010
FNUS53 KLOT 030917
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
417 AM CDT THU SEP 3 2026
DISCUSSION
A HOT AND HUMID AIRMASS REMAINS IN PLACE ACROSS THE AREA.
LOCALIZED RELIEF MAY TAKE PLACE TODAY PARTICULARLY ACROSS
NORTHEASTERN ILLINOIS IN THE VICINITY OF THUNDERSTORMS OR AN
OUTFLOW BOUNDARY. FRIDAY MAY BE HOT AND HUMID AGAIN FOR PARTS OF
THE AREA BEFORE THE PATTERN BREAKS ON SATURDAY.
AFTER A BRIEF RETURN TO SEASONABLE WEATHER SUNDAY AND MONDAY,
TEMPERATURES AND HUMIDITY LEVELS MAY RISE AGAIN BY THE MIDDLE OF
NEXT WEEK.
ILZ014-032115-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
417 AM CDT THU SEP 3 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 40 50 50
MAX TEMP (24HR TREND) 96 (+1) 92
MIN RH % (24HR TREND) 43 (-3) 52
MIN TEMP (24HR TREND) 71 (-6) 72
MAX RH % (24HR TREND) 94 (+8) 94
20FT WIND AM (MPH) SW 7 S 7
20FT WIND PM (MPH) W 7 SE 5-7 W 7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.05-0.10 0.10-0.25 0.01-0.05 0.25-0.50
11 AM MIXING HGT (FT) 2200 1900
MAX MIXING HGT (FT) 5500 4200
TRANSPORT WND (MPH) SW 13 SW 10
VENT RATE (MPH-FT) 77000 42000
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 10 MPH.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
ILZ006-032115-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
417 AM CDT THU SEP 3 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 60 50 50
MAX TEMP (24HR TREND) 92 (-1) 87
MIN RH % (24HR TREND) 50 (0) 65
MIN TEMP (24HR TREND) 69 (-7) 70
MAX RH % (24HR TREND) 96 (+7) 100
20FT WIND AM (MPH) SW 7 S 7
20FT WIND PM (MPH) S 7 SE 6 S 7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.05-0.10 0.25-0.50 0.05-0.10 0.25-0.50
11 AM MIXING HGT (FT) 1800 1600
MAX MIXING HGT (FT) 3700 3900
TRANSPORT WND (MPH) W 13 SW 10
VENT RATE (MPH-FT) 51800 39000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE MID 60S. WEST WINDS AROUND 5 MPH.
INZ001-032115-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 30 40 50
MAX TEMP (24HR TREND) 95 (+1) 91
MIN RH % (24HR TREND) 45 (-6) 54
MIN TEMP (24HR TREND) 72 (-4) 72
MAX RH % (24HR TREND) 92 (+10) 94
20FT WIND AM (MPH) SW 7-8 SW 5-7
20FT WIND PM (MPH) W 7-8 SE 5-6 W 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.01-0.05 0.25-0.50
11 AM MIXING HGT (FT) 2200 1800
MAX MIXING HGT (FT) 5600 3800
TRANSPORT WND (MPH) SW 13 W 11
VENT RATE (MPH-FT) 78400 45600
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS AROUND
5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS 5 TO
10 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
INZ002-032115-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 40 50
MAX TEMP (24HR TREND) 95 (+2) 91
MIN RH % (24HR TREND) 46 (-7) 54
MIN TEMP (24HR TREND) 71 (-5) 72
MAX RH % (24HR TREND) 91 (+11) 93
20FT WIND AM (MPH) SW 6-7 SW 5-7
20FT WIND PM (MPH) W 6-7 SE 5-6 W 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.05-0.10 0.05-0.10 0.01-0.05 0.25-0.50
11 AM MIXING HGT (FT) 2000 1900
MAX MIXING HGT (FT) 5600 3600
TRANSPORT WND (MPH) SW 12 W 11
VENT RATE (MPH-FT) 72800 43200
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
ILZ013-032115-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 40 40 50
MAX TEMP (24HR TREND) 94 (-1) 91
MIN RH % (24HR TREND) 47 (-1) 54
MIN TEMP (24HR TREND) 71 (-6) 72
MAX RH % (24HR TREND) 91 (+6) 94
20FT WIND AM (MPH) SW 7 S 6-7
20FT WIND PM (MPH) W 7 SE 5-6 SW 6-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.10-0.25 0.10-0.25 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 1900 1900
MAX MIXING HGT (FT) 5000 4000
TRANSPORT WND (MPH) SW 13 SW 11
VENT RATE (MPH-FT) 70000 48000
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
ILZ012-032115-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 30 30 50
MAX TEMP (24HR TREND) 93 (0) 90
MIN RH % (24HR TREND) 50 (-4) 60
MIN TEMP (24HR TREND) 70 (-6) 71
MAX RH % (24HR TREND) 92 (+8) 96
20FT WIND AM (MPH) SW 7 SE 6-7
20FT WIND PM (MPH) SW 7 SE 5-7 SW 6-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.10-0.25 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 1600 1600
MAX MIXING HGT (FT) 3800 3700
TRANSPORT WND (MPH) SW 12 SW 11
VENT RATE (MPH-FT) 49400 44400
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. PARTLY SUNNY.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE MID 60S. WEST
WINDS AROUND 5 MPH.
