248
FNUS53 KLOT 170944
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
444 AM CDT WED SEP 17 2025
DISCUSSION
ASIDE FROM SOME PATCHY FOG THIS MORNING, ANOTHER DRY AND WARM DAY
CAN BE EXPECTED. TEMPERATURES WILL ONCE AGAIN TOP OUT IN THE MID
TO UPPER 80S WITH RH VALUES DIPPING INTO THE 30-35% RANGE. THOUGH,
A LAKE BREEZE THIS AFTERNOON WILL KEEP TEMPERATURES COOLER NEAR
THE LAKE WHICH IN TURN WILL KEEP RH VALUES MORE IN THE 50-60%
RANGE. SIMILAR CONDITIONS CAN BE EXPECTED FOR THURSDAY, BUT A
LAKE ENHANCED COLD FRONT WILL MOVE INTO THE AREA DURING THE
AFTERNOON CAUSING TEMPERATURES TO COOL AND RH VALUES TO INCREASE.
WHILE FRIDAY WILL ALSO BE DRY AND WARM WITH HIGHS IN THE MID TO
UPPER 80S, THE PERSISTENT ONSHORE WINDS WILL KEEP TEMPERATURES
MUCH COOLER ALONG THE LAKESHORE (MID-70S) WITH RH VALUES AROUND
50-55% AREAWIDE.
RAIN CHANCES WILL INCREASE FRIDAY NIGHT THROUGH INTO EARLY NEXT
WEEK AS SEVERAL DISTURBANCES PIVOT THROUGH THE REGION.
TEMPERATURES LOOK TO REMAIN SEASONABLY WARM IN THE LOWER 80S
HOWEVER.
ILZ014-180945-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 84 (+3) 85
MIN RH % (24HR TREND) 36 (-6) 38
MIN TEMP (24HR TREND) 59 (-1) 61
MAX RH % (24HR TREND) 87 (-5) 98
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 2-5 LGT/VAR NE 2-6 NE 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2700 2600
MAX MIXING HGT (FT) 4600 5200
TRANSPORT WND (MPH) NE 5 NE 4
VENT RATE (MPH-FT) 27600 26000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 10 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTHEAST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH.
ILZ006-180945-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 83 (+2) 83
MIN RH % (24HR TREND) 39 (-11) 45
MIN TEMP (24HR TREND) 58 (+3) 60
MAX RH % (24HR TREND) 89 (-11) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) E 1-5 LGT/VAR NE 2-6 NE 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 2600
MAX MIXING HGT (FT) 4000 4200
TRANSPORT WND (MPH) E 4 E 5
VENT RATE (MPH-FT) 20000 25200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. SOUTHEAST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST
WINDS AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 80. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH.
INZ001-180945-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 85 (+5) 85
MIN RH % (24HR TREND) 38 (-7) 38
MIN TEMP (24HR TREND) 56 (0) 59
MAX RH % (24HR TREND) 91 (-7) 96
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 1-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2400 2500
MAX MIXING HGT (FT) 5200 5000
TRANSPORT WND (MPH) NE 4 N 3
VENT RATE (MPH-FT) 26000 15000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST
WINDS AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
INZ002-180945-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 84 (+3) 86
MIN RH % (24HR TREND) 39 (-5) 39
MIN TEMP (24HR TREND) 56 (+1) 59
MAX RH % (24HR TREND) 91 (-5) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 2-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 2800
MAX MIXING HGT (FT) 5400 4900
TRANSPORT WND (MPH) NE 4 NW 3
VENT RATE (MPH-FT) 27000 14700
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. NORTHEAST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 60. NORTH WINDS AROUND 5 MPH, BECOMING
EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
ILZ013-180945-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 85 (+1) 86
MIN RH % (24HR TREND) 35 (-2) 37
MIN TEMP (24HR TREND) 59 (+2) 61
MAX RH % (24HR TREND) 89 (-7) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) E 1-5 LGT/VAR E 2-5 NE 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 2600
MAX MIXING HGT (FT) 4700 5300
TRANSPORT WND (MPH) E 5 E 4
VENT RATE (MPH-FT) 28200 26500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH.
