388
FNUS53 KLOT 230848
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
348 AM CDT SUN AUG 23 2026
DISCUSSION
HIGH PRESSURE WILL BUILD INTO THE AREA TODAY AND PERSIST THROUGH
TUESDAY RESULTING IN DRY CONDITIONS. THOUGH, BREEZY NORTH-
NORTHWEST WINDS ARE EXPECTED THIS AFTERNOON WITH GUSTS AROUND 20
MPH. LIGHTER NORTHWEST WINDS ARE FORECAST FOR MONDAY BEFORE WINDS
BECOME MORE SOUTHERLY ON TUESDAY. OTHERWISE, EXPECT SEASONABLY
COOL TEMPERATURES THROUGH TUESDAY WITH DAILY HIGHS IN THE MID TO
UPPER 70S TO AROUND 80, MINIMUM RH VALUES AROUND 40-50%, AND
MIXING HEIGHTS PEAKING AROUND 5000-6000 FT.
OUR NEXT CHANCE FOR RAIN IS NOT EXPECTED UNTIL LATE TUESDAY NIGHT
AND WEDNESDAY WHEN ANOTHER COLD FRONT MOVES THROUGH THE REGION.
WHILE CONFIDENCE CONTINUES TO INCREASE ON SHOWERS/STORMS DURING
THIS TIMEFRAME, UNCERTAINTY REMAINS IN STORM COVERAGE AND EXACT
TIMING.
ILZ014-232130-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 76 (-3) 78
MIN RH % (24HR TREND) 40 (-20) 44
MIN TEMP (24HR TREND) 56 (-5) 57
MAX RH % (24HR TREND) 91 (+2) 92
20FT WIND AM (MPH) NW 7-9 LGT/VAR
20FT WIND PM (MPH) NW 7-9 LGT/VAR N 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 5200 3700
MAX MIXING HGT (FT) 7000 5500
TRANSPORT WND (MPH) NW 13 NW 10
VENT RATE (MPH-FT) 98000 55000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 60S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. WEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE MID
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ006-232130-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 74 (-4) 76
MIN RH % (24HR TREND) 43 (-20) 46
MIN TEMP (24HR TREND) 52 (-6) 54
MAX RH % (24HR TREND) 94 (+2) 97
20FT WIND AM (MPH) NW 8-9 LGT/VAR
20FT WIND PM (MPH) NW 8-9 LGT/VAR N 4-5 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 5000 3500
MAX MIXING HGT (FT) 6500 4900
TRANSPORT WND (MPH) NW 14 NW 11
VENT RATE (MPH-FT) 97500 58800
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
INZ001-232130-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 74 (-3) 75
MIN RH % (24HR TREND) 49 (-17) 51
MIN TEMP (24HR TREND) 53 (-6) 53
MAX RH % (24HR TREND) 97 (+2) 98
20FT WIND AM (MPH) NW 6-8 LGT/VAR
20FT WIND PM (MPH) N 6-8 LGT/VAR N 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 5100 3800
MAX MIXING HGT (FT) 6400 5200
TRANSPORT WND (MPH) N 12 NW 11
VENT RATE (MPH-FT) 83200 62400
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
INZ002-232130-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 73 (-3) 76
MIN RH % (24HR TREND) 52 (-16) 52
MIN TEMP (24HR TREND) 54 (-6) 52
MAX RH % (24HR TREND) 96 (+3) 96
20FT WIND AM (MPH) NW 7-8 LGT/VAR
20FT WIND PM (MPH) N 7-8 LGT/VAR N 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 23
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4900 3900
MAX MIXING HGT (FT) 5500 4800
TRANSPORT WND (MPH) NW 14 NW 11
VENT RATE (MPH-FT) 82500 57600
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 60. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTH WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ013-232130-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-4) 77
MIN RH % (24HR TREND) 41 (-20) 44
MIN TEMP (24HR TREND) 54 (-5) 56
MAX RH % (24HR TREND) 93 (+4) 95
20FT WIND AM (MPH) N 7-9 LGT/VAR
20FT WIND PM (MPH) NW 7-9 LGT/VAR NW 3-6 LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 5100 3700
MAX MIXING HGT (FT) 6600 5200
TRANSPORT WND (MPH) NW 13 NW 11
VENT RATE (MPH-FT) 92400 62400
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 60S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ012-232130-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 74 (-4) 77
MIN RH % (24HR TREND) 45 (-19) 49
MIN TEMP (24HR TREND) 53 (-4) 55
MAX RH % (24HR TREND) 94 (+3) 96
20FT WIND AM (MPH) N 7-8 LGT/VAR
20FT WIND PM (MPH) NW 7-8 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4400 3200
MAX MIXING HGT (FT) 6000 4600
TRANSPORT WND (MPH) NW 13 NW 10
VENT RATE (MPH-FT) 84000 46000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. NORTH WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ005-232130-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 74 (-3) 76
MIN RH % (24HR TREND) 45 (-19) 47
MIN TEMP (24HR TREND) 51 (-5) 53
MAX RH % (24HR TREND) 93 (-2) 97
20FT WIND AM (MPH) NW 7-9 LGT/VAR
20FT WIND PM (MPH) NW 7-9 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4600 3300
MAX MIXING HGT (FT) 6200 4700
TRANSPORT WND (MPH) NW 14 NW 10
