123
FNUS53 KLOT 280909
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
409 AM CDT FRI AUG 28 2026
DISCUSSION
LIGHT SOUTHERLY WINDS ARE EXPECTED TODAY WITH A WEAK LAKE BREEZE
THIS AFTERNOON TURNING WINDS TO THE SOUTHEAST NEAR LAKE MICHIGAN.
MINIMUM RELATIVE HUMIDITIES ARE EXPECTED IN THE 40 TO 50 PERCENT
RANGE, BUT SHOULD HAVE DECENT RECOVERY OVERNIGHT.
PERIODIC SHOWER/STORM CHANCES ARE EXPECTED TO THIS WEEKEND AND
INTO EARLY NEXT WEEK, THOUGH THERE WILL BE MANY DRY HOURS. SUNDAY
MAY BE A PARTICULARLY BREEZY DAY WITH SOUTHWESTERLY WIND GUSTS
AROUND 20 MPH. INCREASING HEAT AND HUMIDITY IS ALSO EXPECTED NEXT
WEEK WITH HEAT INDICES CLIMBING INTO THE 90S.
ILZ014-282115-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 82 (+1) 81
MIN RH % (24HR TREND) 44 (-5) 48
MIN TEMP (24HR TREND) 62 (-2) 67
MAX RH % (24HR TREND) 88 (-3) 81
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) SW 3-5 LGT/VAR S 6-8 S 8-10
PEAK WIND GUSTS (MPH) 14 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3900 3600
MAX MIXING HGT (FT) 6800 4800
TRANSPORT WND (MPH) SW 6 SW 11
VENT RATE (MPH-FT) 47600 57600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
ILZ006-282115-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30
MAX TEMP (24HR TREND) 81 (+1) 80
MIN RH % (24HR TREND) 48 (-6) 51
MIN TEMP (24HR TREND) 60 (0) 66
MAX RH % (24HR TREND) 92 (-7) 83
20FT WIND AM (MPH) LGT/VAR SW 7-9
20FT WIND PM (MPH) SW 3-6 LGT/VAR S 7-9 S 8-10
PEAK WIND GUSTS (MPH) 14 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3700 3500
MAX MIXING HGT (FT) 6600 4200
TRANSPORT WND (MPH) SW 8 SW 11
VENT RATE (MPH-FT) 52800 50400
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 70. SOUTHWEST WINDS AROUND 5 MPH IN THE EVENING, BECOMING
LIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
INZ001-282115-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 81 (+2) 81
MIN RH % (24HR TREND) 48 (-5) 51
MIN TEMP (24HR TREND) 58 (-2) 65
MAX RH % (24HR TREND) 96 (-1) 86
20FT WIND AM (MPH) LGT/VAR S 5-6
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5-6 S 6-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3400
MAX MIXING HGT (FT) 6100 4600
TRANSPORT WND (MPH) S 5 S 10
VENT RATE (MPH-FT) 36600 46000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
INZ002-282115-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER CLEAR MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 80 (+1) 81
MIN RH % (24HR TREND) 49 (-3) 52
MIN TEMP (24HR TREND) 57 (-2) 65
MAX RH % (24HR TREND) 96 (-3) 86
20FT WIND AM (MPH) LGT/VAR S 5-6
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5-6 S 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2300 3100
MAX MIXING HGT (FT) 5700 4500
TRANSPORT WND (MPH) SE 4 S 10
VENT RATE (MPH-FT) 28500 45000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
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. 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 LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
ILZ013-282115-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 82 (-1) 81
MIN RH % (24HR TREND) 45 (+1) 50
MIN TEMP (24HR TREND) 60 (-2) 66
MAX RH % (24HR TREND) 92 (-3) 82
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) SW 3-5 LGT/VAR S 6-8 S 8-10
PEAK WIND GUSTS (MPH) 14 18
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3900 3400
MAX MIXING HGT (FT) 6500 4400
TRANSPORT WND (MPH) SW 6 SW 11
VENT RATE (MPH-FT) 45500 52800
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
ILZ012-282115-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 81 (-1) 80
MIN RH % (24HR TREND) 49 (+3) 55
MIN TEMP (24HR TREND) 59 (-1) 65
MAX RH % (24HR TREND) 95 (-3) 84
20FT WIND AM (MPH) LGT/VAR S 7-8
20FT WIND PM (MPH) SW 3-5 LGT/VAR S 7-8 S 8-10
PEAK WIND GUSTS (MPH) 15 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.01-0.05
11 AM MIXING HGT (FT) 3100 2500
MAX MIXING HGT (FT) 5700 3700
TRANSPORT WND (MPH) W 6 SW 12
VENT RATE (MPH-FT) 39900 48100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY 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 IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTHWEST WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ005-282115-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30
MAX TEMP (24HR TREND) 81 (-1) 79
MIN RH % (24HR TREND) 49 (+1) 57
MIN TEMP (24HR TREND) 60 (+1) 66
MAX RH % (24HR TREND) 92 (-7) 84
20FT WIND AM (MPH) LGT/VAR SW 7-9
20FT WIND PM (MPH) SW 3-5 LGT/VAR S 7-9 S 8-10
PEAK WIND GUSTS (MPH) 15 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3400 3000
MAX MIXING HGT (FT) 5900 3700
TRANSPORT WND (MPH) W 8 SW 13
VENT RATE (MPH-FT) 47200 51800
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 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
LOWER 70S. SOUTH WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
ILZ004-282115-
BOONE-
INCLUDING THE CITY OF BELVIDERE
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30
