828
FNUS53 KLOT 040849
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
349 AM CDT TUE AUG 4 2026
DISCUSSION
DRY WEATHER IS EXPECTED TODAY. HOWEVER, A FEW WAVES
OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TONIGHT THROUGH
THURSDAY AS A COLD FRONT SHIFTS INTO THE AREA. HEAVY RAIN AND
POSSIBLE FLOODING WILL AGAIN BE POSSIBLE DURING THIS TIME PERIOD.
THERE IS QUITE A BIT OF UNCERTAINTY FOR LATE THIS WEEK INTO NEXT
WEEKEND. HOWEVER, THERE ARE SIGNS THAT ANOTHER PERIOD OF ACTIVE
WEATHER (WITH SHOWERS AND THUNDERSTORMS) IS POSSIBLE EARLY NEXT
WEEK.
ILZ014-042115-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLDY CLOUDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 20 70 90
MAX TEMP (24HR TREND) 85 (+3) 81
MIN RH % (24HR TREND) 48 (-8) 66
MIN TEMP (24HR TREND) 66 (+1) 64
MAX RH % (24HR TREND) 93 (+1) 100
20FT WIND AM (MPH) S 6-7 LGT/VAR
20FT WIND PM (MPH) S 6-7 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.10-0.25 1.00-1.50
11 AM MIXING HGT (FT) 4300 2100
MAX MIXING HGT (FT) 5700 3400
TRANSPORT WND (MPH) S 10 SW 10
VENT RATE (MPH-FT) 57000 34000
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. NORTH
WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTHWEST WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS AROUND 70. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ006-042115-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY CLOUDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 70 80
MAX TEMP (24HR TREND) 84 (+4) 78
MIN RH % (24HR TREND) 51 (-8) 74
MIN TEMP (24HR TREND) 66 (+3) 60
MAX RH % (24HR TREND) 100 (+2) 100
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) 16
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.25-0.50 0.75-1.00
11 AM MIXING HGT (FT) 4400 1800
MAX MIXING HGT (FT) 5400 2500
TRANSPORT WND (MPH) SW 12 S 8
VENT RATE (MPH-FT) 70200 20000
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
70S. NORTHWEST WINDS AROUND 5 MPH, BECOMING NORTHEAST IN THE
AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. PARTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 80S. SOUTHWEST WINDS AROUND 5 MPH, BECOMING SOUTH IN THE
AFTERNOON.
MONDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ001-042115-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLDY CLOUDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 50 90
MAX TEMP (24HR TREND) 84 (+3) 82
MIN RH % (24HR TREND) 50 (-8) 65
MIN TEMP (24HR TREND) 61 (-1) 64
MAX RH % (24HR TREND) 100 (+6) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) S 4-5 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.50-0.75
11 AM MIXING HGT (FT) 4200 2000
MAX MIXING HGT (FT) 5300 3400
TRANSPORT WND (MPH) S 8 SW 11
VENT RATE (MPH-FT) 42400 40800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH, BECOMING NORTH IN
THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
INZ002-042115-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 40 90
MAX TEMP (24HR TREND) 83 (+2) 81
MIN RH % (24HR TREND) 51 (-5) 65
MIN TEMP (24HR TREND) 61 (0) 64
MAX RH % (24HR TREND) 100 (+3) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) S 4-5 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.25-0.50
11 AM MIXING HGT (FT) 4300 1900
MAX MIXING HGT (FT) 5200 3200
TRANSPORT WND (MPH) S 8 SW 11
VENT RATE (MPH-FT) 41600 38400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
ILZ013-042115-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLDY CLOUDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 40 70 90
MAX TEMP (24HR TREND) 85 (+2) 80
MIN RH % (24HR TREND) 48 (-5) 70
MIN TEMP (24HR TREND) 67 (+3) 64
MAX RH % (24HR TREND) 95 (+1) 100
20FT WIND AM (MPH) SW 6-8 LGT/VAR
20FT WIND PM (MPH) SW 6-8 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.10-0.25 1.00-1.50
11 AM MIXING HGT (FT) 4100 2000
MAX MIXING HGT (FT) 5300 3200
TRANSPORT WND (MPH) SW 11 SW 11
VENT RATE (MPH-FT) 63600 38400
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
70S. NORTH WINDS AROUND 5 MPH, BECOMING NORTHEAST IN THE
AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. PARTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS AROUND 70. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ012-042115-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY CLOUDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 70 80
MAX TEMP (24HR TREND) 84 (+2) 78
MIN RH % (24HR TREND) 54 (-1) 76
MIN TEMP (24HR TREND) 66 (+4) 62
MAX RH % (24HR TREND) 100 (+3) 100
20FT WIND AM (MPH) SW 7 LGT/VAR
