746
FNUS53 KLOT 291011
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
511 AM CDT TUE SEP 29 2026
DISCUSSION
ANY LINGERING FOG AFTER SUNRISE WILL GRADUALLY ERODE BY MID
MORNING.
LIGHT AND VARIABLE WINDS WILL SETTLE INTO A PREVAILING SOUTHERLY
DIRECTION LATER THIS MORNING, TURNING SOUTHEAST ALONG THE ILLINOIS
SHORE BEHIND A WEAK LAKE BREEZE IN THE AFTERNOON LEADING TO
INCREASING HUMIDITY AND LOWER MIXING HEIGHTS. MINIMUM RELATIVE
HUMIDITY VALUES FOR INLAND AREAS MAY DROP INTO THE 30 TO 40
PERCENT RANGE IN THE AFTERNOON, MAINLY SOUTH OF I-88.
SHOWERS THEN SPREAD INTO THE AREA, POTENTIALLY AS EARLY AS LATE
THIS EVENING, BUT MORE LIKELY DURING THE DAY ON WEDNESDAY.
PERIODIC SHOWERS WILL THEN CONTINUE THROUGH FRIDAY ACROSS THE
AREA, POTENTIALLY HEAVY AT TIMES. COOLER AND RAIN-FREE CONDITIONS
ARE THEN FORECAST FOR THE WEEKEND INTO EARLY NEXT WEEK WITH HIGH
TEMPERATURES IN THE 60S.
ILZ014-301000-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 70 50
MAX TEMP (24HR TREND) 76 (+4) 73
MIN RH % (24HR TREND) 42 (-10) 62
MIN TEMP (24HR TREND) 62 (+9) 65
MAX RH % (24HR TREND) 69 (-27) 84
20FT WIND AM (MPH) LGT/VAR SW 8-9
20FT WIND PM (MPH) S 3-6 S 6-7 S 8-9 S 6-8
PEAK WIND GUSTS (MPH) 17 15
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.05-0.10
11 AM MIXING HGT (FT) 1600 1000
MAX MIXING HGT (FT) 3900 1200
TRANSPORT WND (MPH) S 10 S 13
VENT RATE (MPH-FT) 39000 16800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS AROUND 60. NORTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. COOLER. HIGHS
IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. EAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ006-301000-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 80 70
MAX TEMP (24HR TREND) 74 (+2) 69
MIN RH % (24HR TREND) 49 (-2) 72
MIN TEMP (24HR TREND) 61 (+11) 63
MAX RH % (24HR TREND) 77 (-22) 94
20FT WIND AM (MPH) LGT/VAR SW 8-10
20FT WIND PM (MPH) S 3-7 S 6-7 S 8-10 SW 5-7
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.10-0.25
11 AM MIXING HGT (FT) 1500 1100
MAX MIXING HGT (FT) 3200 1300
TRANSPORT WND (MPH) S 10 S 16
VENT RATE (MPH-FT) 32000 20800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE MID 50S. NORTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE MORNING,
THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE LOWER 60S. NORTH
WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
INZ001-301000-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY CLOUDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 30
MAX TEMP (24HR TREND) 77 (+6) 75
MIN RH % (24HR TREND) 40 (-16) 54
MIN TEMP (24HR TREND) 60 (+11) 67
MAX RH % (24HR TREND) 74 (-26) 73
20FT WIND AM (MPH) LGT/VAR S 6
20FT WIND PM (MPH) S 3-5 S 5 S 6 S 7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 1900 900
MAX MIXING HGT (FT) 4000 1100
TRANSPORT WND (MPH) S 9 S 12
VENT RATE (MPH-FT) 36000 14300
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE UPPER 50S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. COOLER. HIGHS
IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
INZ002-301000-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY CLOUDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 30
