600
FNUS53 KLOT 152058
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
358 PM CDT WED APR 15 2026
DISCUSSION
ADDITIONAL ROUNDS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED
TONIGHT THROUGH THURSDAY MORNING. A BRIEF BREAK IN THE WET PATTERN
IS THEN EXPECTED LATE THURSDAY THROUGH AT LEAST MIDDAY FRIDAY,
BEFORE A COLD FRONT AND ASSOCIATED THUNDERSTORMS (SOME POTENTIALLY
SEVERE) SWEEPS ACROSS THE AREA FRIDAY EVENING INTO EARLY SATURDAY
MORNING.
COLDER WEATHER CONDITIONS ARE THEN IN STORE FOR THE REMAINDER OF
THE WEEKEND WITH OVERNIGHT LOWS IN THE LOW TO MID 30S SATURDAY
NIGHT AND SUNDAY NIGHT, INCLUDING THE POTENTIAL FOR FROST LATE
SUNDAY NIGHT INTO EARLY MONDAY MORNING. TEMPERATURES THEN
GRADUALLY WARM INTO THE 60S AND 70S AGAIN MID-WEEK, WITH MAINLY
DRY CONDITIONS.
ILZ014-160915-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 80 50 10 10
MAX TEMP (24HR TREND) 71 (0) 80
MIN RH % (24HR TREND) 62 (-9) 47
MIN TEMP (24HR TREND) 57 (-6) 48
MAX RH % (24HR TREND) 94 (+2) 93
20FT WIND AM (MPH) W 9 SE 10-15
20FT WIND PM (MPH) S 8-9 NW 9 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 23 18 24
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2800 2100
MAX MIXING HGT (FT) 3700 5000
TRANSPORT WND (MPH) NW 13 S 26
VENT RATE (MPH-FT) 51800 130000
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ006-160915-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 80 50 10
MAX TEMP (24HR TREND) 68 (-2) 76
MIN RH % (24HR TREND) 67 (-8) 53
MIN TEMP (24HR TREND) 54 (-5) 46
MAX RH % (24HR TREND) 100 (0) 97
20FT WIND AM (MPH) W 7-8 SE 10-15
20FT WIND PM (MPH) S 6-8 N 7-8 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 17 24
PRECIP AMOUNT (IN) 0.50-0.75 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2200 1800
MAX MIXING HGT (FT) 2900 4200
TRANSPORT WND (MPH) NW 12 S 26
VENT RATE (MPH-FT) 37700 109200
VENT RATE CATEGORY POOR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING.
SHOWERS. LOWS IN THE MID 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS AROUND 50. WEST WINDS AROUND 15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE MID 40S.
SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS AROUND 70. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST WINDS
AROUND 10 MPH.
INZ001-160915-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 50 10 10
MAX TEMP (24HR TREND) 72 (+1) 80
MIN RH % (24HR TREND) 64 (-11) 48
MIN TEMP (24HR TREND) 59 (-7) 48
MAX RH % (24HR TREND) 95 (+7) 97
20FT WIND AM (MPH) SW 9-10 SE 7-12
20FT WIND PM (MPH) S 9-10 NW 9-10 LGT/VAR S 7-12
PEAK WIND GUSTS (MPH) 20 18 20
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3100 2200
MAX MIXING HGT (FT) 3900 5300
TRANSPORT WND (MPH) W 19 S 25
VENT RATE (MPH-FT) 78000 132500
VENT RATE CATEGORY FAIR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS. SHOWERS. LOWS AROUND
50. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE LOWER
60S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS AROUND 60. NORTHEAST WINDS AROUND 5 MPH,
BECOMING SOUTHEAST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. SOUTHWEST WINDS
AROUND 10 MPH.
