052
FNUS53 KLOT 191044
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
544 AM CDT WED AUG 19 2026
DISCUSSION
WINDS SETTLE INTO A PREVAILING NORTHERLY DIRECTION TODAY WITH A
LAKE BREEZE THEN TURNING WINDS NORTHEAST TO EAST NEAR THE LAKE
THAT SURGES WELL INLAND THROUGH THE AFTERNOON.
A CORRIDOR OF SHOWERS AND THUNDERSTORMS MAY DEVELOP SOUTH OF A
PONTIAC TO RENSSELAER LINE THIS AFTERNOON AND EVENING AND MAY LEAD
TO LOCALIZED FLOODING. ADDITIONAL ISOLATED SHOWERS AND STORMS MAY
DEVELOP NEAR THE LAKE BREEZE BOUNDARY SOUTHWEST OF CHICAGO IN THE
AFTERNOON.
A DRIER AIRMASS MOVES IN ON THURSDAY AS SURFACE HIGH PRESSURE
SETTLES INTO THE AREA WITH AFTERNOON RELATIVE HUMIDITY VALUES
FORECAST TO DROP INTO THE 40-50 PERCENT RANGE AWAY FROM THE
LAKESHORE. SHOWER AND STORM CHANCES THEN RETURN FRIDAY INTO
SATURDAY.
ILZ014-192115-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 79 (-1) 81
MIN RH % (24HR TREND) 65 (+6) 41
MIN TEMP (24HR TREND) 62 (-4) 61
MAX RH % (24HR TREND) 82 (-16) 92
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 3-7 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 3800
MAX MIXING HGT (FT) 3500 5500
TRANSPORT WND (MPH) NE 6 NE 8
VENT RATE (MPH-FT) 24500 44000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTH WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. NORTH WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS AROUND
5 MPH, BECOMING NORTHEAST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
ILZ006-192115-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 78 (-1) 80
MIN RH % (24HR TREND) 64 (0) 44
MIN TEMP (24HR TREND) 58 (-5) 61
MAX RH % (24HR TREND) 88 (-12) 92
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 4-6 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 3400
MAX MIXING HGT (FT) 3500 5300
TRANSPORT WND (MPH) NE 8 E 5
VENT RATE (MPH-FT) 28000 31800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 60S. WEST WINDS AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
INZ001-192115-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 78 (-1) 78
MIN RH % (24HR TREND) 76 (+17) 50
MIN TEMP (24HR TREND) 59 (-7) 58
MAX RH % (24HR TREND) 91 (-7) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 2-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 3000
MAX MIXING HGT (FT) 3400 4100
TRANSPORT WND (MPH) N 5 NE 10
VENT RATE (MPH-FT) 20400 41000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ002-192115-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 77 (-2) 78
MIN RH % (24HR TREND) 77 (+19) 54
MIN TEMP (24HR TREND) 59 (-7) 58
MAX RH % (24HR TREND) 91 (-8) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 3-6 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2900
MAX MIXING HGT (FT) 3400 4200
TRANSPORT WND (MPH) N 5 NE 9
VENT RATE (MPH-FT) 20400 37800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
ILZ013-192115-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 79 (-1) 80
MIN RH % (24HR TREND) 63 (+2) 41
MIN TEMP (24HR TREND) 61 (-4) 60
MAX RH % (24HR TREND) 83 (-16) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 3-6 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 3800
MAX MIXING HGT (FT) 4200 6000
TRANSPORT WND (MPH) N 6 E 6
VENT RATE (MPH-FT) 29400 42000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
ILZ012-192115-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 79 (+1) 79
MIN RH % (24HR TREND) 63 (-4) 47
MIN TEMP (24HR TREND) 59 (-5) 60
MAX RH % (24HR TREND) 87 (-13) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 2-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1800 3100
MAX MIXING HGT (FT) 4100 5000
TRANSPORT WND (MPH) N 6 E 5
VENT RATE (MPH-FT) 28700 30000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ005-192115-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 79 (0) 79
MIN RH % (24HR TREND) 60 (-8) 46
MIN TEMP (24HR TREND) 57 (-5) 60