20FT WIND PM (MPH) SW 7 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.05-0.10 0.25-0.50 1.00-1.50
11 AM MIXING HGT (FT) 3800 1800
MAX MIXING HGT (FT) 4800 2500
TRANSPORT WND (MPH) SW 11 SW 9
VENT RATE (MPH-FT) 57600 22500
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. A CHANCE OF SHOWERS. HIGHS IN THE UPPER 70S. NORTHEAST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. PARTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
80S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ005-042115-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY CLOUDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 80
MAX TEMP (24HR TREND) 84 (+3) 77
MIN RH % (24HR TREND) 56 (+2) 77
MIN TEMP (24HR TREND) 65 (+3) 60
MAX RH % (24HR TREND) 100 (+2) 100
20FT WIND AM (MPH) SW 7-8 LGT/VAR
20FT WIND PM (MPH) SW 7-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 16
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.25-0.50 0.50-0.75
11 AM MIXING HGT (FT) 4000 1600
MAX MIXING HGT (FT) 4900 2200
TRANSPORT WND (MPH) SW 12 SW 9
VENT RATE (MPH-FT) 63700 19800
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
70S. LIGHT WINDS, BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. PARTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. MOSTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
ILZ004-042115-
BOONE-
INCLUDING THE CITY OF BELVIDERE
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 10 70 70 70
MAX TEMP (24HR TREND) 84 (+2) 77
MIN RH % (24HR TREND) 57 (+5) 76
MIN TEMP (24HR TREND) 65 (+4) 59
MAX RH % (24HR TREND) 100 (0) 100
20FT WIND AM (MPH) SW 7-8 LGT/VAR
20FT WIND PM (MPH) SW 7-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 16
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.10-0.25 0.50-0.75
11 AM MIXING HGT (FT) 3800 1700
MAX MIXING HGT (FT) 4800 2200
TRANSPORT WND (MPH) SW 11 W 9
VENT RATE (MPH-FT) 57600 19800
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING EAST AROUND 5 MPH
IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. PARTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING NORTH AFTER MIDNIGHT.
ILZ011-042115-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY CLOUDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 80
MAX TEMP (24HR TREND) 84 (+3) 78
MIN RH % (24HR TREND) 56 (0) 74
MIN TEMP (24HR TREND) 65 (+3) 60
MAX RH % (24HR TREND) 100 (+2) 100
20FT WIND AM (MPH) SW 7 LGT/VAR
20FT WIND PM (MPH) SW 7 LGT/VAR W 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.25-0.50 1.00-1.50
11 AM MIXING HGT (FT) 3600 1700
MAX MIXING HGT (FT) 4700 2400
TRANSPORT WND (MPH) SW 11 SW 9
VENT RATE (MPH-FT) 56400 21600
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
70S. NORTHEAST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. PARTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 10 MPH.
ILZ003-042115-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 10 70 70 70
MAX TEMP (24HR TREND) 84 (+2) 76
MIN RH % (24HR TREND) 55 (+7) 75
MIN TEMP (24HR TREND) 64 (+3) 58
MAX RH % (24HR TREND) 100 (0) 100
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) 17
PRECIP AMOUNT (IN) 0.00 0.25-0.50 0.25-0.50 0.50-0.75
11 AM MIXING HGT (FT) 3900 1600
MAX MIXING HGT (FT) 5000 2200
TRANSPORT WND (MPH) SW 11 W 8
VENT RATE (MPH-FT) 60000 17600
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ008-042115-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 10 70 70 80
MAX TEMP (24HR TREND) 84 (+2) 76
MIN RH % (24HR TREND) 56 (+5) 78
MIN TEMP (24HR TREND) 65 (+4) 59
MAX RH % (24HR TREND) 100 (0) 100
20FT WIND AM (MPH) SW 7-8 LGT/VAR
20FT WIND PM (MPH) SW 7-8 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.25-0.50 0.25-0.50 0.50-0.75
11 AM MIXING HGT (FT) 3700 1600
MAX MIXING HGT (FT) 4700 2200
TRANSPORT WND (MPH) SW 11 W 9
VENT RATE (MPH-FT) 56400 19800
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
IN THE MID 80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ010-042115-
LEE-
INCLUDING THE CITY OF DIXON
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY MCLDY MCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 70 80
MAX TEMP (24HR TREND) 84 (+2) 77
MIN RH % (24HR TREND) 58 (+4) 75
MIN TEMP (24HR TREND) 66 (+5) 61
MAX RH % (24HR TREND) 100 (0) 100
20FT WIND AM (MPH) S 6 LGT/VAR
20FT WIND PM (MPH) SW 6 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.10-0.25 0.25-0.50 1.00-1.50
11 AM MIXING HGT (FT) 3700 1600
MAX MIXING HGT (FT) 4600 2300
TRANSPORT WND (MPH) SW 10 SW 9
VENT RATE (MPH-FT) 46000 20700
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 10 MPH.
