091
FNUS53 KLOT 300926
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
426 AM CDT SUN AUG 30 2026
DISCUSSION
SCATTERED SHOWERS AND STORMS ARE ONGOING THIS MORNING AND WILL
CONTINUE THROUGH AT LEAST THE LATE MORNING. COVERAGE SHOULD
DIMINISH THROUGH THE DAY, BUT THERE IS ADDITIONAL CHANCES, MAINLY
NORTH OF I-80, THIS AFTERNOON/EVENING. SOUTH-SOUTHWESTERLY WINDS
ARE EXPECTED TO BE BREEZY WITH GUSTS AROUND 25 MPH, PARTICULARLY
IN THE LATE MORNING/EARLY AFTERNOON.
PERIODIC SHOWER/STORM CHANCES WILL CONTINUE THROUGH THE WEEK,
THOUGH THERE WILL BE MANY DRY HOURS. INCREASING HEAT AND HUMIDITY
IS ALSO EXPECTED WITH HOTTEST TEMPERATURES ON TUESDAY AND
WEDNESDAY WHERE HEAT INDICES ARE EXPECTED TO CLIMB INTO THE 90S
AND POTENTIALLY AROUND 100 FOR AREAS SOUTH OF I-80.
ILZ014-311100-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 20 10 10
MAX TEMP (24HR TREND) 85 (+5) 90
MIN RH % (24HR TREND) 54 (0) 48
MIN TEMP (24HR TREND) 70 (+1) 73
MAX RH % (24HR TREND) 72 (-6) 79
20FT WIND AM (MPH) SW 11-12 SW 9-10
20FT WIND PM (MPH) SW 11-12 S 8 SW 9-10 SW 5-7
PEAK WIND GUSTS (MPH) 24 15 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1300
MAX MIXING HGT (FT) 2100 2900
TRANSPORT WND (MPH) SW 16 SW 18
VENT RATE (MPH-FT) 33600 52200
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHEAST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH, BECOMING NORTH IN
THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ006-311100-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 50 30 10 20
MAX TEMP (24HR TREND) 84 (+5) 88
MIN RH % (24HR TREND) 58 (+1) 53
MIN TEMP (24HR TREND) 69 (0) 72
MAX RH % (24HR TREND) 79 (-2) 88
20FT WIND AM (MPH) SW 10-15 SW 9-10
20FT WIND PM (MPH) SW 10-15 S 8 SW 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 24 15 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1500 1400
MAX MIXING HGT (FT) 1800 2400
TRANSPORT WND (MPH) SW 18 SW 18
VENT RATE (MPH-FT) 32400 43200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 70. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE MID 80S. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
UPPER 60S. NORTHEAST WINDS AROUND 5 MPH IN THE EVENING, BECOMING
LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 80S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ001-311100-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10 10
MAX TEMP (24HR TREND) 85 (+5) 90
MIN RH % (24HR TREND) 55 (0) 49
MIN TEMP (24HR TREND) 69 (+2) 72
MAX RH % (24HR TREND) 78 (-4) 77
20FT WIND AM (MPH) S 10-11 SW 8-9
20FT WIND PM (MPH) SW 10-11 S 7 SW 8-9 S 6-7
PEAK WIND GUSTS (MPH) 21 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1400 1400
MAX MIXING HGT (FT) 2200 2600
TRANSPORT WND (MPH) SW 17 SW 17
VENT RATE (MPH-FT) 37400 44200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH, BECOMING EAST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING
NORTH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ002-311100-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10 10
MAX TEMP (24HR TREND) 85 (+5) 90
MIN RH % (24HR TREND) 57 (+1) 48
MIN TEMP (24HR TREND) 69 (+2) 72
MAX RH % (24HR TREND) 78 (-4) 78
20FT WIND AM (MPH) S 9-11 SW 8-9
20FT WIND PM (MPH) SW 9-11 S 6-7 SW 8-9 S 6-7
PEAK WIND GUSTS (MPH) 21 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1300
MAX MIXING HGT (FT) 2200 2300
TRANSPORT WND (MPH) SW 16 SW 17
VENT RATE (MPH-FT) 35200 39100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70. NORTH WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING
NORTH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ013-311100-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 20 10 10
MAX TEMP (24HR TREND) 84 (+4) 90
MIN RH % (24HR TREND) 56 (0) 48
MIN TEMP (24HR TREND) 70 (+1) 72
MAX RH % (24HR TREND) 75 (-5) 80
20FT WIND AM (MPH) SW 11-12 SW 9-10
20FT WIND PM (MPH) SW 11-12 S 8 SW 9-10 SW 5-6
PEAK WIND GUSTS (MPH) 21 15 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1400
MAX MIXING HGT (FT) 1800 2700
TRANSPORT WND (MPH) SW 14 SW 18
VENT RATE (MPH-FT) 27000 48600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. EAST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. NORTHEAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH, BECOMING NORTHEAST
IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ012-311100-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 20 10 10
MAX TEMP (24HR TREND) 84 (+6) 89
MIN RH % (24HR TREND) 60 (-1) 53
MIN TEMP (24HR TREND) 68 (+1) 71
MAX RH % (24HR TREND) 77 (-8) 85
20FT WIND AM (MPH) SW 11-12 S 9-10
20FT WIND PM (MPH) SW 11-12 S 8 SW 9-10 SW 5-6
PEAK WIND GUSTS (MPH) 23 15 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1300
MAX MIXING HGT (FT) 1600 2300
TRANSPORT WND (MPH) SW 14 SW 17
VENT RATE (MPH-FT) 24000 39100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. EAST WINDS
AROUND 5 MPH.
FRIDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY. HIGHS
IN THE MID 80S. NORTHEAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ005-311100-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 50 30 10 20
MAX TEMP (24HR TREND) 83 (+6) 88
MIN RH % (24HR TREND) 63 (-1) 56
MIN TEMP (24HR TREND) 69 (+2) 71
MAX RH % (24HR TREND) 81 (-5) 89
20FT WIND AM (MPH) SW 10-15 SW 9-10
20FT WIND PM (MPH) SW 10-15 S 7 SW 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 24 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1500 1400
MAX MIXING HGT (FT) 1900 2300
TRANSPORT WND (MPH) SW 20 SW 18
VENT RATE (MPH-FT) 39900 41400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTHWEST WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
THURSDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. WEST WINDS AROUND 5 MPH,
BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
UPPER 60S. NORTHEAST WINDS AROUND 5 MPH IN THE EVENING, BECOMING
LIGHT.
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
ILZ004-311100-
BOONE-
INCLUDING THE CITY OF BELVIDERE
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 50 20 10 20
MAX TEMP (24HR TREND) 83 (+6) 88
MIN RH % (24HR TREND) 63 (-4) 57
MIN TEMP (24HR TREND) 69 (+2) 71
MAX RH % (24HR TREND) 82 (-7) 88
20FT WIND AM (MPH) SW 10-15 S 9-10
20FT WIND PM (MPH) SW 10-15 S 7 SW 9-10 LGT/VAR
PEAK WIND GUSTS (MPH) 23 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1400 1400
MAX MIXING HGT (FT) 1700 2400
TRANSPORT WND (MPH) SW 21 SW 17
VENT RATE (MPH-FT) 37400 40800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING SOUTHEAST AFTER MIDNIGHT.
THURSDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. NORTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ011-311100-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50 20 10 10
MAX TEMP (24HR TREND) 83 (+6) 88
MIN RH % (24HR TREND) 62 (-3) 55
MIN TEMP (24HR TREND) 68 (+1) 71
MAX RH % (24HR TREND) 78 (-14) 86
20FT WIND AM (MPH) S 11-12 S 9-10
20FT WIND PM (MPH) S 11-12 S 8 SW 9-10 S 5-6
PEAK WIND GUSTS (MPH) 23 16 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1400
MAX MIXING HGT (FT) 1600 2300
TRANSPORT WND (MPH) SW 14 SW 17
VENT RATE (MPH-FT) 24000 39100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE UPPER 80S. EAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ003-311100-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 50 20 10 20
MAX TEMP (24HR TREND) 83 (+6) 88
MIN RH % (24HR TREND) 62 (-3) 56
MIN TEMP (24HR TREND) 70 (+2) 71
MAX RH % (24HR TREND) 81 (-5) 88
20FT WIND AM (MPH) SW 10-15 S 10
20FT WIND PM (MPH) S 10-15 S 7-8 SW 10 LGT/VAR
PEAK WIND GUSTS (MPH) 24 16 18
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1300 1500
MAX MIXING HGT (FT) 1700 2600
TRANSPORT WND (MPH) SW 20 SW 17
VENT RATE (MPH-FT) 35700 44200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING SOUTHEAST AFTER MIDNIGHT.
THURSDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH,
BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
ILZ008-311100-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 20 10 10
MAX TEMP (24HR TREND) 83 (+6) 88
MIN RH % (24HR TREND) 63 (-2) 56
MIN TEMP (24HR TREND) 69 (+1) 71
MAX RH % (24HR TREND) 78 (-7) 86
20FT WIND AM (MPH) S 10-15 S 9
20FT WIND PM (MPH) S 10-15 S 8 SW 9 LGT/VAR
PEAK WIND GUSTS (MPH) 23 16 19
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 1200 1600
MAX MIXING HGT (FT) 1600 2400
TRANSPORT WND (MPH) SW 17 SW 16
VENT RATE (MPH-FT) 27200 38400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE UPPER 80S. EAST WINDS AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. EAST WINDS
AROUND 5 MPH.
ILZ010-311100-
LEE-
INCLUDING THE CITY OF DIXON
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50 10 10 10
MAX TEMP (24HR TREND) 85 (+8) 89
MIN RH % (24HR TREND) 60 (-3) 54
MIN TEMP (24HR TREND) 69 (+1) 71
MAX RH % (24HR TREND) 76 (-8) 85
20FT WIND AM (MPH) S 11-12 S 9
20FT WIND PM (MPH) S 11-12 S 8-9 SW 9 S 5
PEAK WIND GUSTS (MPH) 20 16 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1100 1600
MAX MIXING HGT (FT) 1600 2600
TRANSPORT WND (MPH) SW 16 SW 16
VENT RATE (MPH-FT) 25600 41600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. EAST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH, BECOMING SOUTH IN
THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
ILZ019-311100-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50 10
MAX TEMP (24HR TREND) 85 (+6) 90
MIN RH % (24HR TREND) 57 (-4) 51
MIN TEMP (24HR TREND) 69 (+1) 71
MAX RH % (24HR TREND) 76 (-8) 81
20FT WIND AM (MPH) SW 10 SW 8-9
20FT WIND PM (MPH) S 10 S 8 SW 8-9 S 5-6
PEAK WIND GUSTS (MPH) 20 17 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1100 1300
MAX MIXING HGT (FT) 1700 2400
TRANSPORT WND (MPH) S 12 SW 17
VENT RATE (MPH-FT) 22100 40800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH, BECOMING SOUTH
IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
ILZ020-311100-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50 10 10 10
MAX TEMP (24HR TREND) 84 (+4) 90
MIN RH % (24HR TREND) 60 (0) 52
MIN TEMP (24HR TREND) 68 (+1) 71
MAX RH % (24HR TREND) 77 (-10) 82
20FT WIND AM (MPH) S 11 S 8-10
20FT WIND PM (MPH) S 11 S 7-8 SW 8-10 S 5-6
PEAK WIND GUSTS (MPH) 19 15 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1200 1300
MAX MIXING HGT (FT) 1800 2300
TRANSPORT WND (MPH) SW 13 SW 17
VENT RATE (MPH-FT) 25200 39100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS AROUND 90. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING WEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ021-311100-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10
MAX TEMP (24HR TREND) 86 (+6) 91
MIN RH % (24HR TREND) 57 (-3) 50
MIN TEMP (24HR TREND) 69 (+1) 72
MAX RH % (24HR TREND) 76 (-13) 79
20FT WIND AM (MPH) S 10 S 8-9
20FT WIND PM (MPH) S 10 S 7-8 SW 8-9 S 5
PEAK WIND GUSTS (MPH) 19 16 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1300
MAX MIXING HGT (FT) 1900 2600
TRANSPORT WND (MPH) SW 14 SW 17
VENT RATE (MPH-FT) 28500 44200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 90. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH, BECOMING SOUTH
IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
ILZ022-311100-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10 10
MAX TEMP (24HR TREND) 85 (+4) 90
MIN RH % (24HR TREND) 57 (0) 50
MIN TEMP (24HR TREND) 69 (+2) 72
MAX RH % (24HR TREND) 77 (-7) 80
20FT WIND AM (MPH) S 11 S 8-9
20FT WIND PM (MPH) SW 11 S 7-8 SW 8-9 S 5-6
PEAK WIND GUSTS (MPH) 20 15 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1300 1300
MAX MIXING HGT (FT) 2000 2400
TRANSPORT WND (MPH) SW 14 SW 16
VENT RATE (MPH-FT) 30000 38400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS AROUND 90. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. NORTHEAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. EAST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. EAST WINDS AROUND 5 MPH, BECOMING NORTH IN
THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ032-311100-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 87 (+7) 92
MIN RH % (24HR TREND) 54 (-5) 48
MIN TEMP (24HR TREND) 69 (+1) 72
MAX RH % (24HR TREND) 76 (-15) 76
20FT WIND AM (MPH) SW 9 SW 8-9
20FT WIND PM (MPH) S 9 S 8 SW 8-9 S 6
