929
FNUS53 KLOT 200922
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
422 AM CDT SAT JUN 20 2026
DISCUSSION
MILD TEMPERATURES WITH HIGHS LARGELY IN THE MID-UPPER 70S ARE EXPECTED
ONCE AGAIN TODAY, THOUGH LIKE YESTERDAY, SLIGHTLY COOLER TEMPERATURES
AND SUPPRESSED MIXING HEIGHTS WILL BE OBSERVED THIS AFTERNOON IN SOME
AREAS NEAR THE LAKESHORE BEHIND A LAKE BREEZE. NEAR TO BELOW NORMAL
TEMPERATURES WILL THEN PERSIST THROUGH NEXT WEEK.
A WIDESPREAD SOAKING RAINFALL IS LIKELY ON SUNDAY. SOME POTENTIAL FOR
THUNDERSTORMS ALSO EXISTS SOUTH OF I-80. PERIODIC SHOWER AND STORM
CHANCES ARE THEN FORECASTED FROM TUESDAY NIGHT THROUGH THE END OF THE
WEEK.
ILZ014-202115-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 80 80
MAX TEMP (24HR TREND) 78 (+2) 72
MIN RH % (24HR TREND) 39 (+1) 61
MIN TEMP (24HR TREND) 58 (-2) 56
MAX RH % (24HR TREND) 85 (+2) 99
20FT WIND AM (MPH) W 9-10 E 0-5
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 6-11 NE 10-15
PEAK WIND GUSTS (MPH) 19 25 28
PRECIP AMOUNT (IN) 0.00 0.00 0.50-0.75 0.50-0.75
11 AM MIXING HGT (FT) 4600 3200
MAX MIXING HGT (FT) 7300 3200
TRANSPORT WND (MPH) W 17 SE 9
VENT RATE (MPH-FT) 124100 28800
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 50S. WEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. WEST WINDS AROUND 5 MPH, BECOMING NORTH IN
THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ006-202115-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 60 70
MAX TEMP (24HR TREND) 77 (+1) 71
MIN RH % (24HR TREND) 43 (+4) 63
MIN TEMP (24HR TREND) 55 (-3) 54
MAX RH % (24HR TREND) 94 (+9) 100
20FT WIND AM (MPH) W 10 LGT/VAR
20FT WIND PM (MPH) NW 10 LGT/VAR E 5-10 NE 11-12
PEAK WIND GUSTS (MPH) 19 21 24
PRECIP AMOUNT (IN) 0.00 0.00 0.50-0.75 0.25-0.50
11 AM MIXING HGT (FT) 4300 3300
MAX MIXING HGT (FT) 6600 3300
TRANSPORT WND (MPH) W 17 SE 8
VENT RATE (MPH-FT) 112200 26400
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS AROUND 70. NORTH WINDS 10 TO
15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 50S. SOUTHWEST WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND 5 MPH, BECOMING
NORTH IN THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
INZ001-202115-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 10 80 90
MAX TEMP (24HR TREND) 78 (+3) 72
MIN RH % (24HR TREND) 42 (-1) 65
MIN TEMP (24HR TREND) 58 (-2) 57
MAX RH % (24HR TREND) 87 (0) 100
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 4-9 NE 10-15
PEAK WIND GUSTS (MPH) 20 24 26
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.75-1.00
11 AM MIXING HGT (FT) 4500 2700
MAX MIXING HGT (FT) 7000 2700
TRANSPORT WND (MPH) NW 17 SE 9
VENT RATE (MPH-FT) 119000 24300
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. HIGHS AROUND 70. NORTH WINDS 10 TO
15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 50S. WEST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. WEST WINDS AROUND 5 MPH, BECOMING NORTH IN
THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
INZ002-202115-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 80 90
MAX TEMP (24HR TREND) 78 (+4) 72
MIN RH % (24HR TREND) 43 (-3) 64
