00
11 AM MIXING HGT (FT) 3200 2100
MAX MIXING HGT (FT) 4800 4000
TRANSPORT WND (MPH) S 5 W 16
VENT RATE (MPH-FT) 28800 64000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
INZ002-252130-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 60 20
MAX TEMP (24HR TREND) 77 (+2) 81
MIN RH % (24HR TREND) 49 (+2) 65
MIN TEMP (24HR TREND) 58 (+4) 62
MAX RH % (24HR TREND) 95 (-3) 100
20FT WIND AM (MPH) LGT/VAR SW 7-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 7-8 LGT/VAR
PEAK WIND GUSTS (MPH) 16
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.00
11 AM MIXING HGT (FT) 3000 2000
MAX MIXING HGT (FT) 4500 3700
TRANSPORT WND (MPH) S 4 SW 17
VENT RATE (MPH-FT) 22500 62900
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ013-252130-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE SHOWERS TSTMS NONE
CHANCE PRECIP (%) 20 30 10
MAX TEMP (24HR TREND) 79 (0) 82
MIN RH % (24HR TREND) 43 (+4) 59
MIN TEMP (24HR TREND) 63 (+6) 63
MAX RH % (24HR TREND) 90 (-5) 96
20FT WIND AM (MPH) LGT/VAR SW 9-10
20FT WIND PM (MPH) SW 4-5 LGT/VAR W 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3800 2000
MAX MIXING HGT (FT) 5100 4400
TRANSPORT WND (MPH) SW 6 W 17
VENT RATE (MPH-FT) 35700 74800
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTH
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS AROUND
70. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ012-252130-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE SHOWERS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 78 (0) 82
MIN RH % (24HR TREND) 49 (+4) 60
MIN TEMP (24HR TREND) 62 (+7) 61
MAX RH % (24HR TREND) 92 (-8) 98
20FT WIND AM (MPH) LGT/VAR SW 9-11
20FT WIND PM (MPH) S 4-6 LGT/VAR W 9-11 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3500 1800
MAX MIXING HGT (FT) 4600 4100
TRANSPORT WND (MPH) SW 8 W 16
VENT RATE (MPH-FT) 36800 65600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTH
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. EAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ005-252130-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE TSTMS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 79 (+1) 81
MIN RH % (24HR TREND) 48 (+4) 61
MIN TEMP (24HR TREND) 62 (+7) 60
MAX RH % (24HR TREND) 93 (-7) 99
20FT WIND AM (MPH) LGT/VAR SW 9-10
20FT WIND PM (MPH) SW 4-6 LGT/VAR W 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3800 2100
MAX MIXING HGT (FT) 4800 4600
TRANSPORT WND (MPH) SW 8 W 18
VENT RATE (MPH-FT) 38400 82800
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
5 TO 10 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE LOWER 80S. SOUTH WINDS AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ004-252130-
BOONE-
INCLUDING THE CITY OF BELVIDERE
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR CLEAR
PRECIP TYPE NONE TSTMS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 79 (+2) 81
MIN RH % (24HR TREND) 48 (0) 58
MIN TEMP (24HR TREND) 62 (+8) 59
MAX RH % (24HR TREND) 95 (-5) 99
20FT WIND AM (MPH) LGT/VAR SW 8-10
20FT WIND PM (MPH) SW 4-6 LGT/VAR W 8-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3600 2200
MAX MIXING HGT (FT) 4800 4700
TRANSPORT WND (MPH) SW 10 W 17
VENT RATE (MPH-FT) 48000 79900
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTH WINDS AROUND 10 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE LOWER 80S. SOUTH WINDS AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ011-252130-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR CLEAR
PRECIP TYPE NONE TSTMS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 78 (0) 82
MIN RH % (24HR TREND) 50 (+3) 56
MIN TEMP (24HR TREND) 62 (+8) 60
MAX RH % (24HR TREND) 92 (-8) 99
20FT WIND AM (MPH) LGT/VAR SW 9-11
20FT WIND PM (MPH) S 4-6 LGT/VAR W 9-11 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3700 2000
MAX MIXING HGT (FT) 4500 4200
TRANSPORT WND (MPH) S 9 W 17
VENT RATE (MPH-FT) 40500 71400
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTH
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ003-252130-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR CLEAR
PRECIP TYPE NONE TSTMS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 80 (+2) 82
MIN RH % (24HR TREND) 48 (+6) 55
MIN TEMP (24HR TREND) 62 (+8) 59
MAX RH % (24HR TREND) 97 (-3) 99
20FT WIND AM (MPH) LGT/VAR SW 9-11
20FT WIND PM (MPH) SW 4-7 S 5-7 W 9-11 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3600 2400
MAX MIXING HGT (FT) 4800 4800
TRANSPORT WND (MPH) SW 10 W 17
VENT RATE (MPH-FT) 48000 81600
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTHEAST
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTH WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTH WINDS AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ008-252130-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR CLEAR
PRECIP TYPE NONE TSTMS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 79 (+1) 82
MIN RH % (24HR TREND) 51 (+7) 55
MIN TEMP (24HR TREND) 63 (+9) 60
MAX RH % (24HR TREND) 96 (-4) 98
20FT WIND AM (MPH) LGT/VAR SW 8-11
20FT WIND PM (MPH) S 4-7 LGT/VAR W 8-11 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3600 2200
MAX MIXING HGT (FT) 4500 4600
TRANSPORT WND (MPH) S 9 W 18
VENT RATE (MPH-FT) 40500 82800
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTH WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTH WINDS 10 TO 15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 10 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ010-252130-
LEE-
INCLUDING THE CITY OF DIXON
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR CLEAR
PRECIP TYPE NONE TSTMS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 78 (-1) 83
MIN RH % (24HR TREND) 52 (+10) 55
MIN TEMP (24HR TREND) 63 (+8) 60
MAX RH % (24HR TREND) 93 (-7) 99
20FT WIND AM (MPH) LGT/VAR SW 8-10
20FT WIND PM (MPH) S 4-6 LGT/VAR W 8-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3400 2100
MAX MIXING HGT (FT) 4400 4600
TRANSPORT WND (MPH) S 9 W 18
VENT RATE (MPH-FT) 39600 82800
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 10 TO
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY. HIGHS
IN THE MID 80S. SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ019-252130-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR CLEAR
PRECIP TYPE NONE SHOWERS TSTMS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 79 (0) 83
MIN RH % (24HR TREND) 51 (+6) 55
MIN TEMP (24HR TREND) 63 (+6) 62
MAX RH % (24HR TREND) 89 (-9) 94
20FT WIND AM (MPH) LGT/VAR SW 7-10
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 7-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3100 2000
MAX MIXING HGT (FT) 4500 4000
TRANSPORT WND (MPH) S 6 W 16
VENT RATE (MPH-FT) 31500 64000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE UPPER 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ020-252130-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE SHOWERS TSTMS NONE
CHANCE PRECIP (%) 20 30
MAX TEMP (24HR TREND) 78 (-1) 83
MIN RH % (24HR TREND) 51 (+8) 59
MIN TEMP (24HR TREND) 62 (+7) 62
MAX RH % (24HR TREND) 92 (-8) 97
20FT WIND AM (MPH) LGT/VAR SW 8-10
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 8-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.00
11 AM MIXING HGT (FT) 2800 1900
MAX MIXING HGT (FT) 4600 3200
TRANSPORT WND (MPH) S 6 W 16
VENT RATE (MPH-FT) 32200 51200
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ021-252130-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 10 30 10
MAX TEMP (24HR TREND) 79 (0) 84
MIN RH % (24HR TREND) 50 (+7) 60
MIN TEMP (24HR TREND) 63 (+7) 63
MAX RH % (24HR TREND) 89 (-10) 96
20FT WIND AM (MPH) LGT/VAR SW 7-9
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 7-9 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3100 2000
MAX MIXING HGT (FT) 4700 3800
TRANSPORT WND (MPH) S 5 W 16
VENT RATE (MPH-FT) 28200 60800
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE UPPER 80S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 5 MPH.
