528
FNUS53 KLOT 271003
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
503 AM CDT MON JUL 27 2026
DISCUSSION
IT WILL BE HOT AND OPPRESSIVELY HUMID TODAY. THERE IS A CHANCE FOR
THUNDERSTORMS TODAY INTO THIS EVENING. IF STORMS OCCUR, SOME WILL
LIKELY BE SEVERE. A COLD FRONT WILL BRING COOLER AND MUCH LESS HUMID
CONDITIONS TUESDAY THROUGH THURSDAY. RATHER GUSTY NORTHERLY WINDS
ARE EXPECTED TUESDAY.
ILZ014-272115-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
503 AM CDT MON JUL 27 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 90 (+1) 78
MIN RH % (24HR TREND) 66 (+11) 54
MIN TEMP (24HR TREND) 69 (-7) 63
MAX RH % (24HR TREND) 94 (-3) 83
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) SW 10-15 W 10 N 10-15 N 5-9
PEAK WIND GUSTS (MPH) 27 25 25 23
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2000 3100
MAX MIXING HGT (FT) 3400 4000
TRANSPORT WND (MPH) SW 16 N 19
VENT RATE (MPH-FT) 54400 80000
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS AROUND 80. NORTH WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHEAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 5 MPH IN THE EVENING, BECOMING
LIGHT.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ006-272115-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 20
MAX TEMP (24HR TREND) 89 (-1) 78
MIN RH % (24HR TREND) 70 (+16) 56
MIN TEMP (24HR TREND) 67 (-8) 60
MAX RH % (24HR TREND) 96 (-3) 87
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) SW 10-15 NW 10-11 N 10-15 LGT/VAR
PEAK WIND GUSTS (MPH) 26 21 24
PRECIP AMOUNT (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 1900 3300
MAX MIXING HGT (FT) 3100 4000
TRANSPORT WND (MPH) SW 17 N 18
VENT RATE (MPH-FT) 52700 72000
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT WINDS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ001-272115-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 20
MAX TEMP (24HR TREND) 89 (+1) 77
MIN RH % (24HR TREND) 71 (+13) 64
MIN TEMP (24HR TREND) 69 (-3) 61
MAX RH % (24HR TREND) 100 (0) 91
20FT WIND AM (MPH) SW 8-12 N 10-15
20FT WIND PM (MPH) SW 8-12 SW 9-10 N 10-15 LGT/VAR
PEAK WIND GUSTS (MPH) 24 23 25 24
PRECIP AMOUNT (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 1700 2500
MAX MIXING HGT (FT) 2900 2800
TRANSPORT WND (MPH) S 16 N 20
VENT RATE (MPH-FT) 46400 58800
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. WEST
WINDS AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ002-272115-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
503 AM CDT MON JUL 27 2026
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 20
MAX TEMP (24HR TREND) 88 (+1) 77
MIN RH % (24HR TREND) 76 (+14) 70
MIN TEMP (24HR TREND) 69 (-3) 61
MAX RH % (24HR TREND) 98 (-2) 92
20FT WIND AM (MPH) S 8-12 N 10-15
20FT WIND PM (MPH) SW 8-12 SW 9 N 10-15 N 5-10
PEAK WIND GUSTS (MPH) 23 23 26 24
PRECIP AMOUNT (IN) 0.10-0.25 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 1900 2400
MAX MIXING HGT (FT) 2700 2600
TRANSPORT WND (MPH) SW 17 N 20
VENT RATE (MPH-FT) 45900 54600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80. NORTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ013-272115-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 91 (+2) 80
MIN RH % (24HR TREND) 66 (+9) 53
MIN TEMP (24HR TREND) 69 (-7) 62
MAX RH % (24HR TREND) 94 (-4) 84
20FT WIND AM (MPH) SW 10-15 N 11-12
20FT WIND PM (MPH) SW 10-15 NW 10 N 11-12 LGT/VAR
PEAK WIND GUSTS (MPH) 26 23 20 17
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1900 3200
MAX MIXING HGT (FT) 3300 4400
