955
FNUS53 KLOT 180904
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
404 AM CDT SAT JUL 18 2026
DISCUSSION
A COLD FRONT PASSING THROUGH THE AREA TODAY WILL TRIGGER
THUNDERSTORMS FOR THE LATE MORNING AND AFTERNOON. SOME STORMS MAY
BE STRONG TO SEVERE FEATURING DAMAGING WIND GUSTS AND VERY HEAVY
RAINFALL. HIGHEST THUNDERSTORM COVERAGE IS EXPECTED NEAR AND SOUTH
OF I-80 WHILE AREAS NORTH OF I-90 MAY REMAIN LARGELY DRY.
HIGH TEMPERATURES WILL CLIMB INTO THE UPPER 80S AND LOWER 90S
TODAY. THE HEAT INDEX WILL PEAK AROUND OR JUST OVER 100 DEGREES
NEAR AND SOUTH OF I-80 AND IN THE UPPER 90S FARTHER NORTH.
NO RAIN IS EXPECTED FOR SUNDAY WITH TEMPERATURES FORECAST IN THE
LOWER AND MIDDLE 80S. ANOTHER PLUME OF WILDFIRE SMOKE WILL MOVE
OVER THE REGION LATE TONIGHT WHICH COULD BRING HAZY SKIES AND
IMPACTED AIR QUALITY TO SUNDAY.
ILZ014-182130-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50
MAX TEMP (24HR TREND) 90 (0) 81
MIN RH % (24HR TREND) 57 (+3) 50
MIN TEMP (24HR TREND) 65 (-11) 64
MAX RH % (24HR TREND) 91 (+5) 94
20FT WIND AM (MPH) W 10-11 E 5-6
20FT WIND PM (MPH) N 10-11 NE 5-8 NE 5-6 LGT/VAR
PEAK WIND GUSTS (MPH) 21 16
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3600 3600
MAX MIXING HGT (FT) 4300 4900
TRANSPORT WND (MPH) N 13 NE 6
VENT RATE (MPH-FT) 60200 34300
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING. MOSTLY
CLOUDY WITH SHOWERS LIKELY. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS 10 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 60S. NORTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ006-182130-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 88 (-2) 81
MIN RH % (24HR TREND) 54 (-2) 52
MIN TEMP (24HR TREND) 62 (-13) 62
MAX RH % (24HR TREND) 96 (+11) 96
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) N 10 LGT/VAR E 4-6 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3400 3600
MAX MIXING HGT (FT) 5400 4500
TRANSPORT WND (MPH) N 13 E 6
VENT RATE (MPH-FT) 75600 31500
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 80S. SOUTHWEST WINDS 10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. SHOWERS
LIKELY. LOWS IN THE UPPER 60S. SOUTHWEST WINDS 10 TO 15 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 80S. NORTHWEST WINDS AROUND
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ001-182130-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 60
MAX TEMP (24HR TREND) 90 (0) 81
MIN RH % (24HR TREND) 60 (+4) 58
MIN TEMP (24HR TREND) 63 (-10) 61
MAX RH % (24HR TREND) 99 (+5) 100
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) NW 10 LGT/VAR NE 4-5 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.25-0.50 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3200 3100
MAX MIXING HGT (FT) 4500 4500
TRANSPORT WND (MPH) W 20 NE 6
VENT RATE (MPH-FT) 94500 31500
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS AROUND
10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. 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. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ002-182130-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 70
MAX TEMP (24HR TREND) 89 (0) 80
MIN RH % (24HR TREND) 62 (+1) 59
MIN TEMP (24HR TREND) 62 (-11) 61
MAX RH % (24HR TREND) 100 (+5) 100
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) NW 9-10 LGT/VAR NE 4-5 LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.50-0.75 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3100 3000
MAX MIXING HGT (FT) 4500 4400
TRANSPORT WND (MPH) W 20 NE 6
VENT RATE (MPH-FT) 94500 30800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS
AROUND 10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. SOUTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ013-182130-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40
MAX TEMP (24HR TREND) 89 (-1) 82
MIN RH % (24HR TREND) 58 (+3) 49
MIN TEMP (24HR TREND) 65 (-10) 64
MAX RH % (24HR TREND) 91 (+3) 96
20FT WIND AM (MPH) W 10-11 NE 5-6
20FT WIND PM (MPH) NW 10-11 NE 5-7 E 5-6 LGT/VAR
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3300 3800
MAX MIXING HGT (FT) 4600 5500
TRANSPORT WND (MPH) N 13 E 6
VENT RATE (MPH-FT) 64400 38500