INZ002-160915-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 50 10 10
MAX TEMP (24HR TREND) 72 (+1) 79
MIN RH % (24HR TREND) 65 (-11) 48
MIN TEMP (24HR TREND) 58 (-8) 48
MAX RH % (24HR TREND) 94 (+9) 97
20FT WIND AM (MPH) SW 9-10 SE 6-11
20FT WIND PM (MPH) S 9-10 NW 9-10 LGT/VAR S 6-11
PEAK WIND GUSTS (MPH) 20 18 19
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3100 2200
MAX MIXING HGT (FT) 3900 5200
TRANSPORT WND (MPH) W 19 S 24
VENT RATE (MPH-FT) 78000 124800
VENT RATE CATEGORY FAIR GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS. SHOWERS. LOWS AROUND
50. SOUTH WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. A CHANCE OF SHOWERS. HIGHS IN THE LOWER 60S. WEST WINDS
AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE UPPER 30S.
WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. COOLER. HIGHS AROUND 50. NORTHWEST WINDS
AROUND 15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. SOUTHWEST WINDS
AROUND 10 MPH.
ILZ013-160915-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 80 50 10
MAX TEMP (24HR TREND) 71 (0) 80
MIN RH % (24HR TREND) 64 (-11) 47
MIN TEMP (24HR TREND) 59 (-4) 51
MAX RH % (24HR TREND) 95 (+1) 94
20FT WIND AM (MPH) W 9 SE 10-15
20FT WIND PM (MPH) S 7-9 NW 9 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 23 17 24
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2800 2000
MAX MIXING HGT (FT) 4100 4700
TRANSPORT WND (MPH) NW 16 S 28
VENT RATE (MPH-FT) 65600 136300
VENT RATE CATEGORY FAIR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS AROUND 60. SOUTHEAST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50. WEST WINDS AROUND
10 MPH.
ILZ012-160915-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 90 50 20
MAX TEMP (24HR TREND) 70 (0) 79
MIN RH % (24HR TREND) 64 (-15) 50
MIN TEMP (24HR TREND) 58 (-3) 50
MAX RH % (24HR TREND) 98 (+4) 96
20FT WIND AM (MPH) W 9-10 SE 10-15
20FT WIND PM (MPH) S 8-9 NW 9-10 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 21 17 25
PRECIP AMOUNT (IN) 0.25-0.50 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 2800 2000
MAX MIXING HGT (FT) 4200 4700
TRANSPORT WND (MPH) NW 17 S 31
VENT RATE (MPH-FT) 71400 145700
VENT RATE CATEGORY FAIR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING.
SHOWERS. LOWS IN THE MID 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 50S. WEST WINDS 15 TO 20 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS AROUND 60. SOUTHEAST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST WINDS
AROUND 10 MPH.
ILZ005-160915-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 90 50 20
MAX TEMP (24HR TREND) 68 (-2) 77
MIN RH % (24HR TREND) 68 (-10) 54
MIN TEMP (24HR TREND) 56 (-4) 49
MAX RH % (24HR TREND) 100 (+2) 97
20FT WIND AM (MPH) W 7-8 SE 10-15
20FT WIND PM (MPH) S 6-8 NW 7-8 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 17 15 25
PRECIP AMOUNT (IN) 0.50-0.75 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 2200 1900
MAX MIXING HGT (FT) 3500 4100
TRANSPORT WND (MPH) NW 11 S 32
VENT RATE (MPH-FT) 42000 131200
VENT RATE CATEGORY POOR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING.
SHOWERS. LOWS IN THE MID 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS AROUND 50. NORTHWEST WINDS AROUND 15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. PATCHY FROST IN THE MORNING. HIGHS IN THE UPPER
50S. SOUTHEAST WINDS 5 TO 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE MID 40S.
SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS AROUND 70. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. WEST WINDS
AROUND 10 MPH.