TRANSPORT WND (MPH) SW 17 N 18
VENT RATE (MPH-FT) 56100 79200
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS AROUND 5 MPH,
BECOMING SOUTHWEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ012-272115-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS SHOWERS NONE NONE
CHANCE PRECIP (%) 50 10
MAX TEMP (24HR TREND) 91 (+3) 79
MIN RH % (24HR TREND) 68 (+3) 59
MIN TEMP (24HR TREND) 68 (-6) 60
MAX RH % (24HR TREND) 96 (-4) 86
20FT WIND AM (MPH) SW 10-15 N 11-12
20FT WIND PM (MPH) SW 10-15 W 10 N 11-12 LGT/VAR
PEAK WIND GUSTS (MPH) 26 21 18
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1800 2900
MAX MIXING HGT (FT) 2900 4400
TRANSPORT WND (MPH) SW 18 NE 16
VENT RATE (MPH-FT) 52200 70400
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ005-272115-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 10
MAX TEMP (24HR TREND) 90 (+1) 79
MIN RH % (24HR TREND) 70 (+8) 57
MIN TEMP (24HR TREND) 66 (-8) 60
MAX RH % (24HR TREND) 97 (-3) 87
20FT WIND AM (MPH) SW 10-15 N 10-12
20FT WIND PM (MPH) SW 10-15 NW 9-10 NE 10-12 LGT/VAR
PEAK WIND GUSTS (MPH) 25 19 18
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1800 3100
MAX MIXING HGT (FT) 3100 4500
TRANSPORT WND (MPH) SW 20 NE 16
VENT RATE (MPH-FT) 65100 72000
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
ILZ004-272115-
BOONE-
INCLUDING THE CITY OF BELVIDERE
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS SHOWERS NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 92 (+3) 80
MIN RH % (24HR TREND) 67 (-1) 54
MIN TEMP (24HR TREND) 67 (-8) 60
MAX RH % (24HR TREND) 92 (-8) 87
20FT WIND AM (MPH) SW 10-15 N 10
20FT WIND PM (MPH) SW 10-15 NW 9 NE 10 LGT/VAR
PEAK WIND GUSTS (MPH) 24 19 17
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1800 2900
MAX MIXING HGT (FT) 3600 4500
TRANSPORT WND (MPH) SW 20 NE 13
VENT RATE (MPH-FT) 75600 63000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ011-272115-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 92 (+5) 80
MIN RH % (24HR TREND) 69 (-2) 58
MIN TEMP (24HR TREND) 68 (-6) 60
MAX RH % (24HR TREND) 95 (-5) 86
20FT WIND AM (MPH) SW 10-15 N 11
20FT WIND PM (MPH) SW 10-15 W 9-10 NE 11 LGT/VAR
PEAK WIND GUSTS (MPH) 25 20 17
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1900 2800
MAX MIXING HGT (FT) 3200 4300
TRANSPORT WND (MPH) SW 19 NE 14
VENT RATE (MPH-FT) 64000 64500
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ003-272115-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 94 (+5) 82
MIN RH % (24HR TREND) 66 (-5) 51
MIN TEMP (24HR TREND) 68 (-6) 60
MAX RH % (24HR TREND) 90 (-10) 88
20FT WIND AM (MPH) SW 10-15 N 10
20FT WIND PM (MPH) SW 10-15 NW 9-10 NE 10 LGT/VAR
PEAK WIND GUSTS (MPH) 24 19 16
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2900
MAX MIXING HGT (FT) 4000 4600
TRANSPORT WND (MPH) SW 20 NE 13
VENT RATE (MPH-FT) 84000 64400
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. EAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ008-272115-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 94 (+5) 82
MIN RH % (24HR TREND) 69 (-3) 53
MIN TEMP (24HR TREND) 68 (-6) 60
MAX RH % (24HR TREND) 95 (-5) 87
20FT WIND AM (MPH) SW 10-15 NE 9-10
20FT WIND PM (MPH) SW 10-15 NW 9 NE 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 24 19 17
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 2800
MAX MIXING HGT (FT) 3900 4300
TRANSPORT WND (MPH) SW 20 NE 13
VENT RATE (MPH-FT) 81900 60200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. SOUTH WINDS AROUND 5 MPH IN THE EVENING, BECOMING
LIGHT.
SATURDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ010-272115-
LEE-
INCLUDING THE CITY OF DIXON
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 94 (+6) 82
MIN RH % (24HR TREND) 71 (-2) 56
MIN TEMP (24HR TREND) 69 (-5) 60
MAX RH % (24HR TREND) 95 (-5) 87
20FT WIND AM (MPH) SW 10-15 NE 9-10
20FT WIND PM (MPH) SW 10-15 W 9 NE 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 23 20 17
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2700
MAX MIXING HGT (FT) 3400 4100
TRANSPORT WND (MPH) SW 20 NE 13
VENT RATE (MPH-FT) 71400 57400
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. NORTHEAST WINDS
AROUND 5 MPH.
ILZ019-272115-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40
MAX TEMP (24HR TREND) 94 (+6) 82
MIN RH % (24HR TREND) 67 (-7) 59
MIN TEMP (24HR TREND) 70 (-6) 61
MAX RH % (24HR TREND) 93 (-7) 85
20FT WIND AM (MPH) SW 7-12 N 10
20FT WIND PM (MPH) SW 7-12 W 8-9 N 10 LGT/VAR
PEAK WIND GUSTS (MPH) 23 20 17
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2700
MAX MIXING HGT (FT) 3500 4100
TRANSPORT WND (MPH) SW 19 N 14
VENT RATE (MPH-FT) 70000 61500
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE MID 60S.
SOUTHEAST WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ020-272115-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 40 10
MAX TEMP (24HR TREND) 93 (+4) 81
MIN RH % (24HR TREND) 66 (+2) 59
MIN TEMP (24HR TREND) 69 (-6) 60
MAX RH % (24HR TREND) 97 (-3) 86
20FT WIND AM (MPH) SW 10-15 N 11
20FT WIND PM (MPH) SW 10-15 W 9-10 N 11 LGT/VAR
PEAK WIND GUSTS (MPH) 24 21 17
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1800 2900
MAX MIXING HGT (FT) 3300 4300
TRANSPORT WND (MPH) SW 19 N 16
VENT RATE (MPH-FT) 66000 68800
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ021-272115-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 10
MAX TEMP (24HR TREND) 94 (+6) 82
MIN RH % (24HR TREND) 66 (-5) 59
MIN TEMP (24HR TREND) 70 (-6) 61
MAX RH % (24HR TREND) 98 (-2) 87
20FT WIND AM (MPH) SW 7-12 N 10-11
20FT WIND PM (MPH) SW 7-12 W 7-9 N 10-11 LGT/VAR
PEAK WIND GUSTS (MPH) 21 19 17
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2900
MAX MIXING HGT (FT) 3500 4200
TRANSPORT WND (MPH) SW 19 N 14
VENT RATE (MPH-FT) 70000 63000
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 80S. LIGHT WINDS, BECOMING SOUTH AROUND 5 MPH IN THE
AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. LIGHT
WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. LIGHT
WINDS, BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
ILZ022-272115-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
503 AM CDT MON JUL 27 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 10
MAX TEMP (24HR TREND) 91 (+2) 81
MIN RH % (24HR TREND) 69 (+8) 57
MIN TEMP (24HR TREND) 69 (-5) 61
MAX RH % (24HR TREND) 100 (0) 87
20FT WIND AM (MPH) SW 8-12 N 11-12
20FT WIND PM (MPH) SW 8-12 W 9-10 N 11-12 LGT/VAR
PEAK WIND GUSTS (MPH) 26 24 21
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1700 3100
MAX MIXING HGT (FT) 3100 4100
TRANSPORT WND (MPH) SW 17 N 17
VENT RATE (MPH-FT) 52700 69700
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ032-272115-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50
MAX TEMP (24HR TREND) 94 (+8) 82
MIN RH % (24HR TREND) 69 (-12) 63
MIN TEMP (24HR TREND) 71 (-4) 60
MAX RH % (24HR TREND) 97 (-3) 88
20FT WIND AM (MPH) SW 7-11 N 10
20FT WIND PM (MPH) SW 7-11 W 6-8 N 10 LGT/VAR
PEAK WIND GUSTS (MPH) 20 19 16
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1900 2700
MAX MIXING HGT (FT) 3400 4000
TRANSPORT WND (MPH) SW 18 N 14
VENT RATE (MPH-FT) 61200 60000
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
ILZ023-272115-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 92 (+5) 81
MIN RH % (24HR TREND) 67 (+3) 60
MIN TEMP (24HR TREND) 69 (-4) 60
MAX RH % (24HR TREND) 100 (0) 90
20FT WIND AM (MPH) SW 7-11 N 11-12
20FT WIND PM (MPH) SW 7-11 W 7-8 N 11-12 LGT/VAR
PEAK WIND GUSTS (MPH) 20 19 21
