933
FNUS53 KLOT 180950
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
350 AM CST SUN JAN 18 2026
DISCUSSION
ANOTHER PERIOD OF LIGHT ACCUMULATING SNOW IS EXPECTED
LATE THIS AFTERNOON INTO THIS EVENING. SNOWFALL AMOUNTS AROUND ONE
INCH ARE EXPECTED. A STRONG ARCTIC COLD FRONT WILL MOVE ACROSS THE
AREA LATE THIS EVENING WITH WEST NORTHWEST WINDS GUSTING TO 40 MPH
BEHIND THE COLD FRONT AND CONTINUING THROUGH DAYBREAK MONDAY MORNING.
MUCH COLDER AIR WILL SPREAD ACROSS THE AREA TONIGHT WITH WIND CHILLS
15 BELOW TO 25 BELOW ZERO THROUGH MID MORNING MONDAY. ANOTHER
CLIPPER SYSTEM MAY BRING ACCUMULATING SNOW TO THE AREA TUESDAY NIGHT
INTO WEDNESDAY MORNING. AN ACTIVE PATTERN IS POSSIBLE LATE THIS WEEK
INTO THE WEEKEND, THOUGH THERE REMAINS QUITE A BIT OF UNCERTAINTY.
THOUGH THE OVERALL PATTERN SUPPORTS CONTINUED VERY COLD TEMPERATURES.
ILZ014-182230-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 60 90
MAX TEMP (24HR TREND) 20 (+3) 10
MIN RH % (24HR TREND) 51 (0) 57
MIN TEMP (24HR TREND) 1 (-8) 1
MAX RH % (24HR TREND) 83 (+4) 74
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 W 15-20 W 8-9
PEAK WIND GUSTS (MPH) 21 36 34 19
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2300 2600
MAX MIXING HGT (FT) 3400 3000
TRANSPORT WND (MPH) SW 19 W 26
VENT RATE (MPH-FT) 68000 78000
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
16. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS AROUND 30. SOUTHWEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 11. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. COLDER. HIGHS AROUND 20. WEST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 14. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE UPPER 20S. SOUTH WINDS AROUND 10 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
11. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 17. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS NEAR ZERO. NORTH WINDS AROUND 10 MPH.
ILZ006-182230-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 80 90
MAX TEMP (24HR TREND) 18 (+1) 7
MIN RH % (24HR TREND) 58 (-1) 58
MIN TEMP (24HR TREND) 0 (-7) -1
MAX RH % (24HR TREND) 90 (+7) 78
20FT WIND AM (MPH) SW 12 W 15-20
20FT WIND PM (MPH) SW 12 SW 15-20 W 15-20 W 8-9
PEAK WIND GUSTS (MPH) 20 35 32 19
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2100 2400
MAX MIXING HGT (FT) 3000 2800
TRANSPORT WND (MPH) SW 19 NW 28
VENT RATE (MPH-FT) 60000 81200
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS AROUND 19. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
HIGHS IN THE UPPER 20S. WEST WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 8. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 18. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 11. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
7. NORTHWEST WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 14. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 2 BELOW. NORTH WINDS AROUND 10 MPH.
INZ001-182230-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 50 90
MAX TEMP (24HR TREND) 21 (+4) 9
MIN RH % (24HR TREND) 51 (0) 56
MIN TEMP (24HR TREND) 3 (-6) 2
MAX RH % (24HR TREND) 82 (+5) 71
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 W 15-20 W 6-9
PEAK WIND GUSTS (MPH) 21 36 34 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2700
MAX MIXING HGT (FT) 3400 3100
TRANSPORT WND (MPH) SW 20 W 26
VENT RATE (MPH-FT) 71400 80600
VENT RATE CATEGORY GOOD GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AFTER MIDNIGHT.
LOWS AROUND 16. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 12. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. COLDER. HIGHS IN THE LOWER 20S. WEST
WINDS AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 14. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
AROUND 30. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
12. NORTH WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 18. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 1. NORTH WINDS AROUND 10 MPH.
INZ002-182230-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE NONE SNOW SNOW NONE
CHANCE PRECIP (%) 50 90 10 10
MAX TEMP (24HR TREND) 21 (+4) 11
MIN RH % (24HR TREND) 53 (+5) 57
MIN TEMP (24HR TREND) 3 (-7) 1
MAX RH % (24HR TREND) 82 (+4) 71
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 W 15-20 W 8-9
PEAK WIND GUSTS (MPH) 21 39 34 21
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2800
MAX MIXING HGT (FT) 3400 3200
TRANSPORT WND (MPH) SW 20 W 25
VENT RATE (MPH-FT) 71400 80000
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AFTER MIDNIGHT.
