216
FNUS53 KLOT 211015
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
415 AM CST SUN DEC 21 2025
DISCUSSION
HIGH PRESSURE WILL SETTLE OVER NORTHERN IL AND NORTHWEST IN TODAY
RESULTING IN SUNNY SKIES AND LIGHT WINDS (5-10 MPH). WIND
DIRECTIONS WILL START OFF OUT OF THE NORTHWEST THIS MORNING BUT
WILL TURN SOUTHWESTERLY THIS AFTERNOON. DESPITE THE SUNSHINE,
TEMPERATURES ARE ONLY EXPECTED TO WARM INTO THE LOW TO MID-30S
TODAY (UPPER 20S NEAR IL-WI LINE).
A MORE NOTABLE WARM UP WILL BEGIN ON MONDAY AND PERSIST THROUGH
THE END OF THE WEEK. TEMPERATURES DURING THIS PERIOD ARE FORECAST
TO BE GENERALLY IN THE 40S TO NEAR 50 DURING THE DAY AND 30S AT
NIGHT, BUT THERE REMAINS A CHANCE FOR HIGHS NEAR 60 IN SPOTS ON
THURSDAY. OTHERWISE, EXPECT MOSTLY DRY CONDITIONS TO PERSIST
THROUGH THE WEEK THOUGH SOME INSTANCES OF RAIN AND/OR DRIZZLE ARE
POSSIBLE WEDNESDAY AND THURSDAY. WINDS DURING THIS PERIOD WILL
ALSO GENERALLY BE IN THE 10-15 MPH RANGE AND OUT OF THE SOUTH, BUT
BREEZY SOUTHWEST WINDS GUSTING 20-25 MPH ARE EXPECTED FOR MONDAY
AFTERNOON.
ILZ014-212215-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
MAX TEMP (24HR TREND) 31 (-9) 42
MIN RH % (24HR TREND) 44 (-12) 45
MIN TEMP (24HR TREND) 23 (+4) 36
MAX RH % (24HR TREND) 71 (+8) 100
20FT WIND AM (MPH) NW 5 S 11
20FT WIND PM (MPH) SW 5 S 6-8 S 11 SW 7
PEAK WIND GUSTS (MPH) 15 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1400
MAX MIXING HGT (FT) 1400 1700
TRANSPORT WND (MPH) SW 8 S 23
VENT RATE (MPH-FT) 11200 39100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS, BECOMING NORTH AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE MID 40S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. LOWS IN THE LOWER 40S. SOUTH WINDS AROUND 5 MPH,
BECOMING NORTH AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE UPPER 40S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. NORTH WINDS
AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ006-212215-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY CLOUDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
MAX TEMP (24HR TREND) 28 (-12) 41
MIN RH % (24HR TREND) 47 (-2) 49
MIN TEMP (24HR TREND) 21 (+6) 34
MAX RH % (24HR TREND) 76 (+13) 99
20FT WIND AM (MPH) W 5-6 S 11
20FT WIND PM (MPH) SW 5-6 S 6-8 S 11 SW 6
PEAK WIND GUSTS (MPH) 16 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1100 1400
MAX MIXING HGT (FT) 1300 1700
TRANSPORT WND (MPH) SW 10 S 24
VENT RATE (MPH-FT) 13000 40800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 40S. WEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 30. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE LOWER 40S. SOUTHEAST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. LOWS IN THE UPPER 30S. LIGHT WINDS.
