436
FNUS53 KLOT 261008
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
508 AM CDT WED AUG 26 2026
DISCUSSION
A COLD FRONT WILL MOVE ACROSS THE AREA TODAY BRINGING THE
POTENTIAL FOR SHOWERS AND THUNDERSTORMS, INCLUDING THIS MORNING
NEAR AND NORTH OF I-88. THE GREATEST COVERAGE IS EXPECTED LATER
THIS AFTERNOON INTO EARLY EVENING EAST OF INTERSTATE-55. LIGHT
SOUTHWEST WINDS THIS MORNING WILL GRADUALLY TURN WEST AND THEN
NORTHWEST THIS AFTERNOON INTO THE EVENING BEHIND THE FRONT.
NORTH WINDS ARE EXPECTED ON THURSDAY WITH A LAKE BREEZE TURNING
WINDS NORTHEAST NEAR THE LAKE. WHILE MOST AREAS ARE EXPECTED TO
REMAIN RAIN-FREE, A STRAY SHOWER CAN'T BE RULED OUT IN THE
AFTERNOON NEAR THE LAKE BREEZE.
A BREAK IN THE SHOWER AND STORM POTENTIAL IS IN STORE HEADING INTO
THE WEEKEND WITH A RETURN TO A MORE ACTIVE WEATHER PATTERN THEN
SETTING UP EARLY NEXT WEEK WITH PERIODIC SHOWER AND STORM CHANCES.
ILZ014-262130-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE SHOWERS NONE
CHANCE PRECIP (%) 30 10 20
MAX TEMP (24HR TREND) 84 (+4) 81
MIN RH % (24HR TREND) 51 (+8) 50
MIN TEMP (24HR TREND) 64 (-2) 61
MAX RH % (24HR TREND) 91 (+7) 95
20FT WIND AM (MPH) SW 10-11 NW 5-6
20FT WIND PM (MPH) W 10-11 LGT/VAR N 5-6 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 4200
MAX MIXING HGT (FT) 5700 5800
TRANSPORT WND (MPH) W 17 N 9
VENT RATE (MPH-FT) 96900 52200
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 10 TO
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
ILZ006-262130-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10
MAX TEMP (24HR TREND) 83 (+4) 79
MIN RH % (24HR TREND) 53 (+4) 52
MIN TEMP (24HR TREND) 61 (-3) 57
MAX RH % (24HR TREND) 97 (+4) 100
20FT WIND AM (MPH) SW 10-11 NW 5-6
20FT WIND PM (MPH) W 10-11 LGT/VAR N 5-6 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 3700
MAX MIXING HGT (FT) 5200 5400
TRANSPORT WND (MPH) W 17 N 10
VENT RATE (MPH-FT) 88400 54000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. SOUTHEAST WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
5 TO 10 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
INZ001-262130-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE SHOWERS NONE
CHANCE PRECIP (%) 40 10 20
MAX TEMP (24HR TREND) 83 (+4) 80
MIN RH % (24HR TREND) 57 (+11) 55
MIN TEMP (24HR TREND) 62 (0) 57
MAX RH % (24HR TREND) 96 (+7) 100
20FT WIND AM (MPH) SW 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR N 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 3700
MAX MIXING HGT (FT) 4700 4700
TRANSPORT WND (MPH) W 17 N 10
VENT RATE (MPH-FT) 79900 47000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
5 TO 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS AROUND
70. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
INZ002-262130-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR CLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50 20 10
MAX TEMP (24HR TREND) 82 (+4) 79
MIN RH % (24HR TREND) 61 (+15) 59
MIN TEMP (24HR TREND) 63 (+2) 58
MAX RH % (24HR TREND) 98 (+8) 100
20FT WIND AM (MPH) SW 9-10 NW 5-7
20FT WIND PM (MPH) W 9-10 LGT/VAR N 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 3300
MAX MIXING HGT (FT) 4200 4000
TRANSPORT WND (MPH) SW 17 N 11
VENT RATE (MPH-FT) 71400 48000
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS AROUND
70. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
ILZ013-262130-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR PCLDY MCLEAR
PRECIP TYPE TSTMS NONE SHOWERS NONE
CHANCE PRECIP (%) 30 10 20
MAX TEMP (24HR TREND) 83 (+2) 81
MIN RH % (24HR TREND) 51 (+7) 49
MIN TEMP (24HR TREND) 62 (-3) 59
MAX RH % (24HR TREND) 92 (+6) 96
20FT WIND AM (MPH) SW 10-11 NW 5-6
20FT WIND PM (MPH) W 10-11 LGT/VAR N 5-6 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 4100
MAX MIXING HGT (FT) 5500 5900
TRANSPORT WND (MPH) W 17 NW 10
VENT RATE (MPH-FT) 93500 59000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTHEAST
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
ILZ012-262130-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS NONE
CHANCE PRECIP (%) 30 20
MAX TEMP (24HR TREND) 83 (+3) 80
MIN RH % (24HR TREND) 54 (+4) 51
MIN TEMP (24HR TREND) 61 (-3) 58
