277
FNUS53 KLOT 091049
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
449 AM CST TUE DEC 9 2025
DISCUSSION
GUSTY SOUTHWESTERLY WINDS WILL HELP TEMPERATURES WARM INTO THE MID
TO UPPER 30S TODAY IN MOST LOCATIONS. AFTER A PERIOD OF RAIN WITH
STRENGTHENING WESTERLY WINDS TONIGHT, GUSTY SNOW SHOWERS/SQUALLS
MAY BE OBSERVED TOMORROW AS WINDS REMAIN STRONG AND TURN NORTHWESTERLY
BEHIND A COLD FRONT.
COLDER CONDITIONS ARE EXPECTED FOR THE END OF THE WEEK AND ESPECIALLY
THIS WEEKEND, WHEN DAYTIME HIGHS MAY NOT MAKE IT OUT OF THE SINGLE
DIGITS IN SOME LOCATIONS. PERIODIC CHANCES FOR ADDITIONAL SNOWFALL
ARE ALSO FORECASTED FROM LATE THURSDAY THROUGH THE WEEKEND.
ILZ014-092230-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 10 100 80 30
MAX TEMP (24HR TREND) 35 (+8) 35
MIN RH % (24HR TREND) 86 (+35) 78
MIN TEMP (24HR TREND) 30 (+12) 15
MAX RH % (24HR TREND) 96 (+12) 96
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 28 36 38 20
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 1000 2100
MAX MIXING HGT (FT) 1200 2900
TRANSPORT WND (MPH) W 19 NW 25
VENT RATE (MPH-FT) 24000 72500
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 16. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 6. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 11. WEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS NEAR ZERO.
NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 12. NORTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 3. WEST WINDS AROUND 5 MPH, BECOMING
SOUTH AFTER MIDNIGHT.
MONDAY
A CHANCE OF SNOW IN THE MORNING. MOSTLY CLOUDY. NOT AS
COLD. HIGHS IN THE LOWER 20S. SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 12. SOUTHWEST WINDS
AROUND 5 MPH.
ILZ006-092230-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY PCLDY
PRECIP TYPE RAIN RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 20 100 80 20
MAX TEMP (24HR TREND) 34 (+8) 33
MIN RH % (24HR TREND) 87 (+35) 79
MIN TEMP (24HR TREND) 29 (+12) 11
MAX RH % (24HR TREND) 97 (+11) 96
20FT WIND AM (MPH) SW 10-12 NW 15-20
20FT WIND PM (MPH) SW 10-12 SW 15-20 NW 15-20 NW 6-8
PEAK WIND GUSTS (MPH) 28 36 37 20
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 1000 2100
MAX MIXING HGT (FT) 1300 2700
TRANSPORT WND (MPH) W 18 NW 26
VENT RATE (MPH-FT) 23400 70200
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 12. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE MID
20S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
COLDER. LOWS AROUND 2. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 9. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS AROUND 2 BELOW.
NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 11. NORTHWEST WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 1. WEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. A CHANCE OF SNOW AND FREEZING RAIN IN
THE MORNING. NOT AS COLD. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 8. WEST WINDS AROUND
5 MPH.
INZ001-092230-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SNOW
CHANCE PRECIP (%) 10 90 80 30
MAX TEMP (24HR TREND) 35 (+10) 35
MIN RH % (24HR TREND) 85 (+26) 82
MIN TEMP (24HR TREND) 33 (+17) 16
MAX RH % (24HR TREND) 96 (+7) 97
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 7-9
PEAK WIND GUSTS (MPH) 28 35 37 25
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.05-0.10 0.00
11 AM MIXING HGT (FT) 900 2100
MAX MIXING HGT (FT) 1200 2800
TRANSPORT WND (MPH) SW 23 NW 26
VENT RATE (MPH-FT) 27600 72800
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 16. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 6. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 12. WEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS NEAR ZERO. WEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 12. WEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 1. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 20S. SOUTH WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 12. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ002-092230-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SNOW
CHANCE PRECIP (%) 10 90 90 30
MAX TEMP (24HR TREND) 35 (+12) 35
MIN RH % (24HR TREND) 83 (+21) 82
MIN TEMP (24HR TREND) 33 (+18) 18
MAX RH % (24HR TREND) 95 (+7) 95
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 8-10
PEAK WIND GUSTS (MPH) 29 36 36 27
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.05-0.10 0.01-0.05
11 AM MIXING HGT (FT) 1100 2300
MAX MIXING HGT (FT) 1400 2900
TRANSPORT WND (MPH) SW 23 NW 29
VENT RATE (MPH-FT) 32200 87000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 17. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
LOWS AROUND 8. WEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 14. WEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
LOWS AROUND 4. WEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 14. WEST WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 2. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF FREEZING RAIN. A CHANCE
OF SNOW IN THE AFTERNOON. HIGHS IN THE LOWER 20S. SOUTH WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 13.