THURSDAY
CLOUDY. HIGHS IN THE MID 40S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 20S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
INZ001-212215-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 32 (-10) 42
MIN RH % (24HR TREND) 44 (-14) 45
MIN TEMP (24HR TREND) 23 (+1) 36
MAX RH % (24HR TREND) 74 (+1) 100
20FT WIND AM (MPH) LGT/VAR S 11
20FT WIND PM (MPH) SW 4-6 LGT/VAR S 11 S 8
PEAK WIND GUSTS (MPH) 21 15
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1300
MAX MIXING HGT (FT) 1500 1800
TRANSPORT WND (MPH) SW 5 S 19
VENT RATE (MPH-FT) 9000 36000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS, BECOMING NORTH AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE MID 40S. SOUTHEAST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE MID 40S. SOUTH WINDS AROUND
5 MPH.
THURSDAY
CLOUDY. HIGHS IN THE LOWER 50S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS AROUND 40. SOUTHWEST WINDS AROUND
10 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. NORTH WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
INZ002-212215-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 31 (-11) 42
MIN RH % (24HR TREND) 45 (-10) 44
MIN TEMP (24HR TREND) 22 (-1) 36
MAX RH % (24HR TREND) 73 (+2) 100
20FT WIND AM (MPH) LGT/VAR S 11-12
20FT WIND PM (MPH) SW 4-7 S 5-7 S 11-12 S 7
PEAK WIND GUSTS (MPH) 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1500 1300
MAX MIXING HGT (FT) 1600 2000
TRANSPORT WND (MPH) NW 16 S 20
VENT RATE (MPH-FT) 25600 42000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE MID 40S. SOUTHEAST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE MID 40S. SOUTH WINDS AROUND
5 MPH.
THURSDAY
CLOUDY. HIGHS IN THE LOWER 50S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. NORTHWEST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. NORTH WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ013-212215-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
MAX TEMP (24HR TREND) 30 (-9) 41
MIN RH % (24HR TREND) 45 (-14) 46
MIN TEMP (24HR TREND) 23 (+5) 35
MAX RH % (24HR TREND) 73 (+9) 100
20FT WIND AM (MPH) LGT/VAR S 11
20FT WIND PM (MPH) SW 4-5 S 5-7 S 11 SW 8
PEAK WIND GUSTS (MPH) 23 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1400
MAX MIXING HGT (FT) 1300 1800
TRANSPORT WND (MPH) SW 8 S 21
VENT RATE (MPH-FT) 10400 39600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS, BECOMING NORTHEAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE MID 40S. SOUTHEAST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. LOWS IN THE LOWER 40S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
CLOUDY. HIGHS AROUND 50. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. NORTH WINDS
AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. NORTHWEST
WINDS 5 TO 10 MPH.
ILZ012-212215-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
MAX TEMP (24HR TREND) 29 (-10) 39
MIN RH % (24HR TREND) 49 (-12) 51
MIN TEMP (24HR TREND) 21 (+5) 34
MAX RH % (24HR TREND) 78 (+9) 100
20FT WIND AM (MPH) LGT/VAR S 11
20FT WIND PM (MPH) SW 4-5 S 6-8 S 11 SW 7
PEAK WIND GUSTS (MPH) 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1100 1500
MAX MIXING HGT (FT) 1300 1900
TRANSPORT WND (MPH) SW 6 S 24
VENT RATE (MPH-FT) 9100 45600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 40S. WEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 30. LIGHT WINDS,
BECOMING NORTHEAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE MID 40S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. LOWS AROUND 40. SOUTH WINDS AROUND 5 MPH, BECOMING NORTH
AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS AROUND 50. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 30. EAST WINDS AROUND
5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 20S. NORTHWEST WINDS 5 TO 10 MPH.
ILZ005-212215-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
MAX TEMP (24HR TREND) 27 (-12) 38
MIN RH % (24HR TREND) 53 (-2) 56
MIN TEMP (24HR TREND) 21 (+8) 32
MAX RH % (24HR TREND) 79 (+11) 100
20FT WIND AM (MPH) LGT/VAR S 11-12
20FT WIND PM (MPH) SW 4-6 S 6-8 S 11-12 SW 5-6
PEAK WIND GUSTS (MPH) 14 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1100 1500
MAX MIXING HGT (FT) 1300 1900
TRANSPORT WND (MPH) SW 8 S 21
VENT RATE (MPH-FT) 10400 41800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. LIGHT
WINDS.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE LOWER 40S. SOUTHEAST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
CLOUDY. RAIN SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. LOWS IN THE UPPER 30S. LIGHT WINDS.