MAX RH % (24HR TREND) 89 (-11) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 3-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1800 3300
MAX MIXING HGT (FT) 4100 5100
TRANSPORT WND (MPH) N 6 SE 5
VENT RATE (MPH-FT) 28700 30600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ004-192115-
BOONE-
INCLUDING THE CITY OF BELVIDERE
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 79 (+1) 80
MIN RH % (24HR TREND) 58 (-13) 46
MIN TEMP (24HR TREND) 56 (-6) 59
MAX RH % (24HR TREND) 94 (-6) 96
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 3-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1600 3000
MAX MIXING HGT (FT) 4000 4900
TRANSPORT WND (MPH) N 6 SE 5
VENT RATE (MPH-FT) 28000 29400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 60. SOUTH WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
ILZ011-192115-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 80 (+3) 80
MIN RH % (24HR TREND) 61 (-9) 47
MIN TEMP (24HR TREND) 58 (-6) 60
MAX RH % (24HR TREND) 90 (-9) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 2-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1700 3000
MAX MIXING HGT (FT) 4100 4700
TRANSPORT WND (MPH) N 6 E 5
VENT RATE (MPH-FT) 28700 28200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ003-192115-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 79 (+1) 80
MIN RH % (24HR TREND) 57 (-11) 45
MIN TEMP (24HR TREND) 56 (-7) 60
MAX RH % (24HR TREND) 97 (-3) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 4-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1600 3100
MAX MIXING HGT (FT) 4100 5100
TRANSPORT WND (MPH) N 8 SE 5
VENT RATE (MPH-FT) 32800 30600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 60. SOUTHWEST WINDS AROUND 5 MPH, BECOMING
SOUTHEAST AFTER MIDNIGHT.
ILZ008-192115-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 80 (+2) 80
MIN RH % (24HR TREND) 58 (-14) 46
MIN TEMP (24HR TREND) 57 (-7) 60
MAX RH % (24HR TREND) 96 (-3) 98
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 3-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1500 3000
MAX MIXING HGT (FT) 4100 4900
TRANSPORT WND (MPH) N 8 E 5
VENT RATE (MPH-FT) 32800 29400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ010-192115-
LEE-
INCLUDING THE CITY OF DIXON
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 80 (+2) 80
MIN RH % (24HR TREND) 62 (-9) 47
MIN TEMP (24HR TREND) 59 (-7) 60
MAX RH % (24HR TREND) 95 (-3) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1700 2900
MAX MIXING HGT (FT) 4100 4500
TRANSPORT WND (MPH) N 6 E 5
VENT RATE (MPH-FT) 28700 27000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
ILZ019-192115-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 80 (0) 80
MIN RH % (24HR TREND) 66 (-1) 47
MIN TEMP (24HR TREND) 61 (-6) 61
MAX RH % (24HR TREND) 92 (-5) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 2400
MAX MIXING HGT (FT) 3800 4500
TRANSPORT WND (MPH) N 5 NE 6
VENT RATE (MPH-FT) 22800 31500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
ILZ020-192115-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 80 (+2) 80
MIN RH % (24HR TREND) 66 (-1) 47
MIN TEMP (24HR TREND) 60 (-6) 60
MAX RH % (24HR TREND) 88 (-12) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1800 2900
MAX MIXING HGT (FT) 4000 4800
TRANSPORT WND (MPH) N 5 NE 6
VENT RATE (MPH-FT) 24000 33600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
ILZ021-192115-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 81 (+2) 80
MIN RH % (24HR TREND) 69 (+4) 48
MIN TEMP (24HR TREND) 62 (-6) 60
MAX RH % (24HR TREND) 93 (-7) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 2700
MAX MIXING HGT (FT) 3700 4800
TRANSPORT WND (MPH) N 4 NE 8
VENT RATE (MPH-FT) 18500 38400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS AROUND 80. SOUTH WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