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH, INCREASING TO SOUTHWEST AROUND 15 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS AROUND 70. SOUTHWEST WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ012-182130-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 88 (-1) 82
MIN RH % (24HR TREND) 59 (-2) 52
MIN TEMP (24HR TREND) 64 (-9) 62
MAX RH % (24HR TREND) 93 (+1) 100
20FT WIND AM (MPH) W 10-11 LGT/VAR
20FT WIND PM (MPH) NW 10-11 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.05-0.10 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3000 3300
MAX MIXING HGT (FT) 4700 5200
TRANSPORT WND (MPH) NW 16 E 5
VENT RATE (MPH-FT) 75200 31200
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 80S. SOUTH WINDS AROUND 5 MPH, INCREASING TO
AROUND 15 MPH IN THE AFTERNOON.
MONDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN PARTLY CLOUDY WITH SHOWERS LIKELY AFTER MIDNIGHT.
LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ005-182130-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 88 (-1) 82
MIN RH % (24HR TREND) 52 (-8) 50
MIN TEMP (24HR TREND) 62 (-11) 62
MAX RH % (24HR TREND) 96 (+4) 97
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) N 9-10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3100 3400
MAX MIXING HGT (FT) 5200 5000
TRANSPORT WND (MPH) N 14 E 5
VENT RATE (MPH-FT) 78000 30000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
80S. SOUTH WINDS AROUND 5 MPH, INCREASING TO SOUTHWEST AROUND
15 MPH IN THE AFTERNOON.
MONDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN PARTLY CLOUDY WITH SHOWERS LIKELY AFTER MIDNIGHT.
LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 10 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
WEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ004-182130-
BOONE-
INCLUDING THE CITY OF BELVIDERE
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20 10
MAX TEMP (24HR TREND) 88 (-2) 82
MIN RH % (24HR TREND) 50 (-6) 48
MIN TEMP (24HR TREND) 62 (-11) 62
MAX RH % (24HR TREND) 92 (-3) 98
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) N 9-10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3100 2700
MAX MIXING HGT (FT) 5100 5000
TRANSPORT WND (MPH) N 14 E 5
VENT RATE (MPH-FT) 76500 30000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. SOUTHWEST
WINDS 10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. SHOWERS
LIKELY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ011-182130-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 89 (0) 82
MIN RH % (24HR TREND) 55 (-4) 51
MIN TEMP (24HR TREND) 63 (-10) 62
MAX RH % (24HR TREND) 91 (-1) 99
20FT WIND AM (MPH) W 10-11 LGT/VAR
20FT WIND PM (MPH) NW 10-11 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3000 2700
MAX MIXING HGT (FT) 4700 5000
TRANSPORT WND (MPH) NW 16 E 5
VENT RATE (MPH-FT) 75200 30000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. LOWS
AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS
AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ003-182130-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 89 (-3) 83
MIN RH % (24HR TREND) 46 (-7) 45
MIN TEMP (24HR TREND) 62 (-12) 62
MAX RH % (24HR TREND) 93 (+1) 96
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) NW 9-10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.00 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3200 3100
MAX MIXING HGT (FT) 5600 5200
TRANSPORT WND (MPH) N 14 E 5
VENT RATE (MPH-FT) 84000 31200
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. SOUTH WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. SHOWERS
LIKELY. LOWS IN THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ008-182130-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 89 (-1) 83
MIN RH % (24HR TREND) 50 (-7) 48
MIN TEMP (24HR TREND) 63 (-10) 63
MAX RH % (24HR TREND) 91 (-5) 99
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) NW 10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3200 2500
MAX MIXING HGT (FT) 5200 4800
TRANSPORT WND (MPH) N 14 E 5
VENT RATE (MPH-FT) 78000 28800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S. SOUTH WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. LOWS
AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS AROUND
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ010-182130-
LEE-
INCLUDING THE CITY OF DIXON