ILZ004-160915-
BOONE-
INCLUDING THE CITY OF BELVIDERE
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 90 50 30
MAX TEMP (24HR TREND) 69 (-1) 78
MIN RH % (24HR TREND) 62 (-16) 51
MIN TEMP (24HR TREND) 56 (-4) 50
MAX RH % (24HR TREND) 99 (+3) 96
20FT WIND AM (MPH) W 8 SE 10-15
20FT WIND PM (MPH) S 6-8 NW 8 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 15 15 25
PRECIP AMOUNT (IN) 0.75-1.00 0.05-0.10 0.00 0.01-0.05
11 AM MIXING HGT (FT) 2200 2000
MAX MIXING HGT (FT) 3800 4400
TRANSPORT WND (MPH) NW 11 S 33
VENT RATE (MPH-FT) 45600 145200
VENT RATE CATEGORY POOR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING.
SHOWERS. LOWS IN THE LOWER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS AROUND 50. NORTHWEST WINDS AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. PATCHY FROST IN THE MORNING. HIGHS IN THE UPPER
50S. SOUTHEAST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS AROUND 70. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. WEST WINDS
AROUND 10 MPH.
ILZ011-160915-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 90 40 20
MAX TEMP (24HR TREND) 70 (0) 80
MIN RH % (24HR TREND) 60 (-20) 48
MIN TEMP (24HR TREND) 58 (-2) 50
MAX RH % (24HR TREND) 97 (+4) 95
20FT WIND AM (MPH) W 9-10 SE 10-15
20FT WIND PM (MPH) S 8-9 NW 9-10 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 20 18 25
PRECIP AMOUNT (IN) 0.25-0.50 0.05-0.10 0.00 0.01-0.05
11 AM MIXING HGT (FT) 2700 2200
MAX MIXING HGT (FT) 4300 4600
TRANSPORT WND (MPH) NW 14 S 32
VENT RATE (MPH-FT) 64500 147200
VENT RATE CATEGORY FAIR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS IN THE EVENING.
SHOWERS. LOWS IN THE MID 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 50S. WEST WINDS 15 TO 20 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ003-160915-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 90 40 40
MAX TEMP (24HR TREND) 70 (0) 79
MIN RH % (24HR TREND) 58 (-18) 48
MIN TEMP (24HR TREND) 56 (-5) 51
MAX RH % (24HR TREND) 98 (0) 94
20FT WIND AM (MPH) W 7-8 SE 10-15
20FT WIND PM (MPH) S 6-7 NW 7-8 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 14 26
PRECIP AMOUNT (IN) 1.00-1.50 0.05-0.10 0.00 0.05-0.10
11 AM MIXING HGT (FT) 2500 2100
MAX MIXING HGT (FT) 4100 4500
TRANSPORT WND (MPH) NW 10 S 34
VENT RATE (MPH-FT) 41000 157500
VENT RATE CATEGORY POOR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER
40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. PATCHY FROST IN THE MORNING. HIGHS AROUND 60.
SOUTHEAST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST WINDS
AROUND 10 MPH.
ILZ008-160915-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 80 30 40
MAX TEMP (24HR TREND) 71 (+1) 80
MIN RH % (24HR TREND) 57 (-20) 47
MIN TEMP (24HR TREND) 56 (-5) 51
MAX RH % (24HR TREND) 97 (+2) 94
20FT WIND AM (MPH) W 8-9 SE 10-15
20FT WIND PM (MPH) S 7-8 NW 8-9 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 16 17 26
PRECIP AMOUNT (IN) 0.50-0.75 0.01-0.05 0.00 0.05-0.10
11 AM MIXING HGT (FT) 2500 2200
MAX MIXING HGT (FT) 4500 4500
TRANSPORT WND (MPH) NW 11 S 34
VENT RATE (MPH-FT) 54000 157500
VENT RATE CATEGORY FAIR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER
40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTH WINDS AROUND 5 MPH.