LOWS AROUND 15. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 13. WEST WINDS AROUND 10 MPH.
THURSDAY
PARTLY SUNNY. COLDER. HIGHS AROUND 20. WEST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 14. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE UPPER 20S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 19. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 3. NORTH WINDS AROUND 10 MPH.
ILZ013-182230-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 60 90
MAX TEMP (24HR TREND) 19 (+2) 8
MIN RH % (24HR TREND) 54 (+3) 57
MIN TEMP (24HR TREND) 0 (-8) 1
MAX RH % (24HR TREND) 84 (+4) 75
20FT WIND AM (MPH) SW 12 W 15-20
20FT WIND PM (MPH) SW 12 W 15-20 W 15-20 W 8-10
PEAK WIND GUSTS (MPH) 19 33 30 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2300 2500
MAX MIXING HGT (FT) 3100 2900
TRANSPORT WND (MPH) SW 18 W 26
VENT RATE (MPH-FT) 55800 75400
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
15. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 20S. WEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 11. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 20. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 13. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE UPPER 20S. SOUTH WINDS AROUND 10 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
9. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 16. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 1 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ012-182230-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 70 90
MAX TEMP (24HR TREND) 19 (+2) 6
MIN RH % (24HR TREND) 54 (-2) 60
MIN TEMP (24HR TREND) -1 (-8) -1
MAX RH % (24HR TREND) 85 (-1) 80
20FT WIND AM (MPH) SW 12 W 15-20
20FT WIND PM (MPH) SW 12 W 15-20 W 15-20 W 7-10
PEAK WIND GUSTS (MPH) 20 34 30 19
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2300 2600
MAX MIXING HGT (FT) 3000 2900
TRANSPORT WND (MPH) SW 19 NW 27
VENT RATE (MPH-FT) 60000 81200
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 20S. WEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 9. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 18. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 11. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. SOUTH WINDS AROUND
10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
7. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 14. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 3 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ005-182230-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 80 90
MAX TEMP (24HR TREND) 17 (+1) 5
MIN RH % (24HR TREND) 64 (-2) 61
MIN TEMP (24HR TREND) -1 (-7) -2
MAX RH % (24HR TREND) 86 (0) 82
20FT WIND AM (MPH) SW 12 W 15-20
20FT WIND PM (MPH) SW 12 W 15-20 W 15-20 W 6-9
PEAK WIND GUSTS (MPH) 20 33 30 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2200 2400
MAX MIXING HGT (FT) 2700 2700
TRANSPORT WND (MPH) SW 19 NW 28
VENT RATE (MPH-FT) 54000 78300
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS AROUND 19. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
10. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON.
HIGHS IN THE MID 20S. WEST WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 6. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 17. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 9. SOUTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
4. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 12. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 5 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ004-182230-
BOONE-
INCLUDING THE CITY OF BELVIDERE
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 80 90
MAX TEMP (24HR TREND) 18 (+2) 5
MIN RH % (24HR TREND) 59 (-9) 61
MIN TEMP (24HR TREND) -2 (-8) -3
MAX RH % (24HR TREND) 85 (-1) 84
20FT WIND AM (MPH) SW 11-12 NW 15-20
20FT WIND PM (MPH) SW 11-12 W 15-20 W 15-20 W 6-9
PEAK WIND GUSTS (MPH) 19 33 29 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2200 2500
MAX MIXING HGT (FT) 2600 2700
TRANSPORT WND (MPH) SW 18 NW 27
VENT RATE (MPH-FT) 46800 75600
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS AROUND 19. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
10. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 6. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 17. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 8. SOUTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 20S. SOUTH WINDS
AROUND 10 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 2. NORTH WINDS AROUND
10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 11. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS
AROUND 6 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ011-182230-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 70 90
MAX TEMP (24HR TREND) 19 (+2) 6
MIN RH % (24HR TREND) 54 (-6) 58
MIN TEMP (24HR TREND) -2 (-8) -1
MAX RH % (24HR TREND) 86 (+1) 80
20FT WIND AM (MPH) SW 12 NW 15-20
20FT WIND PM (MPH) SW 12 W 15-20 W 15-20 W 6-9
PEAK WIND GUSTS (MPH) 19 34 30 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2600
MAX MIXING HGT (FT) 2900 2800
TRANSPORT WND (MPH) SW 18 W 27
VENT RATE (MPH-FT) 52200 78400
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 20S. WEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 8. WEST WINDS
AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 19. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 11. SOUTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. SOUTH WINDS AROUND
10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
LOWS AROUND 6. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 13. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 4 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ003-182230-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 90 90
MAX TEMP (24HR TREND) 19 (+2) 5
MIN RH % (24HR TREND) 55 (-10) 58
MIN TEMP (24HR TREND) -2 (-7) -2
MAX RH % (24HR TREND) 83 (-2) 82
20FT WIND AM (MPH) SW 11-12 NW 15-20
20FT WIND PM (MPH) SW 11-12 W 15-20 W 15-20 W 6-9
PEAK WIND GUSTS (MPH) 19 34 29 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2300 2500
MAX MIXING HGT (FT) 2600 2800
TRANSPORT WND (MPH) SW 18 NW 26
VENT RATE (MPH-FT) 46800 72800
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS AROUND 19. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
11. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 6. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 18. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 9. SOUTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 20S. SOUTH WINDS
AROUND 10 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 2. NORTH WINDS AROUND