MAX RH % (24HR TREND) 94 (+4) 99
20FT WIND AM (MPH) SW 10-12 NW 5-7
20FT WIND PM (MPH) W 10-12 LGT/VAR NW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2400 3200
MAX MIXING HGT (FT) 4900 5100
TRANSPORT WND (MPH) W 17 NW 12
VENT RATE (MPH-FT) 83300 66300
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTH
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
ILZ005-262130-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 82 (+3) 79
MIN RH % (24HR TREND) 54 (+4) 51
MIN TEMP (24HR TREND) 60 (-4) 56
MAX RH % (24HR TREND) 95 (+4) 99
20FT WIND AM (MPH) SW 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR NW 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2400 3400
MAX MIXING HGT (FT) 5000 5100
TRANSPORT WND (MPH) W 18 NW 11
VENT RATE (MPH-FT) 90000 61200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
WEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 10 TO
15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. LIGHT WINDS.
ILZ004-262130-
BOONE-
INCLUDING THE CITY OF BELVIDERE
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 82 (+3) 79
MIN RH % (24HR TREND) 52 (0) 49
MIN TEMP (24HR TREND) 60 (-4) 56
MAX RH % (24HR TREND) 95 (+3) 99
20FT WIND AM (MPH) SW 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR N 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 3200
MAX MIXING HGT (FT) 5400 5200
TRANSPORT WND (MPH) W 18 N 11
VENT RATE (MPH-FT) 97200 62400
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. LIGHT WINDS.
ILZ011-262130-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 82 (+2) 80
MIN RH % (24HR TREND) 54 (+1) 50
MIN TEMP (24HR TREND) 61 (-3) 57
MAX RH % (24HR TREND) 94 (+2) 98
20FT WIND AM (MPH) SW 10-11 NW 5-7
20FT WIND PM (MPH) W 10-11 LGT/VAR NW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 3000
MAX MIXING HGT (FT) 5200 5000
TRANSPORT WND (MPH) W 18 NW 11
VENT RATE (MPH-FT) 93600 60000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTH
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH.
MONDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHWEST WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTH WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
ILZ003-262130-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR CLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 82 (+2) 80
MIN RH % (24HR TREND) 51 (+1) 47
MIN TEMP (24HR TREND) 60 (-5) 55
MAX RH % (24HR TREND) 95 (+3) 100
20FT WIND AM (MPH) W 9-12 N 5-6
20FT WIND PM (MPH) NW 9-12 LGT/VAR N 5-6 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3600
MAX MIXING HGT (FT) 5600 5600
TRANSPORT WND (MPH) W 18 N 11
VENT RATE (MPH-FT) 100800 67200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING SOUTHWEST
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
10 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS 10 TO 15 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
ILZ008-262130-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR CLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 83 (+3) 80
MIN RH % (24HR TREND) 51 (+1) 47
MIN TEMP (24HR TREND) 60 (-5) 56
MAX RH % (24HR TREND) 94 (+2) 99
20FT WIND AM (MPH) W 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR NW 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3600
MAX MIXING HGT (FT) 5600 5500
TRANSPORT WND (MPH) W 18 NW 12
VENT RATE (MPH-FT) 100800 71500
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
10 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS 10 TO 15 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
ILZ010-262130-
LEE-
INCLUDING THE CITY OF DIXON
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR CLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 83 (+3) 81
MIN RH % (24HR TREND) 53 (+4) 49
MIN TEMP (24HR TREND) 61 (-4) 57
MAX RH % (24HR TREND) 94 (+2) 99
20FT WIND AM (MPH) SW 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR NW 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2700 3200
MAX MIXING HGT (FT) 5300 5200
TRANSPORT WND (MPH) W 16 NW 12
VENT RATE (MPH-FT) 84800 67600
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS 10 TO 15 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 60S.
SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTH WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 5 MPH.
ILZ019-262130-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR CLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 84 (+4) 81
MIN RH % (24HR TREND) 54 (+2) 50
MIN TEMP (24HR TREND) 62 (-3) 58
MAX RH % (24HR TREND) 92 (0) 95
20FT WIND AM (MPH) SW 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR NW 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2300 2600
MAX MIXING HGT (FT) 5100 4400
TRANSPORT WND (MPH) W 16 NW 10
VENT RATE (MPH-FT) 81600 44000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 10 TO
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTH WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS, BECOMING SOUTHEAST
AROUND 5 MPH AFTER MIDNIGHT.
ILZ020-262130-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS NONE
CHANCE PRECIP (%) 20 20
MAX TEMP (24HR TREND) 83 (+3) 81
MIN RH % (24HR TREND) 55 (+4) 51
MIN TEMP (24HR TREND) 62 (-2) 58
MAX RH % (24HR TREND) 94 (-2) 97
20FT WIND AM (MPH) SW 9-11 NW 5-7
20FT WIND PM (MPH) W 9-11 LGT/VAR NW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 2800
MAX MIXING HGT (FT) 4800 4600
TRANSPORT WND (MPH) W 17 NW 12
VENT RATE (MPH-FT) 81600 59800
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ021-262130-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 84 (+3) 82
MIN RH % (24HR TREND) 56 (+5) 52
MIN TEMP (24HR TREND) 63 (-1) 59
MAX RH % (24HR TREND) 93 (-5) 97
20FT WIND AM (MPH) SW 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 2600
MAX MIXING HGT (FT) 4600 4400
TRANSPORT WND (MPH) W 16 NW 11
VENT RATE (MPH-FT) 73600 52800
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
ILZ022-262130-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR PCLDY MCLEAR
PRECIP TYPE TSTMS NONE SHOWERS NONE
CHANCE PRECIP (%) 20 10 20
MAX TEMP (24HR TREND) 83 (+4) 81
MIN RH % (24HR TREND) 56 (+7) 51
MIN TEMP (24HR TREND) 63 (-1) 59
MAX RH % (24HR TREND) 95 (+1) 98
20FT WIND AM (MPH) SW 9-11 LGT/VAR
20FT WIND PM (MPH) W 9-11 LGT/VAR N 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2200 3400
MAX MIXING HGT (FT) 4700 4600
TRANSPORT WND (MPH) W 17 NW 11
VENT RATE (MPH-FT) 79900 55200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING NORTH
AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS AROUND
70. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ032-262130-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10 10
MAX TEMP (24HR TREND) 85 (+4) 82
MIN RH % (24HR TREND) 57 (+6) 53
MIN TEMP (24HR TREND) 62 (-2) 58
MAX RH % (24HR TREND) 96 (0) 100
20FT WIND AM (MPH) SW 9-10 LGT/VAR
20FT WIND PM (MPH) W 9-10 LGT/VAR NW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 2700
MAX MIXING HGT (FT) 4800 4300
TRANSPORT WND (MPH) W 17 NW 10
VENT RATE (MPH-FT) 81600 43000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 70S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
ILZ023-262130-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY MCLEAR PCLDY MCLEAR
PRECIP TYPE TSTMS NONE SHOWERS NONE
CHANCE PRECIP (%) 30 10 20
MAX TEMP (24HR TREND) 84 (+4) 81
MIN RH % (24HR TREND) 58 (+9) 52
MIN TEMP (24HR TREND) 62 (-1) 58