THURSDAY
CLOUDY. HIGHS IN THE MID 40S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS AROUND 40. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS AROUND 40. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 20S. WEST WINDS 5 TO 10 MPH.
ILZ004-212215-
BOONE-
INCLUDING THE CITY OF BELVIDERE
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 27 (-11) 37
MIN RH % (24HR TREND) 54 (-6) 61
MIN TEMP (24HR TREND) 21 (+8) 32
MAX RH % (24HR TREND) 79 (+9) 100
20FT WIND AM (MPH) LGT/VAR S 10-12
20FT WIND PM (MPH) SW 3-5 S 6-8 S 10-12 S 5-6
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1000 1500
MAX MIXING HGT (FT) 1300 2000
TRANSPORT WND (MPH) SW 8 S 19
VENT RATE (MPH-FT) 10400 40000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. LIGHT
WINDS, BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE LOWER 40S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
CLOUDY. RAIN SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE UPPER 30S. LIGHT WINDS.
THURSDAY
CLOUDY. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS AROUND 40. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS AROUND 40. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 20S. NORTHWEST WINDS 5 TO
10 MPH.
ILZ011-212215-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
MAX TEMP (24HR TREND) 29 (-9) 39
MIN RH % (24HR TREND) 53 (-8) 55
MIN TEMP (24HR TREND) 21 (+5) 33
MAX RH % (24HR TREND) 81 (+6) 100
20FT WIND AM (MPH) LGT/VAR S 11-12
20FT WIND PM (MPH) SW 4-5 S 6-8 S 11-12 S 6-7
PEAK WIND GUSTS (MPH) 15 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1100 1500
MAX MIXING HGT (FT) 1300 2000
TRANSPORT WND (MPH) SW 8 S 20
VENT RATE (MPH-FT) 10400 42000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 40S. WEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. LIGHT
WINDS, BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE LOWER 40S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS AROUND 40. SOUTH WINDS AROUND 5 MPH,
BECOMING NORTH AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE LOWER 50S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 20S. NORTHWEST WINDS 5 TO 10 MPH.
ILZ003-212215-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 28 (-11) 38
MIN RH % (24HR TREND) 51 (+7) 60
MIN TEMP (24HR TREND) 22 (+8) 32
MAX RH % (24HR TREND) 80 (+10) 100
20FT WIND AM (MPH) LGT/VAR S 10-12
20FT WIND PM (MPH) SW 3-6 S 6-8 S 10-12 S 6-7
PEAK WIND GUSTS (MPH) 15 21
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1000 1600
MAX MIXING HGT (FT) 1300 2000
TRANSPORT WND (MPH) SW 9 S 20
VENT RATE (MPH-FT) 11700 42000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. LIGHT
WINDS, BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE LOWER 40S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE EVENING. NOT AS COOL. LOWS IN THE UPPER 30S. LIGHT WINDS,
BECOMING NORTHEAST AROUND 5 MPH AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE UPPER 40S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS AROUND 40. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS AROUND 40. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.
LOWS IN THE LOWER 20S. NORTHWEST WINDS 5 TO 10 MPH.
ILZ008-212215-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 29 (-10) 39
MIN RH % (24HR TREND) 51 (+5) 59
MIN TEMP (24HR TREND) 21 (+5) 33
MAX RH % (24HR TREND) 84 (+15) 100
20FT WIND AM (MPH) LGT/VAR S 10-12
20FT WIND PM (MPH) S 3-5 S 6-8 S 10-12 S 6-7
PEAK WIND GUSTS (MPH) 16 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1000 1600
MAX MIXING HGT (FT) 1300 1900
TRANSPORT WND (MPH) SW 9 S 20
VENT RATE (MPH-FT) 11700 39900
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 40S. WEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. LIGHT
WINDS, BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE LOWER 40S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
CLOUDY. A CHANCE OF SHOWERS AND DRIZZLE IN THE
EVENING. NOT AS COOL. LOWS IN THE UPPER 30S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE UPPER 40S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.