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY CLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 90 (0) 83
MIN RH % (24HR TREND) 55 (-1) 50
MIN TEMP (24HR TREND) 64 (-9) 63
MAX RH % (24HR TREND) 91 (-4) 99
20FT WIND AM (MPH) W 10-11 LGT/VAR
20FT WIND PM (MPH) NW 10-11 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 2400
MAX MIXING HGT (FT) 4700 4400
TRANSPORT WND (MPH) NW 16 E 5
VENT RATE (MPH-FT) 75200 26400
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS. LOWS
AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 80S. NORTHWEST WINDS 10 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 50S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ019-182130-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50 20
MAX TEMP (24HR TREND) 91 (0) 83
MIN RH % (24HR TREND) 59 (+1) 51
MIN TEMP (24HR TREND) 65 (-8) 64
MAX RH % (24HR TREND) 89 (-1) 97
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) NW 10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3000 2400
MAX MIXING HGT (FT) 4500 4300
TRANSPORT WND (MPH) W 19 E 5
VENT RATE (MPH-FT) 90000 25800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. SHOWERS LIKELY. THUNDERSTORMS LIKELY, MAINLY IN
THE EVENING. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS 10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ020-182130-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 50
MAX TEMP (24HR TREND) 90 (0) 83
MIN RH % (24HR TREND) 63 (+3) 54
MIN TEMP (24HR TREND) 65 (-8) 63
MAX RH % (24HR TREND) 92 (0) 100
20FT WIND AM (MPH) W 10-11 LGT/VAR
20FT WIND PM (MPH) NW 10-11 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.10-0.25 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2800 3100
MAX MIXING HGT (FT) 4200 4800
TRANSPORT WND (MPH) NW 14 E 5
VENT RATE (MPH-FT) 63000 28800
VENT RATE CATEGORY FAIR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. SHOWERS LIKELY. THUNDERSTORMS LIKELY, MAINLY IN
THE EVENING. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ021-182130-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 60 20
MAX TEMP (24HR TREND) 91 (+1) 83
MIN RH % (24HR TREND) 61 (0) 56
MIN TEMP (24HR TREND) 66 (-8) 64
MAX RH % (24HR TREND) 93 (+2) 100
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) NW 9-10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.25-0.50 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2800 2800
MAX MIXING HGT (FT) 4400 4600
TRANSPORT WND (MPH) W 20 E 5
VENT RATE (MPH-FT) 92400 27600
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. SHOWERS LIKELY. THUNDERSTORMS LIKELY, MAINLY IN
THE EVENING. LOWS IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS 10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE LOWER 60S.
NORTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
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 MID 60S. LIGHT WINDS.
ILZ022-182130-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 60 10
MAX TEMP (24HR TREND) 90 (0) 82
MIN RH % (24HR TREND) 62 (+4) 53
MIN TEMP (24HR TREND) 64 (-9) 62
MAX RH % (24HR TREND) 97 (+3) 100
20FT WIND AM (MPH) W 10-11 LGT/VAR
20FT WIND PM (MPH) NW 10-11 LGT/VAR E 4-5 LGT/VAR
PEAK WIND GUSTS (MPH) 21
PRECIP AMOUNT (IN) 0.25-0.50 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3300
MAX MIXING HGT (FT) 4000 4800
TRANSPORT WND (MPH) W 20 E 5
VENT RATE (MPH-FT) 84000 28800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS 10 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ032-182130-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 30
MAX TEMP (24HR TREND) 92 (+2) 82
MIN RH % (24HR TREND) 60 (-2) 59
MIN TEMP (24HR TREND) 66 (-7) 63
MAX RH % (24HR TREND) 96 (+4) 100
20FT WIND AM (MPH) W 9 LGT/VAR
20FT WIND PM (MPH) W 9 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.10-0.25 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2900 2400
MAX MIXING HGT (FT) 4700 4100
TRANSPORT WND (MPH) W 20 E 6
VENT RATE (MPH-FT) 98700 28700
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTH WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH SHOWERS AND
THUNDERSTORMS LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 80S. WEST WINDS AROUND 10 MPH,
BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE LOWER 60S.
NORTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ023-182130-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 70 20
MAX TEMP (24HR TREND) 91 (+2) 82
MIN RH % (24HR TREND) 60 (0) 56
MIN TEMP (24HR TREND) 63 (-10) 61
MAX RH % (24HR TREND) 98 (+2) 100
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) NW 10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.25-0.50 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3100 2800
MAX MIXING HGT (FT) 4600 4300
TRANSPORT WND (MPH) W 21 NE 6
VENT RATE (MPH-FT) 101200 30100
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS 10 TO
15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS.
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
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ039-182130-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 40
MAX TEMP (24HR TREND) 91 (+1) 82
MIN RH % (24HR TREND) 60 (-5) 60
MIN TEMP (24HR TREND) 65 (-8) 63
MAX RH % (24HR TREND) 96 (+3) 100
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) W 10 LGT/VAR NE 4-5 LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.10-0.25 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3200 2200
MAX MIXING HGT (FT) 4800 3900
TRANSPORT WND (MPH) W 20 NE 6
VENT RATE (MPH-FT) 100800 27300
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH SHOWERS AND
THUNDERSTORMS LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH
WINDS AROUND 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND
10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ033-182130-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 30
MAX TEMP (24HR TREND) 91 (+1) 82
MIN RH % (24HR TREND) 59 (-7) 55
MIN TEMP (24HR TREND) 64 (-9) 62
MAX RH % (24HR TREND) 96 (+1) 100
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) W 10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 3100 2600
MAX MIXING HGT (FT) 4700 4100
TRANSPORT WND (MPH) W 21 NE 6
VENT RATE (MPH-FT) 103400 28700
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SHOWERS AND THUNDERSTORMS
LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER 70S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. COOLER. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS AROUND 80. LIGHT WINDS.
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
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ010-182130-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 70 20
MAX TEMP (24HR TREND) 90 (+1) 82
MIN RH % (24HR TREND) 61 (+3) 56
MIN TEMP (24HR TREND) 63 (-9) 61
MAX RH % (24HR TREND) 98 (0) 100
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) NW 10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.25-0.50 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3200 2800
MAX MIXING HGT (FT) 4800 4300
TRANSPORT WND (MPH) W 21 NE 6
VENT RATE (MPH-FT) 105600 30100
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE MORNING. HIGHS IN THE MID 80S. WEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ011-182130-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
404 AM CDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 70 20
MAX TEMP (24HR TREND) 90 (+2) 81
MIN RH % (24HR TREND) 62 (+1) 58
MIN TEMP (24HR TREND) 62 (-10) 61
MAX RH % (24HR TREND) 99 (0) 100
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) NW 10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 20
PRECIP AMOUNT (IN) 0.25-0.50 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3200 2900
MAX MIXING HGT (FT) 4800 4400
TRANSPORT WND (MPH) W 21 NE 6
VENT RATE (MPH-FT) 105600 30800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT. LOWS AROUND 70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE MORNING. HIGHS IN THE MID 80S. WEST WINDS 10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ019-182130-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
504 AM EDT SAT JUL 18 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER PCLDY MCLEAR MCLEAR CLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 30
MAX TEMP (24HR TREND) 89 (+1) 81
MIN RH % (24HR TREND) 62 (-6) 58
MIN TEMP (24HR TREND) 63 (-9) 62
MAX RH % (24HR TREND) 97 (-1) 99
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) W 10 LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH) 19
PRECIP AMOUNT (IN) 0.10-0.25 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3100 2500
MAX MIXING HGT (FT) 4800 4100
TRANSPORT WND (MPH) W 20 NE 6
VENT RATE (MPH-FT) 100800 28700
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 80S. SOUTH WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SHOWERS AND THUNDERSTORMS
LIKELY AFTER MIDNIGHT. LOWS AROUND 70. SOUTH WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 80S. SOUTHWEST WINDS AROUND
10 MPH, BECOMING WEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
SOUTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
DOOM
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