ILZ022-192115-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 79 (0) 79
MIN RH % (24HR TREND) 70 (+7) 46
MIN TEMP (24HR TREND) 61 (-6) 59
MAX RH % (24HR TREND) 90 (-10) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 2-5 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1900 3200
MAX MIXING HGT (FT) 3700 5000
TRANSPORT WND (MPH) NW 4 NE 8
VENT RATE (MPH-FT) 18500 40000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
ILZ032-192115-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 40 20
MAX TEMP (24HR TREND) 80 (0) 80
MIN RH % (24HR TREND) 72 (+8) 50
MIN TEMP (24HR TREND) 61 (-7) 60
MAX RH % (24HR TREND) 99 (+3) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2500 2300
MAX MIXING HGT (FT) 3600 4400
TRANSPORT WND (MPH) NW 4 NE 8
VENT RATE (MPH-FT) 18000 35200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS AROUND 80. LIGHT WINDS, BECOMING SOUTHWEST AROUND 5 MPH IN
THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
ILZ023-192115-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 79 (0) 79
MIN RH % (24HR TREND) 73 (+11) 49
MIN TEMP (24HR TREND) 60 (-7) 58
MAX RH % (24HR TREND) 95 (-3) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 2700
MAX MIXING HGT (FT) 3600 4400
TRANSPORT WND (MPH) NW 4 NE 8
VENT RATE (MPH-FT) 18000 35200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING SOUTHWEST AROUND
5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ039-192115-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 40
MAX TEMP (24HR TREND) 79 (-1) 79
MIN RH % (24HR TREND) 76 (+10) 53
MIN TEMP (24HR TREND) 61 (-7) 59
MAX RH % (24HR TREND) 100 (+4) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2500 2300
MAX MIXING HGT (FT) 3400 4000
TRANSPORT WND (MPH) W 4 NE 8
VENT RATE (MPH-FT) 17000 32000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTHEAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
ILZ033-192115-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30
MAX TEMP (24HR TREND) 79 (0) 79
MIN RH % (24HR TREND) 75 (+10) 51
MIN TEMP (24HR TREND) 60 (-8) 58
MAX RH % (24HR TREND) 100 (+4) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2400 2400
MAX MIXING HGT (FT) 3600 4400
TRANSPORT WND (MPH) W 4 NE 8
VENT RATE (MPH-FT) 18000 35200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ010-192115-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 30 20
MAX TEMP (24HR TREND) 77 (0) 78
MIN RH % (24HR TREND) 79 (+13) 55
MIN TEMP (24HR TREND) 59 (-7) 58
MAX RH % (24HR TREND) 99 (0) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2300 2600
MAX MIXING HGT (FT) 3800 4400
TRANSPORT WND (MPH) W 5 NE 8
VENT RATE (MPH-FT) 22800 35200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ011-192115-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
544 AM CDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 30 20
MAX TEMP (24HR TREND) 77 (-1) 78
MIN RH % (24HR TREND) 79 (+16) 55
MIN TEMP (24HR TREND) 59 (-7) 58
MAX RH % (24HR TREND) 98 (0) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2400 2500
MAX MIXING HGT (FT) 3700 4500
TRANSPORT WND (MPH) W 5 NE 8
VENT RATE (MPH-FT) 22200 36000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 60S. LIGHT WINDS, BECOMING SOUTHWEST
AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS, BECOMING NORTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ019-192115-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
644 AM EDT WED AUG 19 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40
MAX TEMP (24HR TREND) 77 (-1) 78
MIN RH % (24HR TREND) 79 (+16) 57
MIN TEMP (24HR TREND) 61 (-6) 59
MAX RH % (24HR TREND) 100 (+3) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2700 2400
MAX MIXING HGT (FT) 3500 4400
TRANSPORT WND (MPH) SW 5 NE 9
VENT RATE (MPH-FT) 21000 39600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
PETR
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