ILZ012-180945-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 85 (0) 85
MIN RH % (24HR TREND) 35 (-5) 40
MIN TEMP (24HR TREND) 58 (+5) 60
MAX RH % (24HR TREND) 90 (-9) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR NE 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2400 2200
MAX MIXING HGT (FT) 4500 4600
TRANSPORT WND (MPH) NE 4 NE 5
VENT RATE (MPH-FT) 22500 27600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH,
BECOMING SOUTHEAST AFTER MIDNIGHT.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
ILZ005-180945-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 84 (0) 84
MIN RH % (24HR TREND) 39 (-1) 45
MIN TEMP (24HR TREND) 58 (+3) 59
MAX RH % (24HR TREND) 86 (-12) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR E 2-5 NE 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 2300
MAX MIXING HGT (FT) 4000 4000
TRANSPORT WND (MPH) E 3 E 5
VENT RATE (MPH-FT) 12000 24000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. EAST WINDS AROUND
5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. SOUTHWEST
WINDS AROUND 5 MPH.
ILZ004-180945-
BOONE-
INCLUDING THE CITY OF BELVIDERE
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 85 (+1) 85
MIN RH % (24HR TREND) 41 (+4) 42
MIN TEMP (24HR TREND) 58 (+3) 59
MAX RH % (24HR TREND) 86 (-13) 98
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR E 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1900 2000
MAX MIXING HGT (FT) 3700 4100
TRANSPORT WND (MPH) E 3 E 4
VENT RATE (MPH-FT) 11100 20500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY. HIGHS AROUND 80. EAST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. EAST WINDS 5 TO
10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 60. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 50S.
SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. SOUTHWEST
WINDS AROUND 5 MPH.
ILZ011-180945-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 85 (0) 87
MIN RH % (24HR TREND) 36 (-1) 36
MIN TEMP (24HR TREND) 58 (+5) 60
MAX RH % (24HR TREND) 87 (-12) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR E 6-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 2300
MAX MIXING HGT (FT) 4000 5100
TRANSPORT WND (MPH) NE 4 E 4
VENT RATE (MPH-FT) 20000 25500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
ILZ003-180945-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 86 (+2) 86
MIN RH % (24HR TREND) 38 (+3) 38
MIN TEMP (24HR TREND) 58 (+2) 60
MAX RH % (24HR TREND) 88 (-10) 98
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR E 6-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1900 2200
MAX MIXING HGT (FT) 4100 4600
TRANSPORT WND (MPH) E 3 E 5
VENT RATE (MPH-FT) 12300 27600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 60. EAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS 5 TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
ILZ008-180945-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 86 (0) 88
MIN RH % (24HR TREND) 36 (+3) 34
MIN TEMP (24HR TREND) 57 (+2) 60
MAX RH % (24HR TREND) 85 (-10) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR E 6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 2300
MAX MIXING HGT (FT) 4400 5700
TRANSPORT WND (MPH) E 3 E 4
VENT RATE (MPH-FT) 13200 28500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 60. EAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 50S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
ILZ010-180945-
LEE-
INCLUDING THE CITY OF DIXON
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 86 (-1) 89
MIN RH % (24HR TREND) 36 (+6) 33
MIN TEMP (24HR TREND) 57 (+2) 60
MAX RH % (24HR TREND) 86 (-8) 93
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR E 6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 2400
MAX MIXING HGT (FT) 4500 6300
TRANSPORT WND (MPH) E 5 E 4
VENT RATE (MPH-FT) 27000 31500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 60. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
ILZ019-180945-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 88 (0) 89
MIN RH % (24HR TREND) 29 (-1) 31
MIN TEMP (24HR TREND) 57 (+5) 60
MAX RH % (24HR TREND) 89 (-11) 90
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR E 5-6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 2700
MAX MIXING HGT (FT) 4900 6400
TRANSPORT WND (MPH) NE 6 E 3
VENT RATE (MPH-FT) 34300 19200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH.
ILZ020-180945-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 86 (+1) 87
MIN RH % (24HR TREND) 34 (-3) 36
MIN TEMP (24HR TREND) 57 (+4) 61
MAX RH % (24HR TREND) 92 (-8) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR NE 5-6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2300 2200
MAX MIXING HGT (FT) 4500 5000
TRANSPORT WND (MPH) E 5 E 3
VENT RATE (MPH-FT) 27000 15000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH.