MONDAY
SUNNY. PATCHY FROST IN THE MORNING. HIGHS IN THE LOWER
60S. SOUTHEAST WINDS AROUND 10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ010-160915-
LEE-
INCLUDING THE CITY OF DIXON
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 80 30 40
MAX TEMP (24HR TREND) 72 (+1) 80
MIN RH % (24HR TREND) 57 (-20) 47
MIN TEMP (24HR TREND) 57 (-3) 52
MAX RH % (24HR TREND) 97 (+3) 94
20FT WIND AM (MPH) W 9-10 SE 10-15
20FT WIND PM (MPH) S 8-9 NW 9-10 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 19 18 25
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.05-0.10
11 AM MIXING HGT (FT) 2700 2300
MAX MIXING HGT (FT) 4700 4600
TRANSPORT WND (MPH) NW 14 S 34
VENT RATE (MPH-FT) 70500 161000
VENT RATE CATEGORY FAIR VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. LOWS IN THE LOWER
40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE LOWER 50S. NORTHWEST WINDS 15 TO 20 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ019-160915-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE TSTMS
CHANCE PRECIP (%) 80 30 30
MAX TEMP (24HR TREND) 73 (+1) 82
MIN RH % (24HR TREND) 54 (-21) 43
MIN TEMP (24HR TREND) 60 (-2) 52
MAX RH % (24HR TREND) 92 (+3) 92
20FT WIND AM (MPH) W 10-11 SE 10-15
20FT WIND PM (MPH) S 9-11 W 10-11 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 23 20 26
PRECIP AMOUNT (IN) 0.10-0.25 0.05-0.10 0.00 0.01-0.05
11 AM MIXING HGT (FT) 2800 2400
MAX MIXING HGT (FT) 5100 4700
TRANSPORT WND (MPH) W 18 S 31
VENT RATE (MPH-FT) 91800 145700
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE MID 50S. WEST WINDS 15 TO 20 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS IN THE MID 30S. WEST
WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTH WINDS
AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. SOUTHEAST WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ020-160915-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 80 40 20
MAX TEMP (24HR TREND) 72 (+1) 81
MIN RH % (24HR TREND) 62 (-15) 47
MIN TEMP (24HR TREND) 60 (-2) 50
MAX RH % (24HR TREND) 95 (+6) 96
20FT WIND AM (MPH) W 9-10 SE 10-15
20FT WIND PM (MPH) S 8-9 W 9-10 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 21 19 24
PRECIP AMOUNT (IN) 0.10-0.25 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2900 2200
MAX MIXING HGT (FT) 4600 4900
TRANSPORT WND (MPH) W 17 S 29
VENT RATE (MPH-FT) 78200 147000
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING.
HIGHS IN THE UPPER 50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS IN THE MID 30S. WEST
WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. NORTHWEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. PATCHY FROST AFTER MIDNIGHT. LOWS
IN THE MID 30S. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50. SOUTHWEST WINDS
AROUND 10 MPH.
ILZ021-160915-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE SHOWERS
CHANCE PRECIP (%) 80 30 20
MAX TEMP (24HR TREND) 73 (+1) 83
MIN RH % (24HR TREND) 60 (-16) 44
MIN TEMP (24HR TREND) 61 (-1) 51
MAX RH % (24HR TREND) 95 (+11) 97
20FT WIND AM (MPH) W 10 SE 10-15
20FT WIND PM (MPH) S 8-10 W 10 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 23 19 25
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3000 2300
MAX MIXING HGT (FT) 4900 5100
TRANSPORT WND (MPH) W 19 S 28
VENT RATE (MPH-FT) 98000 147900
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS IN THE MID 30S. WEST
WINDS AROUND 10 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 60S. SOUTHEAST WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. WARMER. LOWS AROUND 50. SOUTH
WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ022-160915-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 80 40 10
MAX TEMP (24HR TREND) 72 (+1) 81
MIN RH % (24HR TREND) 63 (-13) 47
MIN TEMP (24HR TREND) 60 (-5) 50
MAX RH % (24HR TREND) 96 (+8) 97
20FT WIND AM (MPH) SW 10 SE 10-15
20FT WIND PM (MPH) S 8-10 W 10 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 23 18 24
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 2900 2200
MAX MIXING HGT (FT) 4600 5000
TRANSPORT WND (MPH) W 17 S 28
VENT RATE (MPH-FT) 78200 145000
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
50S. WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50. SOUTHWEST WINDS
AROUND 10 MPH.