ILZ005-032115-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 50 50 50
MAX TEMP (24HR TREND) 91 (-1) 88
MIN RH % (24HR TREND) 52 (-1) 62
MIN TEMP (24HR TREND) 70 (-6) 70
MAX RH % (24HR TREND) 94 (+8) 99
20FT WIND AM (MPH) SW 7 S 7
20FT WIND PM (MPH) SW 7 SE 6-7 SW 7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.05-0.10 0.25-0.50 0.05-0.10 0.25-0.50
11 AM MIXING HGT (FT) 1500 1500
MAX MIXING HGT (FT) 3500 3600
TRANSPORT WND (MPH) W 11 SW 12
VENT RATE (MPH-FT) 42000 46800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. NORTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. WEST WINDS AROUND 5 MPH.
ILZ004-032115-
BOONE-
INCLUDING THE CITY OF BELVIDERE
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 40 50 50
MAX TEMP (24HR TREND) 93 (0) 90
MIN RH % (24HR TREND) 51 (0) 59
MIN TEMP (24HR TREND) 70 (-5) 70
MAX RH % (24HR TREND) 93 (+7) 96
20FT WIND AM (MPH) SW 6-7 S 7
20FT WIND PM (MPH) S 6-7 SE 6-8 SW 7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.25-0.50 0.05-0.10 0.10-0.25
11 AM MIXING HGT (FT) 1600 1600
MAX MIXING HGT (FT) 3600 3700
TRANSPORT WND (MPH) W 11 SW 11
VENT RATE (MPH-FT) 43200 44400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. WEST WINDS AROUND 5 MPH.
ILZ011-032115-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 30 20 40
MAX TEMP (24HR TREND) 93 (0) 90
MIN RH % (24HR TREND) 51 (-1) 58
MIN TEMP (24HR TREND) 71 (-5) 71
MAX RH % (24HR TREND) 92 (+7) 96
20FT WIND AM (MPH) SW 6-7 S 6-8
20FT WIND PM (MPH) SW 6-7 SE 5-7 SW 6-8 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.05-0.10 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 1600 1700
MAX MIXING HGT (FT) 4100 3600
TRANSPORT WND (MPH) SW 12 SW 12
VENT RATE (MPH-FT) 53300 46800
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. WEST WINDS 5 TO 10 MPH.
ILZ003-032115-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 40 40 40
MAX TEMP (24HR TREND) 94 (-1) 91
MIN RH % (24HR TREND) 47 (0) 56
MIN TEMP (24HR TREND) 71 (-4) 71
MAX RH % (24HR TREND) 92 (+4) 96
20FT WIND AM (MPH) SW 6-7 S 7-8
20FT WIND PM (MPH) S 6-7 SE 5-7 SW 7-8 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.01-0.05 0.10-0.25 0.05-0.10 0.10-0.25
11 AM MIXING HGT (FT) 1700 1700
MAX MIXING HGT (FT) 3600 3700
TRANSPORT WND (MPH) W 12 SW 11
VENT RATE (MPH-FT) 46800 44400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. WEST WINDS AROUND 5 MPH.
ILZ008-032115-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 30 20 40
MAX TEMP (24HR TREND) 94 (-1) 92
MIN RH % (24HR TREND) 48 (+1) 54
MIN TEMP (24HR TREND) 71 (-4) 71
MAX RH % (24HR TREND) 92 (+4) 96
20FT WIND AM (MPH) SW 6-7 S 6-8
20FT WIND PM (MPH) SW 6-7 S 5-6 SW 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.01-0.05 0.05-0.10
11 AM MIXING HGT (FT) 1600 1600
MAX MIXING HGT (FT) 4000 3600
TRANSPORT WND (MPH) SW 11 SW 12
VENT RATE (MPH-FT) 48000 46800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. WEST WINDS AROUND 5 MPH.