ILZ021-180945-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 87 (+1) 89
MIN RH % (24HR TREND) 32 (-3) 33
MIN TEMP (24HR TREND) 57 (+5) 60
MAX RH % (24HR TREND) 93 (-7) 93
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2300 2700
MAX MIXING HGT (FT) 4900 5900
TRANSPORT WND (MPH) NE 5 E 2
VENT RATE (MPH-FT) 29400 11800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH.
ILZ022-180945-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 86 (+3) 88
MIN RH % (24HR TREND) 35 (-5) 35
MIN TEMP (24HR TREND) 57 (+2) 60
MAX RH % (24HR TREND) 92 (-7) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 1-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2400 2600
MAX MIXING HGT (FT) 5000 5200
TRANSPORT WND (MPH) NE 4 NE 4
VENT RATE (MPH-FT) 25000 26000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH.
ILZ032-180945-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 88 (0) 89
MIN RH % (24HR TREND) 30 (+1) 33
MIN TEMP (24HR TREND) 57 (+6) 59
MAX RH % (24HR TREND) 92 (-8) 92
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 3400
MAX MIXING HGT (FT) 5100 6300
TRANSPORT WND (MPH) NE 5 E 3
VENT RATE (MPH-FT) 30600 18900
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. SOUTHWEST
WINDS AROUND 5 MPH.
ILZ023-180945-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 86 (+2) 88
MIN RH % (24HR TREND) 34 (-4) 34
MIN TEMP (24HR TREND) 56 (+3) 59
MAX RH % (24HR TREND) 93 (-6) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2900
MAX MIXING HGT (FT) 5200 5800
TRANSPORT WND (MPH) NE 4 NE 3
VENT RATE (MPH-FT) 26000 17400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ039-180945-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 87 (+1) 89
MIN RH % (24HR TREND) 31 (+1) 31
MIN TEMP (24HR TREND) 57 (+4) 59
MAX RH % (24HR TREND) 91 (-5) 90
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3200 4200
MAX MIXING HGT (FT) 5500 6400
TRANSPORT WND (MPH) NE 5 E 3
VENT RATE (MPH-FT) 33000 19200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
ILZ033-180945-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 87 (+2) 88
MIN RH % (24HR TREND) 32 (0) 31
MIN TEMP (24HR TREND) 56 (+3) 59
MAX RH % (24HR TREND) 92 (-5) 90
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2400 3800
MAX MIXING HGT (FT) 5500 6400
TRANSPORT WND (MPH) NE 4 NE 3
VENT RATE (MPH-FT) 27500 19200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ010-180945-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 85 (+4) 87
MIN RH % (24HR TREND) 36 (-2) 35
MIN TEMP (24HR TREND) 56 (+3) 59
MAX RH % (24HR TREND) 92 (-5) 93
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 3200
MAX MIXING HGT (FT) 5400 5700
TRANSPORT WND (MPH) NE 3 NE 3
VENT RATE (MPH-FT) 16200 17100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. NORTHEAST WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ011-180945-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
444 AM CDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 85 (+4) 87
MIN RH % (24HR TREND) 35 (-4) 37
MIN TEMP (24HR TREND) 56 (+2) 59
MAX RH % (24HR TREND) 93 (-4) 94
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 3100
MAX MIXING HGT (FT) 5700 5800
TRANSPORT WND (MPH) NE 3 N 3
VENT RATE (MPH-FT) 17100 17400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. NORTHEAST WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
5 MPH.
SUNDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ019-180945-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
544 AM EDT WED SEP 17 2025
TODAY TONIGHT THU THU NIGHT
CLOUD COVER CLEAR CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 86 (+3) 87
MIN RH % (24HR TREND) 35 (+2) 34
MIN TEMP (24HR TREND) 58 (+3) 60
MAX RH % (24HR TREND) 87 (-5) 89
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2300 3600
MAX MIXING HGT (FT) 5700 6100
TRANSPORT WND (MPH) NE 3 NE 3
VENT RATE (MPH-FT) 17100 18300
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 80.
SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
YACK
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page