PEAK WIND GUSTS (MPH) 18 17 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1500 1400
MAX MIXING HGT (FT) 2100 2500
TRANSPORT WND (MPH) S 14 SW 17
VENT RATE (MPH-FT) 31500 42500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHEAST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 80S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING
SOUTH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ023-311100-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 86 (+6) 91
MIN RH % (24HR TREND) 55 (0) 49
MIN TEMP (24HR TREND) 68 (+2) 72
MAX RH % (24HR TREND) 79 (-12) 77
20FT WIND AM (MPH) S 9 SW 7-8
20FT WIND PM (MPH) S 9 S 7 SW 7-8 S 5
PEAK WIND GUSTS (MPH) 18 16
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1600 1300
MAX MIXING HGT (FT) 2000 2700
TRANSPORT WND (MPH) SW 17 SW 16
VENT RATE (MPH-FT) 34000 43200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING WEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 80S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ039-311100-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 87 (+7) 92
MIN RH % (24HR TREND) 53 (-5) 49
MIN TEMP (24HR TREND) 68 (+2) 72
MAX RH % (24HR TREND) 78 (-15) 77
20FT WIND AM (MPH) S 9 SW 8-9
20FT WIND PM (MPH) S 9 S 7-8 SW 8-9 S 6-7
PEAK WIND GUSTS (MPH) 18 15 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1700 1400
MAX MIXING HGT (FT) 2700 2400
TRANSPORT WND (MPH) S 14 SW 16
VENT RATE (MPH-FT) 40500 38400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. EAST
WINDS AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST WINDS
AROUND 5 MPH.
SATURDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 80S. EAST WINDS AROUND 5 MPH, BECOMING SOUTH
IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH.
ILZ033-311100-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 86 (+5) 91
MIN RH % (24HR TREND) 55 (+1) 48
MIN TEMP (24HR TREND) 68 (+2) 71
MAX RH % (24HR TREND) 81 (-15) 79
20FT WIND AM (MPH) S 8-9 SW 7-8
20FT WIND PM (MPH) S 8-9 S 6 SW 7-8 S 5
PEAK WIND GUSTS (MPH) 18 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1700 1400
MAX MIXING HGT (FT) 2500 2500
TRANSPORT WND (MPH) SW 13 SW 16
VENT RATE (MPH-FT) 35000 40000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 90. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 80S. LIGHT WINDS, BECOMING SOUTHWEST AROUND
5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
INZ010-311100-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 85 (+5) 90
MIN RH % (24HR TREND) 56 (+3) 49
MIN TEMP (24HR TREND) 68 (+2) 72
MAX RH % (24HR TREND) 79 (-19) 78
20FT WIND AM (MPH) S 8-9 SW 7-8
20FT WIND PM (MPH) SW 8-9 S 5-6 SW 7-8 S 5
PEAK WIND GUSTS (MPH) 18 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1700 1300
MAX MIXING HGT (FT) 2400 2700
TRANSPORT WND (MPH) SW 14 SW 18
VENT RATE (MPH-FT) 36000 48600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
INZ011-311100-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
426 AM CDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 85 (+4) 90
MIN RH % (24HR TREND) 56 (+3) 48
MIN TEMP (24HR TREND) 69 (+3) 72
MAX RH % (24HR TREND) 80 (-12) 78
20FT WIND AM (MPH) S 9-10 SW 8-9
20FT WIND PM (MPH) SW 9-10 S 5-6 SW 8-9 S 5-6
PEAK WIND GUSTS (MPH) 18 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1800 1500
MAX MIXING HGT (FT) 2400 2600
TRANSPORT WND (MPH) SW 16 SW 18
VENT RATE (MPH-FT) 38400 46800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE MORNING. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ019-311100-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
526 AM EDT SUN AUG 30 2026
TODAY TONIGHT MON MON NIGHT
CLOUD COVER PCLDY PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 85 (+4) 90
MIN RH % (24HR TREND) 56 (+5) 51
MIN TEMP (24HR TREND) 68 (+2) 71
MAX RH % (24HR TREND) 82 (-7) 82
20FT WIND AM (MPH) S 8 SW 7-8
20FT WIND PM (MPH) SW 8 S 5-6 SW 7-8 LGT/VAR
PEAK WIND GUSTS (MPH) 17 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 1700 1400
MAX MIXING HGT (FT) 2600 2300
TRANSPORT WND (MPH) SW 14 SW 16
VENT RATE (MPH-FT) 39000 36800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
TUESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 90S. SOUTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 70S. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 80S. SOUTHEAST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
DK
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page