LOWS IN THE MID 20S. NORTHWEST WINDS 5 TO 10 MPH.
ILZ010-212215-
LEE-
INCLUDING THE CITY OF DIXON
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 32 (-7) 41
MIN RH % (24HR TREND) 49 (-7) 57
MIN TEMP (24HR TREND) 21 (+3) 33
MAX RH % (24HR TREND) 87 (+15) 100
20FT WIND AM (MPH) LGT/VAR S 10-12
20FT WIND PM (MPH) LGT/VAR S 6-8 S 10-12 S 6-7
PEAK WIND GUSTS (MPH) 15 21
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1000 1600
MAX MIXING HGT (FT) 1300 1900
TRANSPORT WND (MPH) SW 8 S 20
VENT RATE (MPH-FT) 10400 39900
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE MID 40S. NORTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 30. LIGHT WINDS,
BECOMING NORTHEAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE MID 40S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
CLOUDY. A CHANCE OF SHOWERS AND DRIZZLE IN THE
EVENING. NOT AS COOL. LOWS IN THE LOWER 40S. SOUTH WINDS AROUND
5 MPH, BECOMING NORTH AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE LOWER 50S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING.
LOWS IN THE MID 20S. NORTH WINDS AROUND 5 MPH, BECOMING NORTHWEST
AFTER MIDNIGHT.
ILZ019-212215-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 34 (-7) 42
MIN RH % (24HR TREND) 47 (-13) 49
MIN TEMP (24HR TREND) 23 (+2) 35
MAX RH % (24HR TREND) 81 (+9) 100
20FT WIND AM (MPH) LGT/VAR S 10
20FT WIND PM (MPH) LGT/VAR S 5-7 S 10 S 8
PEAK WIND GUSTS (MPH) 23 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1600
MAX MIXING HGT (FT) 1400 2000
TRANSPORT WND (MPH) SW 6 S 23
VENT RATE (MPH-FT) 9800 46000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS, BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLOUDY. A CHANCE OF SHOWERS AND DRIZZLE IN THE
EVENING. NOT AS COOL. LOWS IN THE MID 40S. SOUTH WINDS AROUND
5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE MID 50S. SOUTH WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS AROUND 10 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. COLDER. HIGHS IN THE MID 40S. NORTH
WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 20S. NORTH WINDS AROUND 5 MPH,
BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ020-212215-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10 10
MAX TEMP (24HR TREND) 31 (-9) 41
MIN RH % (24HR TREND) 49 (-15) 50
MIN TEMP (24HR TREND) 22 (+2) 35
MAX RH % (24HR TREND) 78 (+3) 100
20FT WIND AM (MPH) LGT/VAR S 10
20FT WIND PM (MPH) LGT/VAR S 5-6 S 10 S 6
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1600
MAX MIXING HGT (FT) 1400 2000
TRANSPORT WND (MPH) SW 5 S 23
VENT RATE (MPH-FT) 8400 46000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS, BECOMING NORTHEAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE IN THE
AFTERNOON. HIGHS IN THE MID 40S. SOUTHEAST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE LOWER 40S. SOUTH WINDS AROUND
5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE LOWER 50S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS AROUND 10 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. NORTHWEST
WINDS 5 TO 10 MPH.