MIN TEMP (24HR TREND) 58 (-2) 58
MAX RH % (24HR TREND) 88 (+2) 100
20FT WIND AM (MPH) W 9 LGT/VAR
20FT WIND PM (MPH) NW 9 LGT/VAR E 4-9 E 10-15
PEAK WIND GUSTS (MPH) 20 21 23
PRECIP AMOUNT (IN) 0.00 0.00 0.50-0.75 0.75-1.00
11 AM MIXING HGT (FT) 4600 3000
MAX MIXING HGT (FT) 6700 3000
TRANSPORT WND (MPH) NW 16 SE 9
VENT RATE (MPH-FT) 107200 27000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. HIGHS AROUND 70. NORTH WINDS 10 TO
15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
IN THE UPPER 50S. SOUTHWEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. WEST WINDS AROUND 5 MPH, BECOMING NORTH IN
THE AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
ILZ013-202115-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 80 80
MAX TEMP (24HR TREND) 78 (+2) 72
MIN RH % (24HR TREND) 40 (+1) 62
MIN TEMP (24HR TREND) 59 (0) 56
MAX RH % (24HR TREND) 86 (+2) 99
20FT WIND AM (MPH) W 9-11 LGT/VAR
20FT WIND PM (MPH) NW 9-11 LGT/VAR E 5-10 NE 10-15
PEAK WIND GUSTS (MPH) 19 23 25
PRECIP AMOUNT (IN) 0.00 0.00 0.50-0.75 0.50-0.75
11 AM MIXING HGT (FT) 4300 3300
MAX MIXING HGT (FT) 6900 3400
TRANSPORT WND (MPH) W 18 SE 9
VENT RATE (MPH-FT) 124200 30600
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHEAST WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 50S. NORTHWEST WINDS AROUND 5 MPH,
BECOMING WEST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. NORTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ012-202115-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 80 70
MAX TEMP (24HR TREND) 78 (+3) 71
MIN RH % (24HR TREND) 44 (+2) 65
MIN TEMP (24HR TREND) 57 (0) 55
MAX RH % (24HR TREND) 89 (+1) 99
20FT WIND AM (MPH) W 10-11 LGT/VAR
20FT WIND PM (MPH) NW 10-11 LGT/VAR E 7-12 NE 10-15
PEAK WIND GUSTS (MPH) 19 23 25
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.25-0.50
11 AM MIXING HGT (FT) 4000 2900
MAX MIXING HGT (FT) 6500 2900
TRANSPORT WND (MPH) W 18 SE 10
VENT RATE (MPH-FT) 117000 29000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 50S. EAST WINDS AROUND 5 MPH, BECOMING
SOUTH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ005-202115-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 70 70
MAX TEMP (24HR TREND) 77 (+2) 71
MIN RH % (24HR TREND) 45 (+6) 64
MIN TEMP (24HR TREND) 55 (-1) 54
MAX RH % (24HR TREND) 93 (+3) 98
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 5-10 NE 10-12
PEAK WIND GUSTS (MPH) 19 21 21
PRECIP AMOUNT (IN) 0.00 0.00 0.50-0.75 0.25-0.50
11 AM MIXING HGT (FT) 4000 3000
MAX MIXING HGT (FT) 6200 3200
TRANSPORT WND (MPH) NW 18 SE 11
VENT RATE (MPH-FT) 111600 38400
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHEAST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
ILZ004-202115-
BOONE-
INCLUDING THE CITY OF BELVIDERE
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60
MAX TEMP (24HR TREND) 77 (+2) 71
MIN RH % (24HR TREND) 43 (+5) 59
MIN TEMP (24HR TREND) 55 (-1) 54
MAX RH % (24HR TREND) 91 (+1) 97
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 5-10 NE 10-15
PEAK WIND GUSTS (MPH) 18 21 21
PRECIP AMOUNT (IN) 0.00 0.00 0.50-0.75 0.25-0.50
11 AM MIXING HGT (FT) 4100 2900