ILZ010-032115-
LEE-
INCLUDING THE CITY OF DIXON
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 20 20 10 40
MAX TEMP (24HR TREND) 93 (-1) 92
MIN RH % (24HR TREND) 51 (+2) 54
MIN TEMP (24HR TREND) 72 (-3) 72
MAX RH % (24HR TREND) 91 (+6) 96
20FT WIND AM (MPH) SW 6-7 S 6-8
20FT WIND PM (MPH) SW 6-7 S 5 SW 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.01-0.05
11 AM MIXING HGT (FT) 1700 1600
MAX MIXING HGT (FT) 4200 3800
TRANSPORT WND (MPH) SW 11 SW 12
VENT RATE (MPH-FT) 50400 49400
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. NORTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. WEST WINDS AROUND 5 MPH.
ILZ019-032115-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE TSTMS
CHANCE PRECIP (%) 20 10 30
MAX TEMP (24HR TREND) 94 (+1) 92
MIN RH % (24HR TREND) 48 (-6) 53
MIN TEMP (24HR TREND) 73 (-3) 72
MAX RH % (24HR TREND) 90 (+5) 92
20FT WIND AM (MPH) SW 6-7 SW 6-7
20FT WIND PM (MPH) SW 6-7 S 5 SW 6-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.01-0.05
11 AM MIXING HGT (FT) 1700 1600
MAX MIXING HGT (FT) 5500 3800
TRANSPORT WND (MPH) SW 12 SW 11
VENT RATE (MPH-FT) 71500 45600
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. NORTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
ILZ020-032115-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 30 20 10 40
MAX TEMP (24HR TREND) 94 (0) 91
MIN RH % (24HR TREND) 49 (-5) 57
MIN TEMP (24HR TREND) 72 (-5) 72
MAX RH % (24HR TREND) 92 (+10) 96
20FT WIND AM (MPH) SW 6 S 5-7
20FT WIND PM (MPH) SW 6 LGT/VAR SW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.10-0.25
11 AM MIXING HGT (FT) 1600 1700
MAX MIXING HGT (FT) 4300 3600
TRANSPORT WND (MPH) SW 12 SW 10
VENT RATE (MPH-FT) 55900 36000
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER
60S. WEST WINDS 5 TO 10 MPH.
ILZ021-032115-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 20 10 10 40
MAX TEMP (24HR TREND) 94 (0) 92
MIN RH % (24HR TREND) 48 (-5) 56
MIN TEMP (24HR TREND) 73 (-3) 72
MAX RH % (24HR TREND) 90 (+5) 96
20FT WIND AM (MPH) SW 6-7 SW 5-7
20FT WIND PM (MPH) SW 6-7 SE 5 SW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.05-0.10
11 AM MIXING HGT (FT) 1800 1800
MAX MIXING HGT (FT) 5400 4200
TRANSPORT WND (MPH) SW 12 SW 11
VENT RATE (MPH-FT) 70200 50400
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. NORTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS AROUND
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS 5 TO 10 MPH.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
ILZ022-032115-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 30 20 40
MAX TEMP (24HR TREND) 94 (0) 91
MIN RH % (24HR TREND) 47 (-6) 55
MIN TEMP (24HR TREND) 72 (-4) 72
MAX RH % (24HR TREND) 92 (+8) 97
20FT WIND AM (MPH) SW 6-7 SW 5-7
20FT WIND PM (MPH) SW 6-7 SE 5-6 W 5-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 1800 1800
MAX MIXING HGT (FT) 5100 4000
TRANSPORT WND (MPH) SW 12 W 11
VENT RATE (MPH-FT) 66300 48000
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. NORTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS
AROUND 10 MPH.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER
60S. WEST WINDS AROUND 5 MPH.
ILZ032-032115-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 10 10 30
MAX TEMP (24HR TREND) 94 (0) 92
MIN RH % (24HR TREND) 50 (-3) 55
MIN TEMP (24HR TREND) 74 (-1) 73
MAX RH % (24HR TREND) 86 (-1) 90
20FT WIND AM (MPH) SW 7 SW 7
20FT WIND PM (MPH) SW 7 S 5-6 SW 7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.01-0.05
11 AM MIXING HGT (FT) 1700 1800
MAX MIXING HGT (FT) 5500 4300
TRANSPORT WND (MPH) SW 13 SW 12
VENT RATE (MPH-FT) 77000 55900
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. NOT AS WARM. HIGHS AROUND 80. EAST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
ILZ023-032115-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 20 10 40
MAX TEMP (24HR TREND) 94 (+1) 91
MIN RH % (24HR TREND) 50 (-3) 55
MIN TEMP (24HR TREND) 73 (-2) 72
MAX RH % (24HR TREND) 89 (+2) 92
20FT WIND AM (MPH) SW 6-8 SW 5-7
20FT WIND PM (MPH) SW 6-8 SE 5 W 5-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 1900 1900
MAX MIXING HGT (FT) 5400 4600
TRANSPORT WND (MPH) SW 13 W 12
VENT RATE (MPH-FT) 75600 59800
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. NORTH WINDS 5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
ILZ039-032115-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 10 30
MAX TEMP (24HR TREND) 94 (+1) 92
MIN RH % (24HR TREND) 48 (-6) 55
MIN TEMP (24HR TREND) 73 (-1) 74
MAX RH % (24HR TREND) 85 (0) 88
20FT WIND AM (MPH) SW 7 SW 6-7
20FT WIND PM (MPH) SW 7 LGT/VAR SW 6-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.01-0.05
11 AM MIXING HGT (FT) 1700 1700
MAX MIXING HGT (FT) 5200 4300
TRANSPORT WND (MPH) SW 13 SW 11
VENT RATE (MPH-FT) 72800 51600
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND 5 MPH, BECOMING
NORTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS AROUND 10 MPH.