ILZ019-042115-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 70 90
MAX TEMP (24HR TREND) 85 (+2) 82
MIN RH % (24HR TREND) 54 (-2) 69
MIN TEMP (24HR TREND) 67 (+4) 65
MAX RH % (24HR TREND) 94 (-2) 99
20FT WIND AM (MPH) S 5 LGT/VAR
20FT WIND PM (MPH) S 5 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.10-0.25 1.00-1.50
11 AM MIXING HGT (FT) 3600 1900
MAX MIXING HGT (FT) 5200 2900
TRANSPORT WND (MPH) S 9 SW 11
VENT RATE (MPH-FT) 46800 34800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS AROUND 80.
NORTHEAST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 10 MPH.
ILZ020-042115-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLDY CLOUDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 30 70 90
MAX TEMP (24HR TREND) 85 (+2) 80
MIN RH % (24HR TREND) 53 (-1) 72
MIN TEMP (24HR TREND) 67 (+4) 64
MAX RH % (24HR TREND) 96 (-1) 100
20FT WIND AM (MPH) S 5-7 LGT/VAR
20FT WIND PM (MPH) S 5-7 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.01-0.05 0.10-0.25 1.00-1.50
11 AM MIXING HGT (FT) 3600 1800
MAX MIXING HGT (FT) 4800 2900
TRANSPORT WND (MPH) S 10 SW 11
VENT RATE (MPH-FT) 48000 34800
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. A CHANCE OF SHOWERS. A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS AROUND 80. NORTHEAST WINDS AROUND 5 MPH,
BECOMING SOUTHEAST IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. PARTLY
CLOUDY WITH A CHANCE OF SHOWERS. LOWS AROUND 70. SOUTH WINDS 5 TO
10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS AROUND 70. SOUTHWEST WINDS AROUND 10 MPH,
BECOMING NORTH AFTER MIDNIGHT.
ILZ021-042115-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 10 60 90
MAX TEMP (24HR TREND) 85 (+2) 82
MIN RH % (24HR TREND) 53 (-4) 69
MIN TEMP (24HR TREND) 66 (+3) 66
MAX RH % (24HR TREND) 93 (-5) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) S 4-5 LGT/VAR SW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 1.00-1.50
11 AM MIXING HGT (FT) 3800 1800
MAX MIXING HGT (FT) 5200 3000
TRANSPORT WND (MPH) S 9 SW 11
VENT RATE (MPH-FT) 46800 36000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING NORTH AFTER MIDNIGHT.
ILZ022-042115-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER PCLDY PCLDY MCLDY CLOUDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 60 90
MAX TEMP (24HR TREND) 84 (+1) 81
MIN RH % (24HR TREND) 53 (-3) 69
MIN TEMP (24HR TREND) 64 (+2) 64
MAX RH % (24HR TREND) 96 (-1) 100
20FT WIND AM (MPH) S 5-6 LGT/VAR
20FT WIND PM (MPH) S 5-6 LGT/VAR SW 4-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 1.00-1.50
11 AM MIXING HGT (FT) 4000 1800
MAX MIXING HGT (FT) 5200 3100
TRANSPORT WND (MPH) SW 9 SW 11
VENT RATE (MPH-FT) 46800 37200
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE UPPER 70S. NORTHEAST WINDS AROUND 5 MPH, BECOMING SOUTH IN
THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 70. SOUTH WINDS 5 TO 10 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 10 MPH,
BECOMING NORTH AFTER MIDNIGHT.