MAX MIXING HGT (FT) 6700 3100
TRANSPORT WND (MPH) NW 18 SE 10
VENT RATE (MPH-FT) 120600 31000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
ILZ011-202115-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 80 70
MAX TEMP (24HR TREND) 78 (+3) 70
MIN RH % (24HR TREND) 43 (0) 63
MIN TEMP (24HR TREND) 56 (-1) 54
MAX RH % (24HR TREND) 88 (-2) 97
20FT WIND AM (MPH) W 10-11 E 0-5
20FT WIND PM (MPH) NW 10-11 LGT/VAR E 7-12 NE 10-15
PEAK WIND GUSTS (MPH) 19 25 26
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.25-0.50
11 AM MIXING HGT (FT) 3900 2500
MAX MIXING HGT (FT) 6500 2600
TRANSPORT WND (MPH) NW 17 SE 11
VENT RATE (MPH-FT) 110500 31200
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 50S. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ003-202115-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60
MAX TEMP (24HR TREND) 77 (+2) 71
MIN RH % (24HR TREND) 42 (+3) 58
MIN TEMP (24HR TREND) 55 (-1) 53
MAX RH % (24HR TREND) 91 (+2) 96
20FT WIND AM (MPH) W 9-10 LGT/VAR
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 5-10 NE 10-12
PEAK WIND GUSTS (MPH) 18 21 23
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.10-0.25
11 AM MIXING HGT (FT) 4100 2900
MAX MIXING HGT (FT) 7000 3100
TRANSPORT WND (MPH) NW 16 SE 11
VENT RATE (MPH-FT) 112000 37200
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING WEST AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID 50S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
ILZ008-202115-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY CLOUDY MCLDY
PRECIP TYPE NONE NONE SHOWERS SHOWERS
CHANCE PRECIP (%) 10 80 60
MAX TEMP (24HR TREND) 78 (+2) 70
MIN RH % (24HR TREND) 42 (-1) 61
MIN TEMP (24HR TREND) 56 (0) 54
MAX RH % (24HR TREND) 89 (-5) 97
20FT WIND AM (MPH) W 9-10 E 0-5
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 7-12 NE 10-15
PEAK WIND GUSTS (MPH) 18 23 24
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.25-0.50
11 AM MIXING HGT (FT) 3900 2400
MAX MIXING HGT (FT) 6700 2700
TRANSPORT WND (MPH) NW 17 SE 12
VENT RATE (MPH-FT) 113900 35100
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING WEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE UPPER 50S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
ILZ010-202115-
LEE-
INCLUDING THE CITY OF DIXON
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY CLOUDY MCLDY
PRECIP TYPE NONE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 10 80 70
MAX TEMP (24HR TREND) 78 (+2) 69
MIN RH % (24HR TREND) 42 (-2) 64
MIN TEMP (24HR TREND) 57 (+1) 54
MAX RH % (24HR TREND) 87 (-10) 98
20FT WIND AM (MPH) W 8-10 E 10-15
20FT WIND PM (MPH) NW 8-10 LGT/VAR E 10-15 NE 10-15
PEAK WIND GUSTS (MPH) 19 25 26
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.25-0.50
11 AM MIXING HGT (FT) 3600 1600
MAX MIXING HGT (FT) 6600 2000
TRANSPORT WND (MPH) W 16 E 18
VENT RATE (MPH-FT) 105600 36000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 5 MPH,
BECOMING SOUTH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTH
WINDS AROUND 5 MPH, BECOMING WEST IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS AROUND 5 MPH.