SOUTHWEST WINDS AROUND 5 MPH.
ILZ013-092230-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 20 100 80 20
MAX TEMP (24HR TREND) 35 (+9) 34
MIN RH % (24HR TREND) 88 (+39) 79
MIN TEMP (24HR TREND) 30 (+13) 14
MAX RH % (24HR TREND) 97 (+11) 97
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 26 34 37 18
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2000
MAX MIXING HGT (FT) 1100 2700
TRANSPORT WND (MPH) W 18 NW 25
VENT RATE (MPH-FT) 19800 67500
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 14. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE MID
20S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 4. WEST WINDS
10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 10. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS AROUND 2 BELOW.
NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 10. NORTHWEST WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS NEAR ZERO. WEST WINDS AROUND 5 MPH, BECOMING
SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 9. SOUTHWEST WINDS
AROUND 5 MPH.
ILZ012-092230-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 20 100 80 20
MAX TEMP (24HR TREND) 34 (+10) 32
MIN RH % (24HR TREND) 91 (+36) 82
MIN TEMP (24HR TREND) 28 (+16) 12
MAX RH % (24HR TREND) 99 (+9) 98
20FT WIND AM (MPH) SW 10-15 NW 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 25 35 38 18
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2100
MAX MIXING HGT (FT) 900 2600
TRANSPORT WND (MPH) W 18 NW 25
VENT RATE (MPH-FT) 16200 65000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 12. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE MID
20S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 1. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 8. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 5 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 8. NORTHWEST WINDS AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 3 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 6. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ005-092230-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY PCLDY
PRECIP TYPE RAIN RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 30 100 80 20
MAX TEMP (24HR TREND) 33 (+10) 31
MIN RH % (24HR TREND) 91 (+34) 82
MIN TEMP (24HR TREND) 27 (+14) 9
MAX RH % (24HR TREND) 99 (+9) 98
20FT WIND AM (MPH) SW 10-12 NW 15-20
20FT WIND PM (MPH) SW 10-12 SW 15-20 NW 15-20 NW 5-8
PEAK WIND GUSTS (MPH) 26 36 37 17
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2100
MAX MIXING HGT (FT) 1100 2600
TRANSPORT WND (MPH) W 17 N 29
VENT RATE (MPH-FT) 18700 78000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS IN THE LOWER 20S. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 9. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE LOWER
20S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS NEAR ZERO. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 7. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS AROUND 6 BELOW.
NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 8. NORTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 3 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE MORNING. NOT AS
COLD. HIGHS AROUND 20. SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 5. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ004-092230-
BOONE-
INCLUDING THE CITY OF BELVIDERE
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 30 90 80 20
MAX TEMP (24HR TREND) 33 (+12) 31
MIN RH % (24HR TREND) 91 (+28) 81
MIN TEMP (24HR TREND) 27 (+15) 9
MAX RH % (24HR TREND) 100 (+9) 99
20FT WIND AM (MPH) SW 10-12 NW 15-20
20FT WIND PM (MPH) SW 10-12 SW 15-20 NW 15-20 NW 5-8
PEAK WIND GUSTS (MPH) 25 37 38 16
PRECIP AMOUNT (IN) 0.01-0.05 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2100
MAX MIXING HGT (FT) 900 2700
TRANSPORT WND (MPH) W 16 N 29
VENT RATE (MPH-FT) 14400 81000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 9. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE LOWER
20S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 1 BELOW.
NORTHWEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 7. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 8 BELOW. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 7. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 5 BELOW. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS AROUND 20. SOUTH
WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 3. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ011-092230-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 30 90 80 20
MAX TEMP (24HR TREND) 34 (+13) 31
MIN RH % (24HR TREND) 92 (+27) 83
MIN TEMP (24HR TREND) 27 (+14) 12
MAX RH % (24HR TREND) 99 (+7) 99
20FT WIND AM (MPH) SW 10-12 NW 15-20
20FT WIND PM (MPH) SW 10-12 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 25 36 39 18
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 700 2000
MAX MIXING HGT (FT) 800 2700
TRANSPORT WND (MPH) W 17 NW 25
VENT RATE (MPH-FT) 13600 67500
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 12. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE MID
20S. SOUTH WINDS AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 1. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 8. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 7 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 7. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 4 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS AROUND 20. SOUTH
WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 5. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ003-092230-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN SNOW SHOWERS NONE
CHANCE PRECIP (%) 40 100 70 10
MAX TEMP (24HR TREND) 33 (+11) 31
MIN RH % (24HR TREND) 90 (+24) 80
MIN TEMP (24HR TREND) 26 (+10) 9
MAX RH % (24HR TREND) 100 (+11) 98
20FT WIND AM (MPH) SW 9-11 NW 15-20
20FT WIND PM (MPH) SW 9-11 SW 15-20 NW 15-20 NW 5-8
PEAK WIND GUSTS (MPH) 24 39 38 16
PRECIP AMOUNT (IN) 0.01-0.05 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2200
MAX MIXING HGT (FT) 900 2900
TRANSPORT WND (MPH) W 16 N 29
VENT RATE (MPH-FT) 14400 87000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 10. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE MORNING. HIGHS
IN THE LOWER 20S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 1 BELOW.
NORTHWEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 7. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 8 BELOW. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 8. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 5 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 3. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ008-092230-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE RAIN RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 30 90 70 10
MAX TEMP (24HR TREND) 34 (+12) 31
MIN RH % (24HR TREND) 91 (+25) 80
MIN TEMP (24HR TREND) 26 (+9) 11
MAX RH % (24HR TREND) 100 (+10) 100
20FT WIND AM (MPH) SW 10-11 NW 15-20
20FT WIND PM (MPH) SW 10-11 SW 15-20 NW 15-20 NW 5-8
PEAK WIND GUSTS (MPH) 24 38 39 16
PRECIP AMOUNT (IN) 0.01-0.05 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 700 2100
MAX MIXING HGT (FT) 800 2900
TRANSPORT WND (MPH) W 16 N 29
VENT RATE (MPH-FT) 12800 87000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 20S. NORTHWEST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 11. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE MORNING. HIGHS
IN THE MID 20S. SOUTH WINDS AROUND 10 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS NEAR ZERO. NORTHWEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 8. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 8 BELOW. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 7. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 5 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 4. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ010-092230-
LEE-
INCLUDING THE CITY OF DIXON
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE RAIN SNOW SHOWERS SNOW
CHANCE PRECIP (%) 30 90 80 10
MAX TEMP (24HR TREND) 35 (+14) 31
MIN RH % (24HR TREND) 93 (+27) 83
MIN TEMP (24HR TREND) 27 (+11) 13
MAX RH % (24HR TREND) 100 (+9) 99
20FT WIND AM (MPH) SW 9-11 NW 15-20
20FT WIND PM (MPH) SW 9-11 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 23 37 40 17
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 600 2100
MAX MIXING HGT (FT) 700 2800
TRANSPORT WND (MPH) W 14 NW 29
VENT RATE (MPH-FT) 10500 84000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 20S. NORTHWEST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 13. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE MID
20S. SOUTHEAST WINDS AROUND 10 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 1. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 9. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 8 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 7. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 4 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 5. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ019-092230-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SNOW SHOWERS SNOW
CHANCE PRECIP (%) 20 90 80 20
MAX TEMP (24HR TREND) 36 (+13) 33
MIN RH % (24HR TREND) 90 (+27) 81
MIN TEMP (24HR TREND) 29 (+13) 16
MAX RH % (24HR TREND) 97 (+7) 96
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 7-10
PEAK WIND GUSTS (MPH) 24 36 40 18
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 700 2100
MAX MIXING HGT (FT) 700 2700
TRANSPORT WND (MPH) W 18 NW 25
VENT RATE (MPH-FT) 12600 67500