MAX TEMP (24HR TREND) 76 (+4) 75
MIN RH % (24HR TREND) 43 (-9) 54
MIN TEMP (24HR TREND) 59 (+9) 66
MAX RH % (24HR TREND) 77 (-23) 74
20FT WIND AM (MPH) LGT/VAR S 6
20FT WIND PM (MPH) S 3-5 S 5 S 6 S 7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.01-0.05
11 AM MIXING HGT (FT) 2000 900
MAX MIXING HGT (FT) 4100 1200
TRANSPORT WND (MPH) S 9 S 12
VENT RATE (MPH-FT) 36900 15600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. COOLER. HIGHS
IN THE MID 60S. NORTH WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COOLER. LOWS IN THE UPPER 40S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
ILZ013-301000-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 70 60
MAX TEMP (24HR TREND) 76 (+2) 71
MIN RH % (24HR TREND) 44 (-6) 67
MIN TEMP (24HR TREND) 62 (+10) 65
MAX RH % (24HR TREND) 69 (-26) 85
20FT WIND AM (MPH) LGT/VAR SW 8-9
20FT WIND PM (MPH) S 3-6 S 6 S 8-9 S 6-7
PEAK WIND GUSTS (MPH) 17 14
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.10-0.25
11 AM MIXING HGT (FT) 1400 1000
MAX MIXING HGT (FT) 3600 1100
TRANSPORT WND (MPH) S 10 S 13
VENT RATE (MPH-FT) 36000 15400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. EAST WINDS
AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ012-301000-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 80 60
MAX TEMP (24HR TREND) 75 (+1) 71
MIN RH % (24HR TREND) 44 (+5) 71
MIN TEMP (24HR TREND) 61 (+11) 65
MAX RH % (24HR TREND) 70 (-26) 89
20FT WIND AM (MPH) LGT/VAR S 8-9
20FT WIND PM (MPH) S 4-6 S 6 S 8-9 S 5-7
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.10-0.25
11 AM MIXING HGT (FT) 1300 1000
MAX MIXING HGT (FT) 3000 1100
TRANSPORT WND (MPH) S 11 S 16
VENT RATE (MPH-FT) 36000 17600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE MID 50S. NORTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE MORNING,
THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE MID 60S.
NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
ILZ005-301000-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 80 70
MAX TEMP (24HR TREND) 74 (-1) 69
MIN RH % (24HR TREND) 50 (+12) 75
MIN TEMP (24HR TREND) 61 (+12) 63
MAX RH % (24HR TREND) 73 (-24) 95
20FT WIND AM (MPH) LGT/VAR SW 8-9
20FT WIND PM (MPH) S 3-7 S 6 S 8-9 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.25-0.50
11 AM MIXING HGT (FT) 1300 1100
MAX MIXING HGT (FT) 2700 1200
TRANSPORT WND (MPH) S 12 S 17
VENT RATE (MPH-FT) 35100 20400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS AROUND 70. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
CLOUDY. SHOWERS LIKELY, MAINLY IN THE EVENING.
LOWS IN THE MID 50S. NORTH WINDS AROUND 5 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE MORNING,
THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE MID 60S. NORTH
WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
ILZ004-301000-
BOONE-
INCLUDING THE CITY OF BELVIDERE
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 90 80
MAX TEMP (24HR TREND) 74 (-2) 69
MIN RH % (24HR TREND) 49 (+16) 78
MIN TEMP (24HR TREND) 61 (+11) 63
MAX RH % (24HR TREND) 73 (-24) 97
20FT WIND AM (MPH) LGT/VAR S 8-9
20FT WIND PM (MPH) S 3-7 S 6 S 8-9 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.25-0.50 0.25-0.50