ILZ022-252130-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 10 30 10
MAX TEMP (24HR TREND) 78 (-1) 83
MIN RH % (24HR TREND) 49 (+7) 63
MIN TEMP (24HR TREND) 61 (+6) 62
MAX RH % (24HR TREND) 92 (-6) 99
20FT WIND AM (MPH) LGT/VAR SW 7-9
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 7-9 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.00
11 AM MIXING HGT (FT) 3000 1900
MAX MIXING HGT (FT) 4700 3300
TRANSPORT WND (MPH) SW 5 W 17
VENT RATE (MPH-FT) 28200 56100
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTH
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ032-252130-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY CLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 10 40 10
MAX TEMP (24HR TREND) 78 (-1) 84
MIN RH % (24HR TREND) 51 (+3) 62
MIN TEMP (24HR TREND) 62 (+6) 62
MAX RH % (24HR TREND) 90 (-8) 99
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.00
11 AM MIXING HGT (FT) 3200 2000
MAX MIXING HGT (FT) 4500 4000
TRANSPORT WND (MPH) S 5 W 17
VENT RATE (MPH-FT) 27000 68000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH.
ILZ023-252130-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 10 50 10
MAX TEMP (24HR TREND) 78 (0) 83
MIN RH % (24HR TREND) 50 (+4) 62
MIN TEMP (24HR TREND) 59 (+5) 61
MAX RH % (24HR TREND) 95 (-4) 99
20FT WIND AM (MPH) LGT/VAR SW 6-7
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 6-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.00
11 AM MIXING HGT (FT) 2800 2000
MAX MIXING HGT (FT) 4700 3600
TRANSPORT WND (MPH) S 4 W 18
VENT RATE (MPH-FT) 23500 64800
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
ILZ039-252130-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 50 10
MAX TEMP (24HR TREND) 78 (0) 84
MIN RH % (24HR TREND) 52 (+3) 63
MIN TEMP (24HR TREND) 61 (+5) 62
MAX RH % (24HR TREND) 91 (-5) 100
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.00
11 AM MIXING HGT (FT) 3300 1900
MAX MIXING HGT (FT) 4500 3800
TRANSPORT WND (MPH) S 4 W 17
VENT RATE (MPH-FT) 22500 64600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS 5 TO
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH.
ILZ033-252130-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 78 (0) 83
MIN RH % (24HR TREND) 49 (+2) 60
MIN TEMP (24HR TREND) 59 (+4) 61
MAX RH % (24HR TREND) 94 (-2) 99
20FT WIND AM (MPH) LGT/VAR SW 5-6
20FT WIND PM (MPH) LGT/VAR LGT/VAR W 5-6 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.00
11 AM MIXING HGT (FT) 3000 2000
MAX MIXING HGT (FT) 4600 3600
TRANSPORT WND (MPH) S 3 W 14
VENT RATE (MPH-FT) 13800 54000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
INZ010-252130-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 78 (+2) 82
MIN RH % (24HR TREND) 50 (+5) 61
MIN TEMP (24HR TREND) 58 (+5) 61
MAX RH % (24HR TREND) 97 (-3) 100
20FT WIND AM (MPH) LGT/VAR SW 5-7
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.00
11 AM MIXING HGT (FT) 2900 2000
MAX MIXING HGT (FT) 4600 3500
TRANSPORT WND (MPH) S 4 SW 18
VENT RATE (MPH-FT) 23000 63000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
INZ011-252130-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
449 AM CDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 77 (+1) 82
MIN RH % (24HR TREND) 50 (+6) 62
MIN TEMP (24HR TREND) 58 (+6) 61
MAX RH % (24HR TREND) 96 (-4) 100
20FT WIND AM (MPH) LGT/VAR SW 6-7
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 6-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.00
11 AM MIXING HGT (FT) 2700 1900
MAX MIXING HGT (FT) 4600 3600
TRANSPORT WND (MPH) S 3 SW 17
VENT RATE (MPH-FT) 13800 61200
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
INZ019-252130-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
549 AM EDT TUE AUG 25 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 60 20
MAX TEMP (24HR TREND) 77 (0) 82
MIN RH % (24HR TREND) 53 (+9) 62
MIN TEMP (24HR TREND) 59 (+6) 62
MAX RH % (24HR TREND) 92 (-7) 100
20FT WIND AM (MPH) LGT/VAR SW 5-6
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 5-6 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.00
11 AM MIXING HGT (FT) 2800 1800
MAX MIXING HGT (FT) 4400 3600
TRANSPORT WND (MPH) S 3 SW 16
VENT RATE (MPH-FT) 13200 57600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH.
PETR
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