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 16. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. NORTH WINDS AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 4. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 10. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COLDER. LOWS AROUND 6 BELOW. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 8. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 3 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 7. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ020-092230-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLOUDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SNOW SHOWERS SNOW
CHANCE PRECIP (%) 20 100 80 20
MAX TEMP (24HR TREND) 35 (+11) 34
MIN RH % (24HR TREND) 91 (+32) 82
MIN TEMP (24HR TREND) 29 (+16) 14
MAX RH % (24HR TREND) 97 (+6) 99
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 25 34 38 18
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 700 1900
MAX MIXING HGT (FT) 800 2600
TRANSPORT WND (MPH) W 18 NW 25
VENT RATE (MPH-FT) 14400 65000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 14. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE MID
20S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 3. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 9. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 5 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 8. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 3 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 7. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ021-092230-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SNOW SHOWERS SNOW
CHANCE PRECIP (%) 20 90 70 20
MAX TEMP (24HR TREND) 36 (+13) 34
MIN RH % (24HR TREND) 90 (+23) 83
MIN TEMP (24HR TREND) 30 (+15) 16
MAX RH % (24HR TREND) 97 (+6) 99
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 25 33 39 18
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 700 2000
MAX MIXING HGT (FT) 800 2800
TRANSPORT WND (MPH) SW 18 NW 28
VENT RATE (MPH-FT) 14400 81200
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 17. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. WEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 4. NORTHWEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 11. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 5 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 8. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 3 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 8.
SOUTHWEST WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ022-092230-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SNOW SHOWERS SNOW
CHANCE PRECIP (%) 10 100 80 20
MAX TEMP (24HR TREND) 35 (+11) 35
MIN RH % (24HR TREND) 90 (+32) 83
MIN TEMP (24HR TREND) 31 (+15) 15
MAX RH % (24HR TREND) 98 (+8) 100
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 27 34 39 18
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2100
MAX MIXING HGT (FT) 900 2700
TRANSPORT WND (MPH) SW 19 NW 28
VENT RATE (MPH-FT) 18000 78300
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 15. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 4. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 11. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 4 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 9. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 2 BELOW. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
MOSTLY CLOUDY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 9.
SOUTHWEST WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ032-092230-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SNOW SHOWERS SNOW
CHANCE PRECIP (%) 10 80 80 20
MAX TEMP (24HR TREND) 37 (+14) 35
MIN RH % (24HR TREND) 90 (+25) 84
MIN TEMP (24HR TREND) 31 (+19) 17
MAX RH % (24HR TREND) 96 (+7) 99
20FT WIND AM (MPH) SW 10-15 W 20-25
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 20-25 NW 7-10
PEAK WIND GUSTS (MPH) 25 32 40 18
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 600 2100
MAX MIXING HGT (FT) 700 2800
TRANSPORT WND (MPH) SW 19 NW 26
VENT RATE (MPH-FT) 14000 72800
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 18. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTHEAST WINDS AROUND 10 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 5. NORTHWEST
WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 12. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COLDER. LOWS AROUND 5 BELOW. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 9. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 3 BELOW. NORTHWEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 8. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ023-092230-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SNOW SHOWERS SNOW
CHANCE PRECIP (%) 10 90 80 20
MAX TEMP (24HR TREND) 35 (+12) 35
MIN RH % (24HR TREND) 88 (+25) 86
MIN TEMP (24HR TREND) 32 (+17) 16
MAX RH % (24HR TREND) 97 (+3) 100
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 27 33 39 17
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 700 1900
MAX MIXING HGT (FT) 800 2700
TRANSPORT WND (MPH) SW 20 NW 26
VENT RATE (MPH-FT) 16800 70200
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 17. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 4. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER. HIGHS
AROUND 11. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 4 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 8. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 3 BELOW. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 8. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ039-092230-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SNOW
CHANCE PRECIP (%) 10 70 80 20
MAX TEMP (24HR TREND) 37 (+14) 35