11 AM MIXING HGT (FT) 1400 1100
MAX MIXING HGT (FT) 2700 1200
TRANSPORT WND (MPH) S 12 S 17
VENT RATE (MPH-FT) 35100 20400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS AROUND 70. SOUTHWEST WINDS AROUND
5 MPH, BECOMING WEST IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. SHOWERS LIKELY, MAINLY IN THE EVENING.
LOWS IN THE LOWER 50S. NORTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
ILZ011-301000-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 80 60
MAX TEMP (24HR TREND) 75 (0) 71
MIN RH % (24HR TREND) 42 (+10) 70
MIN TEMP (24HR TREND) 61 (+12) 64
MAX RH % (24HR TREND) 71 (-26) 91
20FT WIND AM (MPH) LGT/VAR S 8-10
20FT WIND PM (MPH) S 4-7 S 6-7 S 8-10 S 5-7
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.10-0.25
11 AM MIXING HGT (FT) 1300 900
MAX MIXING HGT (FT) 3000 1100
TRANSPORT WND (MPH) S 11 S 17
VENT RATE (MPH-FT) 36000 18700
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE MID 50S. NORTH WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE MORNING,
THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE MID 60S.
NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ003-301000-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 90 80
MAX TEMP (24HR TREND) 74 (-2) 69
MIN RH % (24HR TREND) 48 (+9) 81
MIN TEMP (24HR TREND) 61 (+11) 63
MAX RH % (24HR TREND) 76 (-20) 100
20FT WIND AM (MPH) LGT/VAR S 9-10
20FT WIND PM (MPH) S 4-7 S 7 S 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.25-0.50 0.25-0.50
11 AM MIXING HGT (FT) 1500 1200
MAX MIXING HGT (FT) 2800 1300
TRANSPORT WND (MPH) S 12 S 17
VENT RATE (MPH-FT) 36400 22100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE UPPER 60S. WEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
CLOUDY. SHOWERS LIKELY, MAINLY IN THE EVENING.
LOWS IN THE LOWER 50S. NORTH WINDS 5 TO 10 MPH.
FRIDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
ILZ008-301000-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 60 80 70
MAX TEMP (24HR TREND) 75 (-1) 70
MIN RH % (24HR TREND) 45 (+10) 78
MIN TEMP (24HR TREND) 62 (+13) 64
MAX RH % (24HR TREND) 76 (-20) 98
20FT WIND AM (MPH) LGT/VAR S 8-9
20FT WIND PM (MPH) S 4-7 S 7 S 8-9 LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.50-0.75 0.25-0.50
11 AM MIXING HGT (FT) 1500 1100
MAX MIXING HGT (FT) 2800 1100
TRANSPORT WND (MPH) S 12 S 17
VENT RATE (MPH-FT) 36400 18700
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
SHOWERS. LOWS IN THE MID 50S. NORTH WINDS 5 TO
10 MPH.
FRIDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
ILZ010-301000-
LEE-
INCLUDING THE CITY OF DIXON
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 50 80 60
MAX TEMP (24HR TREND) 76 (-1) 72
MIN RH % (24HR TREND) 42 (+13) 72
MIN TEMP (24HR TREND) 62 (+12) 64
MAX RH % (24HR TREND) 72 (-23) 94
20FT WIND AM (MPH) LGT/VAR S 8
20FT WIND PM (MPH) S 4-6 S 6-7 S 8 LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.50-0.75 0.25-0.50
11 AM MIXING HGT (FT) 1500 1000
MAX MIXING HGT (FT) 3200 1100
TRANSPORT WND (MPH) S 11 S 17
VENT RATE (MPH-FT) 38400 18700
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE MID 50S. NORTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE MORNING,
THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE MID 60S.
NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
ILZ019-301000-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 60 40
MAX TEMP (24HR TREND) 78 (0) 76
MIN RH % (24HR TREND) 35 (+9) 59
MIN TEMP (24HR TREND) 63 (+13) 67
MAX RH % (24HR TREND) 64 (-29) 81
20FT WIND AM (MPH) LGT/VAR S 6
20FT WIND PM (MPH) S 3-6 S 5 S 6 S 5
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.05-0.10
11 AM MIXING HGT (FT) 1900 900
MAX MIXING HGT (FT) 4100 1100
TRANSPORT WND (MPH) S 10 S 12
VENT RATE (MPH-FT) 41000 14300
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE UPPER 50S. NORTH WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
ILZ020-301000-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY CLOUDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 70 50
MAX TEMP (24HR TREND) 77 (+1) 74
MIN RH % (24HR TREND) 38 (0) 62
MIN TEMP (24HR TREND) 62 (+12) 66
MAX RH % (24HR TREND) 68 (-31) 83
20FT WIND AM (MPH) LGT/VAR S 7-8
20FT WIND PM (MPH) S 3-6 S 5-6 S 7-8 S 6
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.05-0.10
11 AM MIXING HGT (FT) 1300 800
MAX MIXING HGT (FT) 3800 1100
TRANSPORT WND (MPH) S 11 S 13
VENT RATE (MPH-FT) 45600 15400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS. HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 10 MPH.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ021-301000-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR MCLDY MCLDY CLOUDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 30
MAX TEMP (24HR TREND) 79 (+1) 77
MIN RH % (24HR TREND) 35 (+3) 57
MIN TEMP (24HR TREND) 63 (+12) 67
MAX RH % (24HR TREND) 66 (-30) 76
20FT WIND AM (MPH) LGT/VAR S 6
20FT WIND PM (MPH) S 3-6 S 5 S 6 S 5
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.25-0.50 0.01-0.05
11 AM MIXING HGT (FT) 1800 800
MAX MIXING HGT (FT) 4000 1100
TRANSPORT WND (MPH) S 10 S 12
VENT RATE (MPH-FT) 40000 14300
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS AROUND 60. NORTHWEST WINDS AROUND
5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. COOLER. HIGHS
IN THE UPPER 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
ILZ022-301000-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR MCLDY MCLDY CLOUDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 20 50 30
MAX TEMP (24HR TREND) 77 (+1) 76
MIN RH % (24HR TREND) 37 (-5) 56
MIN TEMP (24HR TREND) 61 (+11) 66
MAX RH % (24HR TREND) 69 (-30) 78
20FT WIND AM (MPH) LGT/VAR S 7
20FT WIND PM (MPH) S 3-6 S 5-6 S 7 S 6-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 1700 900
MAX MIXING HGT (FT) 4000 1100
TRANSPORT WND (MPH) S 10 S 12
VENT RATE (MPH-FT) 40000 14300
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS AROUND 60. NORTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. COOLER. HIGHS
IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
ILZ032-301000-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR MCLDY MCLDY MCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 20
MAX TEMP (24HR TREND) 80 (+2) 79
MIN RH % (24HR TREND) 34 (+4) 49
MIN TEMP (24HR TREND) 62 (+11) 68
MAX RH % (24HR TREND) 67 (-30) 71
20FT WIND AM (MPH) LGT/VAR S 6
20FT WIND PM (MPH) S 3-5 S 5 S 6 S 6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 2200 800
MAX MIXING HGT (FT) 4200 1100
TRANSPORT WND (MPH) S 10 S 11
VENT RATE (MPH-FT) 42000 13200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS AROUND 80. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE MORNING.
COOLER. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COOLER. LOWS IN THE LOWER 50S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
ILZ023-301000-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY CLOUDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 20
MAX TEMP (24HR TREND) 79 (+2) 77
MIN RH % (24HR TREND) 34 (-4) 51
MIN TEMP (24HR TREND) 61 (+12) 67
MAX RH % (24HR TREND) 70 (-29) 70
20FT WIND AM (MPH) LGT/VAR S 5
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5 S 5-6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.00
11 AM MIXING HGT (FT) 2000 900
MAX MIXING HGT (FT) 4100 1100
TRANSPORT WND (MPH) S 9 S 13
VENT RATE (MPH-FT) 36900 15400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY IN THE AFTERNOON. HIGHS AROUND 80. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS AROUND 60. NORTHWEST WINDS AROUND
5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE MORNING.