ILZ021-212215-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 33 (-8) 42
MIN RH % (24HR TREND) 47 (-17) 50
MIN TEMP (24HR TREND) 24 (+2) 36
MAX RH % (24HR TREND) 80 (+1) 100
20FT WIND AM (MPH) LGT/VAR S 10-11
20FT WIND PM (MPH) LGT/VAR S 5-7 S 10-11 S 7
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1600
MAX MIXING HGT (FT) 1500 2100
TRANSPORT WND (MPH) SW 5 S 24
VENT RATE (MPH-FT) 9000 50400
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS, BECOMING NORTHEAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE UPPER 40S. SOUTH WINDS AROUND
5 MPH.
THURSDAY
CLOUDY. HIGHS IN THE MID 50S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 40. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. NORTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ022-212215-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 32 (-9) 42
MIN RH % (24HR TREND) 46 (-15) 47
MIN TEMP (24HR TREND) 23 (+2) 36
MAX RH % (24HR TREND) 78 (+6) 100
20FT WIND AM (MPH) LGT/VAR S 11
20FT WIND PM (MPH) SW 4-5 S 5-7 S 11 S 7-8
PEAK WIND GUSTS (MPH) 21 15
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1500
MAX MIXING HGT (FT) 1400 1900
TRANSPORT WND (MPH) SW 4 S 23
VENT RATE (MPH-FT) 7000 43700
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS, BECOMING NORTHEAST AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE MID 40S. SOUTH WINDS AROUND
5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
THURSDAY
CLOUDY. HIGHS IN THE LOWER 50S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 40. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING WEST AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ032-212215-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 35 (-8) 43
MIN RH % (24HR TREND) 47 (-11) 51
MIN TEMP (24HR TREND) 23 (0) 37
MAX RH % (24HR TREND) 85 (+11) 100
20FT WIND AM (MPH) LGT/VAR S 11-12
20FT WIND PM (MPH) LGT/VAR S 5-8 S 11-12 S 9
PEAK WIND GUSTS (MPH) 15 23 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1500
MAX MIXING HGT (FT) 1400 1900
TRANSPORT WND (MPH) SW 4 S 24
VENT RATE (MPH-FT) 7000 45600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT WINDS, BECOMING EAST
AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE LOWER 50S. SOUTHEAST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
CLOUDY. A CHANCE OF SHOWERS AND DRIZZLE IN THE
EVENING. WARMER. LOWS IN THE LOWER 50S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS AROUND 40.
SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. COOLER. HIGHS IN THE MID 40S. NORTH
WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. NORTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ023-212215-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 33 (-9) 42
MIN RH % (24HR TREND) 45 (-15) 46
MIN TEMP (24HR TREND) 23 (0) 36
MAX RH % (24HR TREND) 79 (+2) 100
20FT WIND AM (MPH) LGT/VAR S 10
20FT WIND PM (MPH) SW 3-5 LGT/VAR S 10 S 6
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1400
MAX MIXING HGT (FT) 1400 1800
TRANSPORT WND (MPH) NW 13 S 23
VENT RATE (MPH-FT) 19600 41400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE UPPER 40S. SOUTH WINDS AROUND
5 MPH.
THURSDAY
CLOUDY. HIGHS IN THE MID 50S. SOUTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. COOLER. HIGHS IN THE MID 40S. NORTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ039-212215-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 35 (-9) 43
MIN RH % (24HR TREND) 43 (-13) 49
MIN TEMP (24HR TREND) 22 (-1) 37
MAX RH % (24HR TREND) 85 (+9) 100
20FT WIND AM (MPH) LGT/VAR S 11-12
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 11-12 S 9
PEAK WIND GUSTS (MPH) 14 23 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1300
MAX MIXING HGT (FT) 1400 1800
TRANSPORT WND (MPH) W 3 S 23
VENT RATE (MPH-FT) 4200 41400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 50. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. NORTH
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE LOWER 50S. SOUTHEAST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
CLOUDY. A CHANCE OF SHOWERS AND DRIZZLE IN THE
EVENING. WARMER. LOWS IN THE LOWER 50S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS IN THE LOWER 40S.
SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY
PARTLY SUNNY. COOLER. HIGHS IN THE UPPER 40S. NORTH
WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING NORTHWEST AFTER MIDNIGHT.
ILZ033-212215-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 34 (-9) 43
MIN RH % (24HR TREND) 43 (-15) 44
MIN TEMP (24HR TREND) 23 (-1) 37
MAX RH % (24HR TREND) 78 (-2) 100
20FT WIND AM (MPH) LGT/VAR S 10-11
20FT WIND PM (MPH) SW 3-5 LGT/VAR S 10-11 S 6
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1300
MAX MIXING HGT (FT) 1500 1700
TRANSPORT WND (MPH) W 4 S 23
VENT RATE (MPH-FT) 7500 39100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING WEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT WINDS.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE LOWER 50S. SOUTHEAST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. WARMER. LOWS IN THE LOWER 50S. SOUTH WINDS AROUND 5 MPH.
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. COOLER. HIGHS IN THE UPPER 40S.
NORTHWEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ010-212215-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 33 (-8) 42
MIN RH % (24HR TREND) 44 (-17) 44
MIN TEMP (24HR TREND) 23 (-1) 37
MAX RH % (24HR TREND) 77 (-6) 100
20FT WIND AM (MPH) LGT/VAR S 10-11
20FT WIND PM (MPH) SW 3-5 LGT/VAR S 10-11 S 6-7
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1300
MAX MIXING HGT (FT) 1500 1700
TRANSPORT WND (MPH) W 5 S 21
VENT RATE (MPH-FT) 9000 37400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE UPPER 40S. SOUTH WINDS AROUND
5 MPH.
THURSDAY
CLOUDY. HIGHS IN THE MID 50S. SOUTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. COOLER. HIGHS IN THE MID 40S. NORTH
WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ011-212215-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
415 AM CST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 33 (-8) 42
MIN RH % (24HR TREND) 44 (-14) 44
MIN TEMP (24HR TREND) 22 (-2) 37
MAX RH % (24HR TREND) 76 (-6) 100
20FT WIND AM (MPH) LGT/VAR S 10-11
20FT WIND PM (MPH) SW 3-6 LGT/VAR S 10-11 S 8
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1400 1200
MAX MIXING HGT (FT) 1600 1800
TRANSPORT WND (MPH) NW 13 S 19
VENT RATE (MPH-FT) 22400 36000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT
WINDS.
WEDNESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND DRIZZLE
IN THE AFTERNOON. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
CLOUDY. SHOWERS AND DRIZZLE LIKELY IN THE
EVENING. NOT AS COOL. LOWS IN THE UPPER 40S. SOUTH WINDS AROUND
5 MPH.
THURSDAY
CLOUDY. HIGHS IN THE MID 50S. SOUTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. NORTHWEST WINDS
5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
NORTH WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ019-212215-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
515 AM EST SUN DEC 21 2025
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 34 (-10) 44
MIN RH % (24HR TREND) 45 (-11) 45
MIN TEMP (24HR TREND) 23 (-2) 38
MAX RH % (24HR TREND) 77 (-2) 98
20FT WIND AM (MPH) LGT/VAR S 9-11
20FT WIND PM (MPH) SW 2-5 LGT/VAR S 9-11 S 8
PEAK WIND GUSTS (MPH) 20 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1200
MAX MIXING HGT (FT) 1500 1700
TRANSPORT WND (MPH) W 5 S 25
VENT RATE (MPH-FT) 9000 42500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. LIGHT WINDS.
WEDNESDAY
MOSTLY CLOUDY. HIGHS AROUND 50. SOUTHEAST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
CLOUDY. A CHANCE OF SHOWERS AND DRIZZLE IN THE
EVENING. WARMER. LOWS AROUND 50. SOUTH WINDS AROUND 5 MPH.
THURSDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. SOUTHWEST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. COOLER. HIGHS IN THE UPPER 40S.
NORTHWEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
NORTH WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 40S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
YACK
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