ILZ019-202115-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY CLOUDY MCLDY
PRECIP TYPE NONE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 10 10 90 70
MAX TEMP (24HR TREND) 78 (+1) 70
MIN RH % (24HR TREND) 42 (-3) 65
MIN TEMP (24HR TREND) 58 (-1) 57
MAX RH % (24HR TREND) 84 (-7) 95
20FT WIND AM (MPH) W 8-9 E 10-15
20FT WIND PM (MPH) NW 8-9 LGT/VAR E 10-15 NE 10-15
PEAK WIND GUSTS (MPH) 19 26 26
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.50-0.75
11 AM MIXING HGT (FT) 3800 1500
MAX MIXING HGT (FT) 6400 1800
TRANSPORT WND (MPH) W 18 E 14
VENT RATE (MPH-FT) 115200 27000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS 10 TO
15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
ILZ020-202115-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 10 10 80 80
MAX TEMP (24HR TREND) 78 (+2) 71
MIN RH % (24HR TREND) 44 (+2) 67
MIN TEMP (24HR TREND) 58 (0) 57
MAX RH % (24HR TREND) 88 (-2) 99
20FT WIND AM (MPH) W 9-10 E 0-5
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 7-12 NE 10-15
PEAK WIND GUSTS (MPH) 19 24 25
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.50-0.75
11 AM MIXING HGT (FT) 3900 2100
MAX MIXING HGT (FT) 6500 2200
TRANSPORT WND (MPH) W 18 SE 10
VENT RATE (MPH-FT) 117000 22000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 50S. NORTH WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ021-202115-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY CLOUDY MCLDY
PRECIP TYPE NONE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 10 10 90 80
MAX TEMP (24HR TREND) 79 (+2) 71
MIN RH % (24HR TREND) 44 (0) 70
MIN TEMP (24HR TREND) 59 (-1) 58
MAX RH % (24HR TREND) 89 (0) 99
20FT WIND AM (MPH) W 8-9 E 0-5
20FT WIND PM (MPH) NW 8-9 LGT/VAR E 7-12 NE 10-15
PEAK WIND GUSTS (MPH) 19 24 25
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.50-0.75
11 AM MIXING HGT (FT) 3700 1500
MAX MIXING HGT (FT) 6400 1800
TRANSPORT WND (MPH) W 19 E 10
VENT RATE (MPH-FT) 128000 18000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 50S. WEST WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTHEAST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
ILZ022-202115-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS SHOWERS
CHANCE PRECIP (%) 10 10 80 80
MAX TEMP (24HR TREND) 78 (+2) 72
MIN RH % (24HR TREND) 43 (+1) 66
MIN TEMP (24HR TREND) 58 (-1) 57
MAX RH % (24HR TREND) 89 (0) 100
20FT WIND AM (MPH) W 9-10 E 0-5
20FT WIND PM (MPH) NW 9-10 LGT/VAR E 6-11 NE 10-15
PEAK WIND GUSTS (MPH) 20 24 25
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.75-1.00
11 AM MIXING HGT (FT) 4000 2300
MAX MIXING HGT (FT) 6700 2500
TRANSPORT WND (MPH) W 19 SE 10
VENT RATE (MPH-FT) 134000 25000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHEAST WINDS
10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 50S. WEST WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
ILZ032-202115-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY CLOUDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 10 90 80
MAX TEMP (24HR TREND) 80 (+3) 71
MIN RH % (24HR TREND) 43 (-3) 71
MIN TEMP (24HR TREND) 59 (-2) 58
MAX RH % (24HR TREND) 87 (-1) 99
20FT WIND AM (MPH) W 7-8 SE 1-6
20FT WIND PM (MPH) NW 7-8 LGT/VAR E 7-12 NE 10-15
PEAK WIND GUSTS (MPH) 18 24 25
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.50-0.75
11 AM MIXING HGT (FT) 3700 1500
MAX MIXING HGT (FT) 6200 1600
TRANSPORT WND (MPH) W 18 SE 14
VENT RATE (MPH-FT) 111600 24000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
WEDNESDAY
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
ILZ023-202115-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 10 90 80
MAX TEMP (24HR TREND) 79 (+3) 72
MIN RH % (24HR TREND) 42 (-2) 64
MIN TEMP (24HR TREND) 57 (-3) 57
MAX RH % (24HR TREND) 88 (0) 100
20FT WIND AM (MPH) W 8-10 LGT/VAR
20FT WIND PM (MPH) NW 8-10 LGT/VAR E 5-10 NE 10-15
PEAK WIND GUSTS (MPH) 20 21 23
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.75-1.00
11 AM MIXING HGT (FT) 3900 2000
MAX MIXING HGT (FT) 6400 2100
TRANSPORT WND (MPH) W 20 SE 12
VENT RATE (MPH-FT) 134400 27300
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