COOLER. HIGHS IN THE MID 60S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COOLER. LOWS AROUND 50. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. LIGHT WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
ILZ039-301000-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS NONE
CHANCE PRECIP (%) 10 20 10
MAX TEMP (24HR TREND) 80 (+3) 81
MIN RH % (24HR TREND) 33 (+3) 41
MIN TEMP (24HR TREND) 61 (+10) 68
MAX RH % (24HR TREND) 67 (-26) 65
20FT WIND AM (MPH) LGT/VAR S 6
20FT WIND PM (MPH) S 3-5 S 5 S 6 S 6-8
PEAK WIND GUSTS (MPH) 16
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.00
11 AM MIXING HGT (FT) 2300 900
MAX MIXING HGT (FT) 4200 1300
TRANSPORT WND (MPH) S 8 S 12
VENT RATE (MPH-FT) 33600 16900
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE MORNING.
COOLER. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. COOLER. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ033-301000-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS NONE
CHANCE PRECIP (%) 10 20 10
MAX TEMP (24HR TREND) 79 (+2) 80
MIN RH % (24HR TREND) 33 (-1) 41
MIN TEMP (24HR TREND) 60 (+11) 68
MAX RH % (24HR TREND) 71 (-26) 64
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 4-5 S 5-6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.00
11 AM MIXING HGT (FT) 2400 900
MAX MIXING HGT (FT) 4100 1400
TRANSPORT WND (MPH) S 8 S 12
VENT RATE (MPH-FT) 32800 18200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE MORNING.
COOLER. HIGHS IN THE UPPER 60S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COOLER. LOWS AROUND 50. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. LIGHT WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
INZ010-301000-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS NONE
CHANCE PRECIP (%) 10 20 10
MAX TEMP (24HR TREND) 78 (+1) 79
MIN RH % (24HR TREND) 36 (-4) 43
MIN TEMP (24HR TREND) 60 (+15) 67
MAX RH % (24HR TREND) 73 (-27) 65
20FT WIND AM (MPH) LGT/VAR S 5
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5 S 6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.00
11 AM MIXING HGT (FT) 2400 900
MAX MIXING HGT (FT) 4200 1300
TRANSPORT WND (MPH) S 8 S 13
VENT RATE (MPH-FT) 33600 18200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS AROUND 60. WEST WINDS AROUND
5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE MORNING.
COOLER. HIGHS IN THE UPPER 60S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COOLER. LOWS IN THE UPPER 40S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. LIGHT WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
INZ011-301000-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
511 AM CDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 10
MAX TEMP (24HR TREND) 78 (+2) 78
MIN RH % (24HR TREND) 37 (-4) 45
MIN TEMP (24HR TREND) 59 (+13) 67
MAX RH % (24HR TREND) 77 (-23) 64
20FT WIND AM (MPH) LGT/VAR S 5
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5 S 6-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.00
11 AM MIXING HGT (FT) 2300 1000
MAX MIXING HGT (FT) 4300 1300
TRANSPORT WND (MPH) S 8 S 12
VENT RATE (MPH-FT) 34400 16900
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE MORNING.
COOLER. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. COOLER. LOWS IN THE UPPER 40S. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
INZ019-301000-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
611 AM EDT TUE SEP 29 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 78 (+2) 80
MIN RH % (24HR TREND) 37 (-3) 42
MIN TEMP (24HR TREND) 59 (+10) 68
MAX RH % (24HR TREND) 78 (-22) 61
20FT WIND AM (MPH) LGT/VAR S 5
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5 S 6-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 900
MAX MIXING HGT (FT) 4000 1300
TRANSPORT WND (MPH) S 8 S 11
VENT RATE (MPH-FT) 32000 15600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
SHOWERS. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH, BECOMING NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE MORNING.
COOLER. HIGHS IN THE UPPER 60S. NORTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. COOLER. LOWS IN THE
LOWER 50S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. LIGHT WINDS.
MONDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. LIGHT WINDS.
PETR
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page