10 MPH.
SATURDAY
PARTLY SUNNY. COLDER. HIGHS AROUND 10. NORTH WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
LOWS AROUND 6 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ008-182230-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 80 90
MAX TEMP (24HR TREND) 19 (+3) 6
MIN RH % (24HR TREND) 54 (-6) 58
MIN TEMP (24HR TREND) -2 (-8) -1
MAX RH % (24HR TREND) 84 (0) 80
20FT WIND AM (MPH) SW 11-12 NW 15-20
20FT WIND PM (MPH) SW 11-12 W 15-20 W 15-20 W 6-8
PEAK WIND GUSTS (MPH) 19 34 29 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2500
MAX MIXING HGT (FT) 2700 2800
TRANSPORT WND (MPH) SW 18 NW 26
VENT RATE (MPH-FT) 48600 72800
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. WEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 8. WEST WINDS
AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 19. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 11. SOUTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. SOUTH WINDS AROUND
10 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 3. NORTH WINDS AROUND
10 MPH.
SATURDAY
PARTLY SUNNY. COLDER. HIGHS AROUND 12. NORTH WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
LOWS AROUND 5 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ010-182230-
LEE-
INCLUDING THE CITY OF DIXON
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 70 80
MAX TEMP (24HR TREND) 20 (+3) 7
MIN RH % (24HR TREND) 53 (-4) 56
MIN TEMP (24HR TREND) -1 (-7) 0
MAX RH % (24HR TREND) 85 (-1) 75
20FT WIND AM (MPH) SW 12 NW 15-20
20FT WIND PM (MPH) SW 12 W 15-20 W 15-20 W 6-8
PEAK WIND GUSTS (MPH) 19 34 29 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2600
MAX MIXING HGT (FT) 2700 3000
TRANSPORT WND (MPH) SW 19 NW 27
VENT RATE (MPH-FT) 54000 84000
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
15. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 20S. WEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 9. WEST WINDS
AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 13. SOUTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 20S. SOUTH WINDS AROUND
10 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 6. NORTH WINDS AROUND
10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 13. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
COLDER. LOWS AROUND 4 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ019-182230-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 50 70
MAX TEMP (24HR TREND) 21 (+3) 10
MIN RH % (24HR TREND) 49 (0) 46
MIN TEMP (24HR TREND) 0 (-8) 2
MAX RH % (24HR TREND) 82 (+6) 66
20FT WIND AM (MPH) SW 11-12 NW 15-20
20FT WIND PM (MPH) SW 11-12 W 15-20 W 15-20 W 6-8
PEAK WIND GUSTS (MPH) 20 34 29 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2500 2800
MAX MIXING HGT (FT) 3000 3200
TRANSPORT WND (MPH) SW 19 W 26
VENT RATE (MPH-FT) 60000 83200
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
18. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS AROUND 30. WEST WINDS AROUND
15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 12. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 16. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS AROUND 30. SOUTH WINDS AROUND
10 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
LOWS AROUND 10. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 16. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 2 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ020-182230-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 60 80
MAX TEMP (24HR TREND) 20 (+3) 8
MIN RH % (24HR TREND) 50 (-3) 56
MIN TEMP (24HR TREND) 0 (-8) 1
MAX RH % (24HR TREND) 83 (-1) 73
20FT WIND AM (MPH) SW 12 W 15-20
20FT WIND PM (MPH) SW 12 W 15-20 W 15-20 W 6-9
PEAK WIND GUSTS (MPH) 19 34 29 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2700
MAX MIXING HGT (FT) 3300 3100
TRANSPORT WND (MPH) SW 18 W 26
VENT RATE (MPH-FT) 59400 80600
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
16. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS AROUND 30. WEST WINDS 10 TO
15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 11. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 14. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 20S. SOUTH WINDS
AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
10. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 16. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 1 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ021-182230-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE SNOW SNOW NONE NONE
CHANCE PRECIP (%) 40 70
MAX TEMP (24HR TREND) 21 (+3) 10
MIN RH % (24HR TREND) 48 (-1) 51
MIN TEMP (24HR TREND) 1 (-7) 3
MAX RH % (24HR TREND) 81 (+7) 67
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 W 15-20 W 15-20 W 6-8
PEAK WIND GUSTS (MPH) 20 34 29 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2800