ILZ039-202115-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 20 10 100 90
MAX TEMP (24HR TREND) 79 (+2) 71
MIN RH % (24HR TREND) 43 (-5) 68
MIN TEMP (24HR TREND) 59 (-2) 58
MAX RH % (24HR TREND) 85 (-2) 100
20FT WIND AM (MPH) W 6-9 SE 10-15
20FT WIND PM (MPH) NW 6-9 LGT/VAR E 10-15 E 10-15
PEAK WIND GUSTS (MPH) 18 24 23
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.75-1.00
11 AM MIXING HGT (FT) 3500 1400
MAX MIXING HGT (FT) 6500 1800
TRANSPORT WND (MPH) W 18 SE 14
VENT RATE (MPH-FT) 117000 27000
VENT RATE CATEGORY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS 10 TO
15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
WEDNESDAY
SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS
AROUND 5 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
ILZ033-202115-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 10 90 90
MAX TEMP (24HR TREND) 79 (+2) 72
MIN RH % (24HR TREND) 42 (-6) 64
MIN TEMP (24HR TREND) 58 (-3) 58
MAX RH % (24HR TREND) 84 (-1) 99
20FT WIND AM (MPH) W 7-9 LGT/VAR
20FT WIND PM (MPH) NW 7-9 LGT/VAR E 5-10 E 10-11
PEAK WIND GUSTS (MPH) 19 21 21
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.75-1.00
11 AM MIXING HGT (FT) 4100 1600
MAX MIXING HGT (FT) 6400 2100
TRANSPORT WND (MPH) W 19 SE 12
VENT RATE (MPH-FT) 128000 27300
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE UPPER 70S. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS
AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
INZ010-202115-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 90 90
MAX TEMP (24HR TREND) 78 (+3) 73
MIN RH % (24HR TREND) 42 (-4) 63
MIN TEMP (24HR TREND) 58 (-2) 58
MAX RH % (24HR TREND) 85 (-4) 99
20FT WIND AM (MPH) W 8-9 LGT/VAR
20FT WIND PM (MPH) NW 8-9 LGT/VAR E 4-9 E 10-12
PEAK WIND GUSTS (MPH) 20 20 20
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 0.75-1.00
11 AM MIXING HGT (FT) 4300 2100
MAX MIXING HGT (FT) 6600 2600
TRANSPORT WND (MPH) W 19 SE 10
VENT RATE (MPH-FT) 132000 26000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE MID 70S. LIGHT WINDS, BECOMING
SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING WEST AROUND 5 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
INZ011-202115-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
422 AM CDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 80 90
MAX TEMP (24HR TREND) 78 (+3) 73
MIN RH % (24HR TREND) 42 (-3) 62
MIN TEMP (24HR TREND) 58 (-2) 58
MAX RH % (24HR TREND) 87 (-1) 100
20FT WIND AM (MPH) W 8-9 LGT/VAR
20FT WIND PM (MPH) W 8-9 LGT/VAR E 4-9 E 10-12
PEAK WIND GUSTS (MPH) 20 20 20
PRECIP AMOUNT (IN) 0.00 0.00 0.75-1.00 1.00-1.50
11 AM MIXING HGT (FT) 4500 2700
MAX MIXING HGT (FT) 6600 2700
TRANSPORT WND (MPH) W 20 SE 10
VENT RATE (MPH-FT) 138600 27000
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS, BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 70S. WEST WINDS AROUND 5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
INZ019-202115-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
522 AM EDT SAT JUN 20 2026
TODAY TONIGHT SUN SUN NIGHT
CLOUD COVER MCLEAR PCLDY MCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 20 10 90 100
MAX TEMP (24HR TREND) 78 (+2) 73
MIN RH % (24HR TREND) 44 (-5) 63
MIN TEMP (24HR TREND) 59 (-1) 59
MAX RH % (24HR TREND) 84 (-2) 97
20FT WIND AM (MPH) W 7-8 LGT/VAR
20FT WIND PM (MPH) NW 7-8 LGT/VAR E 4-9 E 10-12
PEAK WIND GUSTS (MPH) 19 20 21
PRECIP AMOUNT (IN) 0.00 0.00 1.00-1.50 0.75-1.00
11 AM MIXING HGT (FT) 4200 2100
MAX MIXING HGT (FT) 6400 2100
TRANSPORT WND (MPH) W 19 SE 9
VENT RATE (MPH-FT) 128000 18900
VENT RATE CATEGORY VERY GOOD POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH IN THE MORNING, BECOMING LIGHT.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
WEDNESDAY
SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS
IN THE MID 70S. LIGHT WINDS, BECOMING SOUTHWEST AROUND 5 MPH IN
THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. WEST WINDS AROUND
5 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND
5 MPH, BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
OGOREK
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