VENT RATE (MPH-FT) 93000 47000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
ILZ004-232130-
BOONE-
INCLUDING THE CITY OF BELVIDERE
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-3) 76
MIN RH % (24HR TREND) 44 (-17) 47
MIN TEMP (24HR TREND) 51 (-4) 54
MAX RH % (24HR TREND) 96 (+2) 95
20FT WIND AM (MPH) N 6-8 LGT/VAR
20FT WIND PM (MPH) NW 6-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4300 2900
MAX MIXING HGT (FT) 6200 4500
TRANSPORT WND (MPH) NW 13 NW 9
VENT RATE (MPH-FT) 86800 40500
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ011-232130-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 74 (-4) 77
MIN RH % (24HR TREND) 45 (-15) 48
MIN TEMP (24HR TREND) 53 (-3) 55
MAX RH % (24HR TREND) 94 (+3) 95
20FT WIND AM (MPH) N 6-8 LGT/VAR
20FT WIND PM (MPH) NW 6-8 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3900 3200
MAX MIXING HGT (FT) 6000 4400
TRANSPORT WND (MPH) NW 13 NW 9
VENT RATE (MPH-FT) 84000 39600
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
FRIDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ003-232130-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 76 (-2) 77
MIN RH % (24HR TREND) 40 (-17) 46
MIN TEMP (24HR TREND) 51 (-5) 54
MAX RH % (24HR TREND) 96 (+5) 96
20FT WIND AM (MPH) N 6-9 LGT/VAR
20FT WIND PM (MPH) NW 6-9 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4400 3200
MAX MIXING HGT (FT) 6400 4500
TRANSPORT WND (MPH) NW 13 NW 9
VENT RATE (MPH-FT) 89600 40500
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS AROUND 60.
SOUTHEAST WINDS AROUND 5 MPH.
ILZ008-232130-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-4) 77
MIN RH % (24HR TREND) 41 (-17) 47
MIN TEMP (24HR TREND) 52 (-3) 54
MAX RH % (24HR TREND) 95 (+7) 98
20FT WIND AM (MPH) N 6-8 LGT/VAR
20FT WIND PM (MPH) NW 6-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4200 3200
MAX MIXING HGT (FT) 6100 4400
TRANSPORT WND (MPH) NW 12 NW 8
VENT RATE (MPH-FT) 79300 35200
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTHWEST
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ010-232130-
LEE-
INCLUDING THE CITY OF DIXON
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-4) 77
MIN RH % (24HR TREND) 44 (-15) 48
MIN TEMP (24HR TREND) 53 (-2) 55
MAX RH % (24HR TREND) 94 (+5) 99
20FT WIND AM (MPH) N 6-7 LGT/VAR
20FT WIND PM (MPH) NW 6-7 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 13
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3300 2700
MAX MIXING HGT (FT) 6000 4300
TRANSPORT WND (MPH) NW 12 NW 8
VENT RATE (MPH-FT) 78000 34400
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS,
BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ019-232130-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 76 (-3) 78
MIN RH % (24HR TREND) 47 (-15) 48
MIN TEMP (24HR TREND) 54 (-3) 57
MAX RH % (24HR TREND) 96 (+4) 93
20FT WIND AM (MPH) N 6-7 LGT/VAR
20FT WIND PM (MPH) NW 6-7 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) 3300 3000
MAX MIXING HGT (FT) 5800 4500
TRANSPORT WND (MPH) NW 12 NW 9
VENT RATE (MPH-FT) 75400 40500
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 60S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE MID
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ020-232130-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-4) 78
MIN RH % (24HR TREND) 47 (-16) 49
MIN TEMP (24HR TREND) 54 (-3) 55
MAX RH % (24HR TREND) 97 (+5) 95
20FT WIND AM (MPH) N 6-8 LGT/VAR
20FT WIND PM (MPH) NW 6-8 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3700 3100
MAX MIXING HGT (FT) 5800 4600
TRANSPORT WND (MPH) NW 13 NW 11
VENT RATE (MPH-FT) 81200 55200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. WEST WINDS
AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. EAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ021-232130-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-4) 78
MIN RH % (24HR TREND) 48 (-18) 49
MIN TEMP (24HR TREND) 54 (-4) 57
MAX RH % (24HR TREND) 99 (+6) 93
20FT WIND AM (MPH) NW 5-8 LGT/VAR
20FT WIND PM (MPH) NW 5-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3500 3200
MAX MIXING HGT (FT) 5900 4700
TRANSPORT WND (MPH) NW 13 NW 9
VENT RATE (MPH-FT) 82600 42300
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 60S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE MID
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ022-232130-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-3) 77