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2000 2900
MAX MIXING HGT (FT) 3100 3700
TRANSPORT WND (MPH) SW 14 N 17
VENT RATE (MPH-FT) 46500 62900
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. LIGHT
WINDS, BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
ILZ039-272115-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
503 AM CDT MON JUL 27 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 10
MAX TEMP (24HR TREND) 93 (+8) 82
MIN RH % (24HR TREND) 68 (-14) 61
MIN TEMP (24HR TREND) 71 (-2) 60
MAX RH % (24HR TREND) 97 (-3) 87
20FT WIND AM (MPH) SW 7-12 N 11
20FT WIND PM (MPH) SW 7-12 SW 7-9 N 11 LGT/VAR
PEAK WIND GUSTS (MPH) 20 19 17
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1800 2600
MAX MIXING HGT (FT) 3700 3800
TRANSPORT WND (MPH) S 19 N 16
VENT RATE (MPH-FT) 74000 60800
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. NORTH WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ033-272115-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER PCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 92 (+6) 81
MIN RH % (24HR TREND) 66 (-6) 59
MIN TEMP (24HR TREND) 70 (-3) 60
MAX RH % (24HR TREND) 100 (0) 89
20FT WIND AM (MPH) SW 8-10 N 11-12
20FT WIND PM (MPH) SW 8-10 SW 6-8 N 11-12 LGT/VAR
PEAK WIND GUSTS (MPH) 18 18 19
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2000 2800
MAX MIXING HGT (FT) 3200 3700
TRANSPORT WND (MPH) SW 17 N 17
VENT RATE (MPH-FT) 54400 62900
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. LIGHT WINDS, BECOMING SOUTH AROUND 5 MPH IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. LIGHT
WINDS, BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
INZ010-272115-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 90 (+5) 80
MIN RH % (24HR TREND) 69 (+2) 61
MIN TEMP (24HR TREND) 69 (-2) 60
MAX RH % (24HR TREND) 100 (0) 91
20FT WIND AM (MPH) SW 7-10 N 10-15
20FT WIND PM (MPH) SW 7-10 SW 7-8 N 10-15 LGT/VAR
PEAK WIND GUSTS (MPH) 19 18 21
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1700 2800
MAX MIXING HGT (FT) 3100 3200
TRANSPORT WND (MPH) SW 16 N 20
VENT RATE (MPH-FT) 49600 67200
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. LIGHT WINDS, BECOMING SOUTH AROUND 5 MPH IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTH
WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
INZ011-272115-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
503 AM CDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 20
MAX TEMP (24HR TREND) 89 (+5) 79
MIN RH % (24HR TREND) 74 (+6) 63
MIN TEMP (24HR TREND) 69 (-2) 60
MAX RH % (24HR TREND) 100 (0) 93
20FT WIND AM (MPH) SW 8-10 N 10-15
20FT WIND PM (MPH) SW 8-10 SW 7-9 N 10-15 LGT/VAR
PEAK WIND GUSTS (MPH) 20 19 23 18
PRECIP AMOUNT (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 1800 2700
MAX MIXING HGT (FT) 3000 3000
TRANSPORT WND (MPH) SW 14 N 20
VENT RATE (MPH-FT) 45000 63000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. NORTH WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ019-272115-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
603 AM EDT MON JUL 27 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT /9 PM CDT/
THIS EVENING...
TODAY TONIGHT TUE TUE NIGHT
CLOUD COVER MCLDY PCLDY PCLDY CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 90 (+5) 80
MIN RH % (24HR TREND) 72 (+3) 63
MIN TEMP (24HR TREND) 69 (-3) 60
MAX RH % (24HR TREND) 100 (0) 90
20FT WIND AM (MPH) SW 7-10 N 10-15
20FT WIND PM (MPH) SW 7-10 SW 7-9 N 10-15 LGT/VAR
PEAK WIND GUSTS (MPH) 19 19 21
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1700 2700
MAX MIXING HGT (FT) 3200 3300
TRANSPORT WND (MPH) SW 14 N 18
VENT RATE (MPH-FT) 48000 59400
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
WEDNESDAY
SUNNY. HIGHS AROUND 80. NORTH WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. NORTH WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTH WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
- IZZI
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