MAX TEMP (24HR TREND) 81 (+1) 79
MIN RH % (24HR TREND) 46 (-2) 56
MIN TEMP (24HR TREND) 60 (+1) 66
MAX RH % (24HR TREND) 92 (-7) 83
20FT WIND AM (MPH) LGT/VAR S 7-9
20FT WIND PM (MPH) SW 2-5 LGT/VAR S 7-9 S 9-10
PEAK WIND GUSTS (MPH) 16 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.01-0.05
11 AM MIXING HGT (FT) 3500 2200
MAX MIXING HGT (FT) 5900 3200
TRANSPORT WND (MPH) W 8 SW 12
VENT RATE (MPH-FT) 47200 41600
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. 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. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
ILZ011-282115-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 81 (0) 79
MIN RH % (24HR TREND) 49 (+1) 57
MIN TEMP (24HR TREND) 59 (-1) 65
MAX RH % (24HR TREND) 94 (-5) 84
20FT WIND AM (MPH) LGT/VAR S 7-9
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 7-9 S 9-10
PEAK WIND GUSTS (MPH) 15 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3300 2200
MAX MIXING HGT (FT) 5500 3500
TRANSPORT WND (MPH) W 6 S 13
VENT RATE (MPH-FT) 38500 49000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY 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 AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 70. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ003-282115-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30
MAX TEMP (24HR TREND) 82 (+1) 79
MIN RH % (24HR TREND) 44 (-3) 55
MIN TEMP (24HR TREND) 60 (+1) 66
MAX RH % (24HR TREND) 91 (-8) 83
20FT WIND AM (MPH) LGT/VAR S 7-10
20FT WIND PM (MPH) SW 2-5 LGT/VAR S 7-10 S 10-11
PEAK WIND GUSTS (MPH) 17 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3900 2000
MAX MIXING HGT (FT) 6000 3100
TRANSPORT WND (MPH) W 8 SW 13
VENT RATE (MPH-FT) 48000 43400
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS 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
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS 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
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. NORTH
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
5 TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH.
ILZ008-282115-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE SHOWERS NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 82 (+1) 79
MIN RH % (24HR TREND) 46 (-1) 56
MIN TEMP (24HR TREND) 59 (+1) 66
MAX RH % (24HR TREND) 92 (-6) 82
20FT WIND AM (MPH) LGT/VAR S 7-9
20FT WIND PM (MPH) SW 2-5 LGT/VAR S 7-9 S 10-11
PEAK WIND GUSTS (MPH) 18 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3900 2100
MAX MIXING HGT (FT) 5800 3000
TRANSPORT WND (MPH) SW 8 S 13
VENT RATE (MPH-FT) 46400 42000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS 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
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 5 MPH IN THE EVENING, BECOMING
LIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ010-282115-
LEE-
INCLUDING THE CITY OF DIXON
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 82 (+1) 79
MIN RH % (24HR TREND) 47 (-2) 57
MIN TEMP (24HR TREND) 59 (0) 66
MAX RH % (24HR TREND) 92 (-6) 82
20FT WIND AM (MPH) LGT/VAR S 6-9
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 6-9 S 10-11
PEAK WIND GUSTS (MPH) 17 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3300 2100
MAX MIXING HGT (FT) 5700 3200
TRANSPORT WND (MPH) W 6 S 13
VENT RATE (MPH-FT) 39900 44800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS 10 TO 15 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. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 70. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTHEAST WINDS
AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ019-282115-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 82 (+1) 81
MIN RH % (24HR TREND) 47 (-1) 54
MIN TEMP (24HR TREND) 59 (-1) 66
MAX RH % (24HR TREND) 94 (-5) 82
20FT WIND AM (MPH) LGT/VAR S 5-7
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5-7 SE 8-9
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2800 2500
MAX MIXING HGT (FT) 5700 3800
TRANSPORT WND (MPH) W 4 S 12
VENT RATE (MPH-FT) 28500 49400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 10 TO
15 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 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ020-282115-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 82 (0) 80
MIN RH % (24HR TREND) 49 (+4) 54
MIN TEMP (24HR TREND) 59 (-1) 66
MAX RH % (24HR TREND) 96 (-4) 84
20FT WIND AM (MPH) LGT/VAR S 5-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5-8 S 8-9
PEAK WIND GUSTS (MPH) 13 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 2400
MAX MIXING HGT (FT) 5500 3800
TRANSPORT WND (MPH) W 5 S 11
VENT RATE (MPH-FT) 33000 45600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 10 TO
15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
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. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTHEAST WINDS
AROUND 5 MPH.