MIN RH % (24HR TREND) 46 (-21) 49
MIN TEMP (24HR TREND) 53 (-6) 55
MAX RH % (24HR TREND) 99 (+5) 96
20FT WIND AM (MPH) NW 6-9 LGT/VAR
20FT WIND PM (MPH) NW 6-9 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4800 3400
MAX MIXING HGT (FT) 6000 4700
TRANSPORT WND (MPH) NW 12 NW 11
VENT RATE (MPH-FT) 78000 56400
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ032-232130-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR CLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 76 (-4) 79
MIN RH % (24HR TREND) 48 (-18) 48
MIN TEMP (24HR TREND) 54 (-3) 57
MAX RH % (24HR TREND) 97 (0) 95
20FT WIND AM (MPH) NW 5-8 LGT/VAR
20FT WIND PM (MPH) NW 5-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 13
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3200 3200
MAX MIXING HGT (FT) 5900 4600
TRANSPORT WND (MPH) NW 12 NW 6
VENT RATE (MPH-FT) 76700 32200
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE MID 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE MID
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ023-232130-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-3) 77
MIN RH % (24HR TREND) 47 (-20) 49
MIN TEMP (24HR TREND) 53 (-5) 53
MAX RH % (24HR TREND) 98 (+2) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NW 4-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4300 3400
MAX MIXING HGT (FT) 6000 4700
TRANSPORT WND (MPH) NW 12 NW 10
VENT RATE (MPH-FT) 78000 47000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTHWEST
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ039-232130-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER CLEAR CLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 76 (-3) 78
MIN RH % (24HR TREND) 48 (-18) 49
MIN TEMP (24HR TREND) 55 (-3) 56
MAX RH % (24HR TREND) 96 (0) 95
20FT WIND AM (MPH) NW 5-8 LGT/VAR
20FT WIND PM (MPH) NW 5-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3300 3600
MAX MIXING HGT (FT) 5900 4600
TRANSPORT WND (MPH) NW 12 NW 8
VENT RATE (MPH-FT) 76700 36800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ033-232130-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 76 (-2) 78
MIN RH % (24HR TREND) 46 (-19) 49
MIN TEMP (24HR TREND) 53 (-4) 55
MAX RH % (24HR TREND) 98 (+2) 95
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NW 4-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3800 3500
MAX MIXING HGT (FT) 6100 4800
TRANSPORT WND (MPH) NW 11 NW 8
VENT RATE (MPH-FT) 73200 38400
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
60S. LIGHT WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
INZ010-232130-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-2) 76
MIN RH % (24HR TREND) 45 (-21) 50
MIN TEMP (24HR TREND) 53 (-2) 53
MAX RH % (24HR TREND) 97 (-1) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NW 4-7 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4500 3700
MAX MIXING HGT (FT) 6300 5000
TRANSPORT WND (MPH) NW 12 NW 11
VENT RATE (MPH-FT) 81900 60000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS, BECOMING SOUTH AROUND
5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. LIGHT WINDS, BECOMING SOUTHEAST
AROUND 5 MPH AFTER MIDNIGHT.
INZ011-232130-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
348 AM CDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 75 (-2) 76
MIN RH % (24HR TREND) 47 (-19) 50
MIN TEMP (24HR TREND) 53 (-3) 52
MAX RH % (24HR TREND) 97 (-2) 97
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NW 4-7 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4700 3800
MAX MIXING HGT (FT) 6100 5000
TRANSPORT WND (MPH) NW 13 NW 11
VENT RATE (MPH-FT) 85400 60000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST WINDS AROUND
5 MPH.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
INZ019-232130-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
448 AM EDT SUN AUG 23 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLEAR CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 76 (-1) 76
MIN RH % (24HR TREND) 47 (-19) 51
MIN TEMP (24HR TREND) 54 (-3) 55
MAX RH % (24HR TREND) 96 (0) 93
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NW 4-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 4200 3900
MAX MIXING HGT (FT) 6200 4900
TRANSPORT WND (MPH) NW 11 NW 9
VENT RATE (MPH-FT) 74400 44100
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS, BECOMING SOUTHEAST
AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
YACK
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