ILZ032-160915-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 80 20 20
MAX TEMP (24HR TREND) 74 (+1) 83
MIN RH % (24HR TREND) 53 (-19) 43
MIN TEMP (24HR TREND) 60 (-4) 51
MAX RH % (24HR TREND) 95 (+10) 97
20FT WIND AM (MPH) SW 11-12 SE 10-15
20FT WIND PM (MPH) S 10-11 W 11-12 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 23 21 25
PRECIP AMOUNT (IN) 0.25-0.50 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 3200 2500
MAX MIXING HGT (FT) 5400 5000
TRANSPORT WND (MPH) W 20 S 28
VENT RATE (MPH-FT) 113400 145000
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS IN THE UPPER
50S. WEST WINDS 15 TO 20 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS IN THE MID 30S. WEST
WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 60S. SOUTHEAST WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ023-160915-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 80 40 10 10
MAX TEMP (24HR TREND) 73 (+1) 82
MIN RH % (24HR TREND) 59 (-16) 45
MIN TEMP (24HR TREND) 60 (-6) 50
MAX RH % (24HR TREND) 97 (+9) 98
20FT WIND AM (MPH) SW 10-11 SE 10-15
20FT WIND PM (MPH) S 8-10 W 10-11 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 21 19 23
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3100 2300
MAX MIXING HGT (FT) 4700 5300
TRANSPORT WND (MPH) W 19 S 27
VENT RATE (MPH-FT) 94000 148400
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS. SHOWERS. LOWS IN THE
UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY IN THE AFTERNOON. HIGHS AROUND 60.
WEST WINDS AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS AROUND 10 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ039-160915-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR PCLDY
PRECIP TYPE TSTMS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 80 20 10 20
MAX TEMP (24HR TREND) 75 (+1) 83
MIN RH % (24HR TREND) 47 (-22) 42
MIN TEMP (24HR TREND) 60 (-7) 51
MAX RH % (24HR TREND) 94 (+10) 97
20FT WIND AM (MPH) SW 10-15 SE 10-15
20FT WIND PM (MPH) S 10-12 W 10-15 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 21 21 24
PRECIP AMOUNT (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3300 2500
MAX MIXING HGT (FT) 5400 5100
TRANSPORT WND (MPH) W 23 S 28
VENT RATE (MPH-FT) 124200 147900
VENT RATE CATEGORY VERY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
SHOWERS AND A CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 40S. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. A CHANCE OF SHOWERS. HIGHS IN THE LOWER 60S. WEST WINDS
15 TO 20 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS 10 TO 15 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 50S. WEST WINDS AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS 5 TO 10 MPH.
MONDAY
SUNNY. HIGHS IN THE MID 60S. SOUTHEAST WINDS AROUND
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHWEST WINDS
AROUND 15 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
ILZ033-160915-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 20 10 10
MAX TEMP (24HR TREND) 75 (+2) 82
MIN RH % (24HR TREND) 49 (-21) 41
MIN TEMP (24HR TREND) 61 (-6) 50
MAX RH % (24HR TREND) 93 (+7) 96
20FT WIND AM (MPH) SW 11 SE 10-15
20FT WIND PM (MPH) S 8-10 W 11 LGT/VAR S 10-15
PEAK WIND GUSTS (MPH) 21 20 21
PRECIP AMOUNT (IN) 0.25-0.50 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 3600 2400