MIN RH % (24HR TREND) 88 (+23) 84
MIN TEMP (24HR TREND) 33 (+19) 18
MAX RH % (24HR TREND) 95 (0) 97
20FT WIND AM (MPH) SW 10-15 W 20-25
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 20-25 NW 7-10
PEAK WIND GUSTS (MPH) 26 33 40 17
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 700 2400
MAX MIXING HGT (FT) 700 2700
TRANSPORT WND (MPH) SW 20 NW 29
VENT RATE (MPH-FT) 14700 81000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 18. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE MORNING. HIGHS
AROUND 30. SOUTHEAST WINDS AROUND 10 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 6. NORTHWEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 13. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COLDER. LOWS AROUND 4 BELOW. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 9. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 2 BELOW. WEST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 8. SOUTH WINDS AROUND
5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ033-092230-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SNOW
CHANCE PRECIP (%) 10 70 80 20
MAX TEMP (24HR TREND) 36 (+13) 36
MIN RH % (24HR TREND) 85 (+19) 83
MIN TEMP (24HR TREND) 33 (+19) 17
MAX RH % (24HR TREND) 96 (+1) 96
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-8
PEAK WIND GUSTS (MPH) 27 33 39 16
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2300
MAX MIXING HGT (FT) 900 2600
TRANSPORT WND (MPH) SW 23 NW 23
VENT RATE (MPH-FT) 20700 59800
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 18. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE MORNING. HIGHS
IN THE UPPER 20S. SOUTH WINDS AROUND 5 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 6. NORTHWEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 12. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COLDER. LOWS AROUND 4 BELOW. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 9. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 2 BELOW. WEST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 8. SOUTH WINDS AROUND
5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ010-092230-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SNOW
CHANCE PRECIP (%) 10 80 80 20
MAX TEMP (24HR TREND) 36 (+13) 35
MIN RH % (24HR TREND) 85 (+19) 87
MIN TEMP (24HR TREND) 33 (+20) 17
MAX RH % (24HR TREND) 95 (-4) 94
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 27 33 38 18
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2000
MAX MIXING HGT (FT) 900 2400
TRANSPORT WND (MPH) SW 24 NW 26
VENT RATE (MPH-FT) 21600 62400
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 18. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTH WINDS AROUND 5 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 6. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 12. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 3 BELOW. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 9. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 2 BELOW. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 9. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ011-092230-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
449 AM CST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SNOW
CHANCE PRECIP (%) 10 90 80 20
MAX TEMP (24HR TREND) 36 (+13) 35
MIN RH % (24HR TREND) 84 (+20) 88
MIN TEMP (24HR TREND) 34 (+21) 18
MAX RH % (24HR TREND) 95 (-4) 94
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 7-10
PEAK WIND GUSTS (MPH) 27 35 37 19
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.01-0.05 0.00
11 AM MIXING HGT (FT) 800 2200
MAX MIXING HGT (FT) 900 2200
TRANSPORT WND (MPH) SW 24 NW 31
VENT RATE (MPH-FT) 21600 68200
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 18. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS IN THE UPPER
20S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 7. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 12. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 1 BELOW. WEST WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 10. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 1 BELOW. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. NOT AS COLD. LOWS AROUND 10. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ019-092230-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
549 AM EST TUE DEC 9 2025
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY CLOUDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SNOW
CHANCE PRECIP (%) 10 80 80 20
MAX TEMP (24HR TREND) 36 (+13) 36
MIN RH % (24HR TREND) 83 (+21) 85
MIN TEMP (24HR TREND) 34 (+19) 18
MAX RH % (24HR TREND) 93 (-1) 92
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 NW 15-20 NW 6-9
PEAK WIND GUSTS (MPH) 27 34 38 19
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.01-0.05 0.00
11 AM MIXING HGT (FT) 900 2100
MAX MIXING HGT (FT) 900 2300
TRANSPORT WND (MPH) SW 26 NW 27
VENT RATE (MPH-FT) 23400 64400
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 19. WEST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE MORNING. HIGHS
AROUND 30. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 8. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 13. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COLDER. LOWS AROUND 2 BELOW. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 9. NORTHWEST WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS NEAR ZERO. WEST WINDS AROUND
5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE LOWER 20S.
SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 10. SOUTH WINDS AROUND
5 MPH, BECOMING WEST AFTER MIDNIGHT.
OGOREK
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page