ILZ021-282115-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 82 (-1) 82
MIN RH % (24HR TREND) 49 (+1) 53
MIN TEMP (24HR TREND) 60 (-1) 66
MAX RH % (24HR TREND) 95 (-5) 83
20FT WIND AM (MPH) LGT/VAR S 5-6
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5-6 S 6-8
PEAK WIND GUSTS (MPH) 16
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2700 2700
MAX MIXING HGT (FT) 5700 4300
TRANSPORT WND (MPH) W 4 S 11
VENT RATE (MPH-FT) 28500 51600
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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 AROUND 90. SOUTH WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ022-282115-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 82 (0) 81
MIN RH % (24HR TREND) 49 (+1) 53
MIN TEMP (24HR TREND) 59 (-2) 65
MAX RH % (24HR TREND) 95 (-3) 84
20FT WIND AM (MPH) LGT/VAR S 5-7
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 5-7 S 7-8
PEAK WIND GUSTS (MPH) 17
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2800 2800
MAX MIXING HGT (FT) 5700 4300
TRANSPORT WND (MPH) SW 5 S 11
VENT RATE (MPH-FT) 34200 51600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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. SOUTH WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTH WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
ILZ032-282115-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 82 (+1) 82
MIN RH % (24HR TREND) 49 (-3) 53
MIN TEMP (24HR TREND) 59 (-1) 66
MAX RH % (24HR TREND) 96 (-3) 82
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 4-6 SE 6-8
PEAK WIND GUSTS (MPH) 18
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3000 3100
MAX MIXING HGT (FT) 5600 4300
TRANSPORT WND (MPH) W 4 S 10
VENT RATE (MPH-FT) 28000 43000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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 LOWER 90S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ023-282115-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10 10
MAX TEMP (24HR TREND) 82 (+1) 81
MIN RH % (24HR TREND) 48 (-3) 51
MIN TEMP (24HR TREND) 58 (-2) 65
MAX RH % (24HR TREND) 96 (-2) 83
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 4-5 S 5-6
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 3300
MAX MIXING HGT (FT) 5900 4600
TRANSPORT WND (MPH) SW 4 S 10
VENT RATE (MPH-FT) 29500 46000
VENT RATE CATEGORY POOR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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 AROUND 90. SOUTH WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTH WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
ILZ039-282115-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 81 (+1) 81
MIN RH % (24HR TREND) 49 (-6) 52
MIN TEMP (24HR TREND) 58 (-2) 65
MAX RH % (24HR TREND) 96 (-2) 82
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR S 4-5 SE 5-7
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2800 3100
MAX MIXING HGT (FT) 5700 4400
TRANSPORT WND (MPH) W 3 S 9
VENT RATE (MPH-FT) 17100 39600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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 LOWER 90S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTH WINDS
5 TO 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS 5 TO
10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
THURSDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 5 MPH.
ILZ033-282115-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 81 (0) 81
MIN RH % (24HR TREND) 47 (-6) 52
MIN TEMP (24HR TREND) 58 (-2) 64
MAX RH % (24HR TREND) 97 (-1) 83
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 3400
MAX MIXING HGT (FT) 6000 4500
TRANSPORT WND (MPH) W 3 S 9
VENT RATE (MPH-FT) 18000 40500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. EAST WINDS
AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
INZ010-282115-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 81 (+1) 81
MIN RH % (24HR TREND) 47 (-5) 51
MIN TEMP (24HR TREND) 57 (-2) 65
MAX RH % (24HR TREND) 97 (-2) 85
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 3600
MAX MIXING HGT (FT) 6000 4600
TRANSPORT WND (MPH) SW 3 S 9
VENT RATE (MPH-FT) 18000 41400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
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
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTH WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST
WINDS AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
INZ011-282115-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
409 AM CDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 10
MAX TEMP (24HR TREND) 80 (0) 81
MIN RH % (24HR TREND) 47 (-5) 50
MIN TEMP (24HR TREND) 57 (-1) 64
MAX RH % (24HR TREND) 98 (-2) 86
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2400 3600
MAX MIXING HGT (FT) 5900 4700
TRANSPORT WND (MPH) S 3 S 9
VENT RATE (MPH-FT) 17700 42300
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
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. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
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
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. EAST
WINDS AROUND 5 MPH, BECOMING SOUTH AFTER MIDNIGHT.
INZ019-282115-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
509 AM EDT FRI AUG 28 2026
TODAY TONIGHT SAT SAT NIGHT
CLOUD COVER CLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%)
MAX TEMP (24HR TREND) 80 (0) 81
MIN RH % (24HR TREND) 48 (-4) 53
MIN TEMP (24HR TREND) 58 (-1) 64
MAX RH % (24HR TREND) 98 (+2) 87
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2500 3300
MAX MIXING HGT (FT) 5900 4500
TRANSPORT WND (MPH) W 3 S 8
VENT RATE (MPH-FT) 17700 36000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY
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 AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 90. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
DK
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