ILZ032-042115-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 40 90
MAX TEMP (24HR TREND) 85 (+1) 83
MIN RH % (24HR TREND) 51 (-6) 68
MIN TEMP (24HR TREND) 64 (+2) 66
MAX RH % (24HR TREND) 95 (-4) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.50-0.75
11 AM MIXING HGT (FT) 3800 1800
MAX MIXING HGT (FT) 5200 3100
TRANSPORT WND (MPH) S 8 SW 11
VENT RATE (MPH-FT) 41600 37200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE LOWER 80S. SOUTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S. SOUTH WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE LOWER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ023-042115-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY CLOUDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 40 80
MAX TEMP (24HR TREND) 85 (+2) 83
MIN RH % (24HR TREND) 50 (-7) 63
MIN TEMP (24HR TREND) 62 (+1) 64
MAX RH % (24HR TREND) 99 (+2) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.50-0.75
11 AM MIXING HGT (FT) 4100 1800
MAX MIXING HGT (FT) 5200 3400
TRANSPORT WND (MPH) S 6 SW 12
VENT RATE (MPH-FT) 36400 44200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS
AROUND 80. LIGHT WINDS, BECOMING SOUTHWEST AROUND 5 MPH IN THE
AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
ILZ039-042115-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 80
MAX TEMP (24HR TREND) 85 (+2) 84
MIN RH % (24HR TREND) 50 (-9) 63
MIN TEMP (24HR TREND) 63 (+2) 66
MAX RH % (24HR TREND) 98 (0) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.25-0.50
11 AM MIXING HGT (FT) 3800 1700
MAX MIXING HGT (FT) 5200 3200
TRANSPORT WND (MPH) S 5 SW 12
VENT RATE (MPH-FT) 31200 41600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE LOWER 80S. SOUTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY 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
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS AROUND 70. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ033-042115-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 80
MAX TEMP (24HR TREND) 84 (+1) 84
MIN RH % (24HR TREND) 50 (-9) 61
MIN TEMP (24HR TREND) 62 (+1) 65
MAX RH % (24HR TREND) 98 (+2) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.25-0.50
11 AM MIXING HGT (FT) 3800 1700
MAX MIXING HGT (FT) 5100 3300
TRANSPORT WND (MPH) S 5 SW 11
VENT RATE (MPH-FT) 30600 39600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE LOWER 80S. LIGHT WINDS, BECOMING SOUTHWEST AROUND 5 MPH IN
THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS.
FRIDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
INZ010-042115-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 80
MAX TEMP (24HR TREND) 83 (+1) 83
MIN RH % (24HR TREND) 51 (-6) 63
MIN TEMP (24HR TREND) 61 (+1) 64
MAX RH % (24HR TREND) 99 (+1) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.25-0.50
11 AM MIXING HGT (FT) 4400 1700
MAX MIXING HGT (FT) 5200 3500
TRANSPORT WND (MPH) S 5 SW 11
VENT RATE (MPH-FT) 31200 42000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. LIGHT
WINDS, BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
INZ011-042115-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
349 AM CDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 20 80
MAX TEMP (24HR TREND) 83 (+2) 83
MIN RH % (24HR TREND) 50 (-6) 62
MIN TEMP (24HR TREND) 60 (+1) 64
MAX RH % (24HR TREND) 100 (+1) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.25-0.50
11 AM MIXING HGT (FT) 4400 2000
MAX MIXING HGT (FT) 5200 3700
TRANSPORT WND (MPH) S 5 SW 10
VENT RATE (MPH-FT) 31200 37000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 60S. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SHOWERS. LOWS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 5 MPH.
INZ019-042115-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
449 AM EDT TUE AUG 4 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLDY
PRECIP TYPE NONE NONE NONE TSTMS
CHANCE PRECIP (%) 20 70
MAX TEMP (24HR TREND) 82 (+1) 83
MIN RH % (24HR TREND) 51 (-7) 62
MIN TEMP (24HR TREND) 61 (+1) 65
MAX RH % (24HR TREND) 97 (0) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.10-0.25
11 AM MIXING HGT (FT) 4200 1800
MAX MIXING HGT (FT) 5000 3400
TRANSPORT WND (MPH) S 4 SW 9
VENT RATE (MPH-FT) 25000 30600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
SOUTH WINDS AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 60S. LIGHT WINDS.
FRIDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 70. SOUTH WINDS AROUND
5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 5 MPH.
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