SUNDAY
SUNNY. NOT AS WARM. HIGHS AROUND 80. NORTHEAST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
ILZ033-032115-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 10 10 10 30
MAX TEMP (24HR TREND) 94 (+1) 92
MIN RH % (24HR TREND) 50 (-4) 54
MIN TEMP (24HR TREND) 73 (-1) 73
MAX RH % (24HR TREND) 86 (+3) 88
20FT WIND AM (MPH) SW 6-8 SW 6
20FT WIND PM (MPH) SW 6-8 LGT/VAR W 6 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.05-0.10
11 AM MIXING HGT (FT) 1900 1900
MAX MIXING HGT (FT) 5300 4600
TRANSPORT WND (MPH) SW 14 W 11
VENT RATE (MPH-FT) 79500 55200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS AROUND 90. NORTHWEST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS AROUND 10 MPH.
SUNDAY
SUNNY. NOT AS WARM. HIGHS AROUND 80. NORTHEAST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS, BECOMING EAST
AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
INZ010-032115-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 10 20 20 40
MAX TEMP (24HR TREND) 94 (+2) 92
MIN RH % (24HR TREND) 49 (-7) 53
MIN TEMP (24HR TREND) 73 (-1) 73
MAX RH % (24HR TREND) 89 (+5) 89
20FT WIND AM (MPH) SW 6-8 SW 5-7
20FT WIND PM (MPH) SW 6-8 SE 5 W 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 2000 2100
MAX MIXING HGT (FT) 5900 4600
TRANSPORT WND (MPH) SW 14 W 11
VENT RATE (MPH-FT) 88500 55200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH, BECOMING NORTH
IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
SUNNY. HIGHS AROUND 80. NORTHEAST WINDS AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. EAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
EAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE MID 60S. WEST WINDS AROUND 5 MPH.
INZ011-032115-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
417 AM CDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 10 20 30 40
MAX TEMP (24HR TREND) 94 (+2) 92
MIN RH % (24HR TREND) 49 (-6) 54
MIN TEMP (24HR TREND) 73 (-2) 73
MAX RH % (24HR TREND) 89 (+3) 91
20FT WIND AM (MPH) SW 7-8 SW 5-7
20FT WIND PM (MPH) SW 7-8 SE 5 W 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 2000 2200
MAX MIXING HGT (FT) 6100 4500
TRANSPORT WND (MPH) SW 14 W 12
VENT RATE (MPH-FT) 91500 58500
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH, BECOMING NORTH
IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS 5 TO 10 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS AROUND
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. EAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 60S. WEST WINDS AROUND 5 MPH.
INZ019-032115-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
517 AM EDT THU SEP 3 2026
..HEAT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR CLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 10 10 10 30
MAX TEMP (24HR TREND) 94 (+3) 90
MIN RH % (24HR TREND) 50 (-7) 56
MIN TEMP (24HR TREND) 73 (-1) 73
MAX RH % (24HR TREND) 85 (+1) 89
20FT WIND AM (MPH) SW 6-8 SW 6
20FT WIND PM (MPH) SW 6-8 LGT/VAR W 6 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.05-0.10
11 AM MIXING HGT (FT) 1700 1500
MAX MIXING HGT (FT) 4900 4300
TRANSPORT WND (MPH) SW 14 W 11
VENT RATE (MPH-FT) 73500 51600
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. NORTH WINDS AROUND 5 MPH, BECOMING
NORTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 10 MPH.
SUNDAY
SUNNY. NOT AS WARM. HIGHS IN THE UPPER 70S. NORTHEAST
WINDS AROUND 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTH WINDS 5 TO
10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
BORCHARDT
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