MAX MIXING HGT (FT) 3400 3300
TRANSPORT WND (MPH) SW 19 W 26
VENT RATE (MPH-FT) 68000 85800
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
19. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 13. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 16. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTH WINDS
AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
11. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 17. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 1 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ022-182230-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 50 90
MAX TEMP (24HR TREND) 20 (+3) 9
MIN RH % (24HR TREND) 50 (-3) 56
MIN TEMP (24HR TREND) 1 (-7) 2
MAX RH % (24HR TREND) 85 (+5) 74
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 W 15-20 W 15-20 W 6-9
PEAK WIND GUSTS (MPH) 20 34 30 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2800
MAX MIXING HGT (FT) 3400 3200
TRANSPORT WND (MPH) SW 20 W 26
VENT RATE (MPH-FT) 71400 83200
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AFTER MIDNIGHT.
LOWS AROUND 17. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS AROUND 30. SOUTHWEST WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 12. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. WEST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 14. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE UPPER 20S. SOUTH WINDS AROUND 10 MPH, BECOMING WEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
11. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 17. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS NEAR ZERO. NORTH WINDS AROUND 10 MPH.
ILZ032-182230-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY MCLEAR PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 22 (+4) 11
MIN RH % (24HR TREND) 48 (+5) 46
MIN TEMP (24HR TREND) 2 (-6) 3
MAX RH % (24HR TREND) 77 (+8) 62
20FT WIND AM (MPH) SW 10-15 NW 15-20
20FT WIND PM (MPH) SW 10-15 W 20-25 W 15-20 W 7-8
PEAK WIND GUSTS (MPH) 20 34 30 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2900
MAX MIXING HGT (FT) 3200 3400
TRANSPORT WND (MPH) SW 20 W 26
VENT RATE (MPH-FT) 67200 88400
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 19. SOUTH WINDS 10 TO
15 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 13. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 17. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTHWEST WINDS
AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
12. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 19. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
COLDER. LOWS AROUND 1 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ023-182230-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 40 80
MAX TEMP (24HR TREND) 21 (+3) 10
MIN RH % (24HR TREND) 48 (-1) 52
MIN TEMP (24HR TREND) 2 (-7) 2
MAX RH % (24HR TREND) 81 (+8) 69
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 W 15-20 W 15-20 W 6-8
PEAK WIND GUSTS (MPH) 20 34 29 16
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2800
MAX MIXING HGT (FT) 3400 3300
TRANSPORT WND (MPH) SW 20 W 26
VENT RATE (MPH-FT) 71400 85800
VENT RATE CATEGORY GOOD GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AFTER MIDNIGHT.
LOWS AROUND 18. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 13. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. COLDER. HIGHS IN THE LOWER 20S. WEST
WINDS AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 15. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
12. NORTH WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 18. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS NEAR ZERO. NORTH WINDS AROUND 10 MPH.
ILZ039-182230-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY MCLEAR PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 20 30
MAX TEMP (24HR TREND) 22 (+5) 11
MIN RH % (24HR TREND) 48 (+1) 44
MIN TEMP (24HR TREND) 3 (-5) 3
MAX RH % (24HR TREND) 77 (+5) 62
20FT WIND AM (MPH) SW 10-15 NW 15-20
20FT WIND PM (MPH) SW 10-15 W 15-20 W 15-20 W 7-8
PEAK WIND GUSTS (MPH) 20 34 30 16
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2800
MAX MIXING HGT (FT) 3300 3400
TRANSPORT WND (MPH) SW 21 W 25
VENT RATE (MPH-FT) 72600 85000
VENT RATE CATEGORY GOOD GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. SOUTHWEST WINDS
10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 20. SOUTH WINDS 10 TO
15 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE MID 30S. SOUTHWEST WINDS
AROUND 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 14. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 17. SOUTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. NORTH WINDS AROUND 10 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 20. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE EVENING.