MAX RH % (24HR TREND) 95 (+1) 99
20FT WIND AM (MPH) SW 8-10 LGT/VAR
20FT WIND PM (MPH) W 8-10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2100 3000
MAX MIXING HGT (FT) 4600 4200
TRANSPORT WND (MPH) W 18 NW 9
VENT RATE (MPH-FT) 82800 37800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
ILZ039-262130-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10 10
MAX TEMP (24HR TREND) 84 (+4) 81
MIN RH % (24HR TREND) 61 (+10) 54
MIN TEMP (24HR TREND) 62 (-1) 58
MAX RH % (24HR TREND) 96 (+3) 99
20FT WIND AM (MPH) SW 8-10 LGT/VAR
20FT WIND PM (MPH) W 8-10 LGT/VAR NW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2900
MAX MIXING HGT (FT) 4500 4300
TRANSPORT WND (MPH) W 17 NW 9
VENT RATE (MPH-FT) 76500 38700
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS, BECOMING SOUTHEAST
AROUND 5 MPH AFTER MIDNIGHT.
ILZ033-262130-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE SHOWERS NONE
CHANCE PRECIP (%) 50 10 10
MAX TEMP (24HR TREND) 84 (+4) 81
MIN RH % (24HR TREND) 60 (+11) 53
MIN TEMP (24HR TREND) 62 (0) 58
MAX RH % (24HR TREND) 96 (+1) 98
20FT WIND AM (MPH) SW 8-10 LGT/VAR
20FT WIND PM (MPH) W 8-10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2000 2900
MAX MIXING HGT (FT) 4500 4300
TRANSPORT WND (MPH) W 17 NW 9
VENT RATE (MPH-FT) 76500 38700
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
INZ010-262130-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY MCLEAR PCLDY MCLEAR
PRECIP TYPE TSTMS NONE SHOWERS NONE
CHANCE PRECIP (%) 50 10 20
MAX TEMP (24HR TREND) 83 (+5) 80
MIN RH % (24HR TREND) 64 (+18) 56
MIN TEMP (24HR TREND) 62 (+3) 57
MAX RH % (24HR TREND) 96 (-1) 99
20FT WIND AM (MPH) SW 8-9 LGT/VAR
20FT WIND PM (MPH) W 8-9 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1800 3100
MAX MIXING HGT (FT) 4500 4500
TRANSPORT WND (MPH) W 17 NW 10
VENT RATE (MPH-FT) 76500 45000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
INZ011-262130-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
508 AM CDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 60 20 10
MAX TEMP (24HR TREND) 82 (+4) 80
MIN RH % (24HR TREND) 64 (+19) 57
MIN TEMP (24HR TREND) 62 (+4) 57
MAX RH % (24HR TREND) 97 (0) 99
20FT WIND AM (MPH) SW 8-10 LGT/VAR
20FT WIND PM (MPH) SW 8-10 LGT/VAR N 3-5 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1900 3300
MAX MIXING HGT (FT) 4300 4500
TRANSPORT WND (MPH) SW 18 N 9
VENT RATE (MPH-FT) 77400 40500
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
5 TO 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
INZ019-262130-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
608 AM EDT WED AUG 26 2026
TODAY TONIGHT THU THU NIGHT
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 60 20 10
MAX TEMP (24HR TREND) 83 (+5) 81
MIN RH % (24HR TREND) 66 (+20) 57
MIN TEMP (24HR TREND) 62 (+1) 58
MAX RH % (24HR TREND) 96 (0) 98
20FT WIND AM (MPH) SW 8-9 LGT/VAR
20FT WIND PM (MPH) SW 8-9 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1900 3100
MAX MIXING HGT (FT) 4100 4500
TRANSPORT WND (MPH) SW 17 NW 9
VENT RATE (MPH-FT) 69700 40500
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. LIGHT WINDS.
PETR
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page