MAX MIXING HGT (FT) 5200 5200
TRANSPORT WND (MPH) W 23 S 26
VENT RATE (MPH-FT) 119600 135200
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS. SHOWERS. LOWS AROUND
50. SOUTH WINDS AROUND 15 MPH.
SATURDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. A CHANCE OF SHOWERS. HIGHS IN THE LOWER 60S. WEST WINDS
AROUND 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS AROUND 10 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 50S. WEST WINDS AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. SOUTHEAST WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE MID 70S. SOUTHWEST
WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
INZ010-160915-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 40 10 10
MAX TEMP (24HR TREND) 74 (+2) 81
MIN RH % (24HR TREND) 57 (-19) 45
MIN TEMP (24HR TREND) 61 (-5) 50
MAX RH % (24HR TREND) 95 (+2) 97
20FT WIND AM (MPH) SW 10 SE 6-11
20FT WIND PM (MPH) S 8-10 W 10 LGT/VAR S 6-11
PEAK WIND GUSTS (MPH) 21 20 19
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3700 2200
MAX MIXING HGT (FT) 5000 5400
TRANSPORT WND (MPH) W 21 S 25
VENT RATE (MPH-FT) 110000 135000
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS. SHOWERS. LOWS IN THE
LOWER 50S. SOUTH WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. A CHANCE OF SHOWERS. HIGHS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 15 MPH, BECOMING WEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE MID 30S.
WEST WINDS AROUND 10 MPH.
SUNDAY
SUNNY, COOLER. HIGHS IN THE LOWER 50S. WEST WINDS 10 TO
15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS 5 TO 10 MPH.
INZ011-160915-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
358 PM CDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 70 40 10 10
MAX TEMP (24HR TREND) 73 (+1) 80
MIN RH % (24HR TREND) 59 (-18) 47
MIN TEMP (24HR TREND) 62 (-4) 50
MAX RH % (24HR TREND) 94 (+3) 96
20FT WIND AM (MPH) SW 10 SE 6-11
20FT WIND PM (MPH) S 9-10 W 10 LGT/VAR S 6-11
PEAK WIND GUSTS (MPH) 21 20 18
PRECIP AMOUNT (IN) 0.25-0.50 0.10-0.25 0.00 0.00
11 AM MIXING HGT (FT) 3700 2200
MAX MIXING HGT (FT) 4900 5200
TRANSPORT WND (MPH) W 21 S 24
VENT RATE (MPH-FT) 107800 124800
VENT RATE CATEGORY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS. SHOWERS. LOWS IN THE
LOWER 50S. SOUTH WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY IN THE MORNING,
THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 15 MPH, BECOMING
WEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE UPPER 30S.
WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. COOLER. HIGHS IN THE LOWER 50S. WEST
WINDS AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. NOT AS COOL. LOWS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS 5 TO 10 MPH.
INZ019-160915-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
458 PM EDT WED APR 15 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER CLOUDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 80 40 10 10
MAX TEMP (24HR TREND) 74 (0) 80
MIN RH % (24HR TREND) 52 (-16) 46
MIN TEMP (24HR TREND) 62 (-4) 51
MAX RH % (24HR TREND) 92 (+2) 95
20FT WIND AM (MPH) SW 11 SE 6-11
20FT WIND PM (MPH) S 9-11 W 11 LGT/VAR S 6-11
PEAK WIND GUSTS (MPH) 21 20 19
PRECIP AMOUNT (IN) 0.25-0.50 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3700 2200
MAX MIXING HGT (FT) 5600 5100
TRANSPORT WND (MPH) W 25 S 25
VENT RATE (MPH-FT) 140000 127500
VENT RATE CATEGORY VERY GOOD VERY GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
FRIDAY NIGHT
A CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS IN
THE EVENING, THEN SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 50S.
SOUTH WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY IN THE MORNING,
THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE MID 60S. SOUTHWEST WINDS AROUND 15 MPH, BECOMING
WEST IN THE AFTERNOON.
SATURDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS IN THE UPPER 30S.
WEST WINDS AROUND 10 MPH.
SUNDAY
SUNNY, COOLER. HIGHS IN THE LOWER 50S. WEST WINDS
AROUND 15 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST
WINDS AROUND 5 MPH.
MONDAY
SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. NOT AS COOL. LOWS IN THE UPPER 40S.
SOUTH WINDS AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. WARMER. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH.
RATZER
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page