COLDER. LOWS AROUND 1 BELOW. NORTH WINDS AROUND 10 MPH.
ILZ033-182230-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 20 60
MAX TEMP (24HR TREND) 22 (+4) 11
MIN RH % (24HR TREND) 47 (-1) 45
MIN TEMP (24HR TREND) 3 (-6) 3
MAX RH % (24HR TREND) 78 (+4) 63
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 W 15-20 W 15-20 W 5-7
PEAK WIND GUSTS (MPH) 20 34 30
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2900
MAX MIXING HGT (FT) 3400 3400
TRANSPORT WND (MPH) SW 21 W 25
VENT RATE (MPH-FT) 74800 85000
VENT RATE CATEGORY GOOD GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 19. SOUTH WINDS
AROUND 10 MPH.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 14. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 20S. WEST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 17. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. NORTH WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 20. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS NEAR ZERO. NORTH WINDS AROUND 10 MPH.
INZ010-182230-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 30 80
MAX TEMP (24HR TREND) 22 (+3) 10
MIN RH % (24HR TREND) 51 (+1) 52
MIN TEMP (24HR TREND) 4 (-5) 3
MAX RH % (24HR TREND) 82 (+7) 66
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 W 15-20 W 6-7
PEAK WIND GUSTS (MPH) 20 33 29
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2700
MAX MIXING HGT (FT) 3400 3300
TRANSPORT WND (MPH) SW 20 W 25
VENT RATE (MPH-FT) 71400 82500
VENT RATE CATEGORY GOOD GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AFTER MIDNIGHT.
LOWS AROUND 17. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 14. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. COLDER. HIGHS IN THE LOWER 20S. WEST
WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 16. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. NORTH WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 19. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 1. NORTH WINDS AROUND 10 MPH.
INZ011-182230-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
350 AM CST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 30 80
MAX TEMP (24HR TREND) 22 (+3) 10
MIN RH % (24HR TREND) 53 (+3) 55
MIN TEMP (24HR TREND) 4 (-6) 3
MAX RH % (24HR TREND) 82 (+6) 66
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 W 15-20 W 6-8
PEAK WIND GUSTS (MPH) 20 33 29 16
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2700
MAX MIXING HGT (FT) 3300 3200
TRANSPORT WND (MPH) SW 20 W 25
VENT RATE (MPH-FT) 69300 80000
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AFTER MIDNIGHT.
LOWS AROUND 17. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 13. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY SUNNY. COLDER. HIGHS IN THE LOWER 20S. WEST
WINDS AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 15. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
13. NORTH WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 19. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 1. NORTH WINDS AROUND 10 MPH.
INZ019-182230-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
450 AM EST SUN JAN 18 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY CLOUDY PCLDY PCLDY
PRECIP TYPE NONE SNOW NONE NONE
CHANCE PRECIP (%) 20 60
MAX TEMP (24HR TREND) 23 (+5) 11
MIN RH % (24HR TREND) 51 (-3) 48
MIN TEMP (24HR TREND) 4 (-5) 3
MAX RH % (24HR TREND) 82 (+4) 65
20FT WIND AM (MPH) SW 10-15 W 15-20
20FT WIND PM (MPH) SW 10-15 SW 15-20 W 15-20 W 5-7
PEAK WIND GUSTS (MPH) 21 33 29
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2300 2700
MAX MIXING HGT (FT) 3300 3400
TRANSPORT WND (MPH) SW 21 W 26
VENT RATE (MPH-FT) 72600 88400
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 18. SOUTH WINDS 10 TO
15 MPH.
WEDNESDAY
PARTLY SUNNY. NOT AS COLD. HIGHS IN THE MID 30S.
SOUTHWEST WINDS AROUND 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 15. WEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY SUNNY. COLDER. HIGHS IN THE MID 20S. WEST
WINDS AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 17. WEST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SNOW IN THE AFTERNOON. HIGHS
IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
14. NORTH WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. A CHANCE OF SNOW IN THE AFTERNOON.
COLDER. HIGHS AROUND 20. NORTH WINDS AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.
LOWS AROUND 2. NORTH WINDS AROUND 10 MPH.
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