737
FNUS53 KLOT 201007
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
507 AM CDT THU AUG 20 2026
DISCUSSION
MOSTLY SUNNY SKIES ARE EXPECTED TODAY AS SURFACE HIGH PRESSURE
SETTLES INTO THE REGION. RELATIVE HUMIDITY VALUES ARE FORECAST TO
DROP INTO THE 40-50 PERCENT RANGE ACROSS INTERIOR NORTHERN
ILLINOIS AWAY FROM THE LAKESHORE. WINDS WILL PREVAIL GENERALLY
NORTHEASTERLY FOR MOST AREAS TODAY AROUND 5 TO 10 MPH.
SHOWER AND STORM CHANCES RETURN FRIDAY INTO FRIDAY NIGHT ALONG A
COLD FRONT, SOME OF WHICH COULD BE STRONG IN THE AFTERNOON AND
EVENING.
ILZ014-202130-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 50 50
MAX TEMP (24HR TREND) 80 (+1) 80
MIN RH % (24HR TREND) 43 (-20) 56
MIN TEMP (24HR TREND) 60 (-5) 63
MAX RH % (24HR TREND) 86 (+4) 98
20FT WIND AM (MPH) NE 5 SW 5-7
20FT WIND PM (MPH) NE 5 LGT/VAR SW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.05-0.10
11 AM MIXING HGT (FT) 3600 2200
MAX MIXING HGT (FT) 4600 4000
TRANSPORT WND (MPH) NE 9 SW 9
VENT RATE (MPH-FT) 41400 36000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. WEST WINDS
AROUND 5 MPH.
ILZ006-202130-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 50 40
MAX TEMP (24HR TREND) 79 (+2) 80
MIN RH % (24HR TREND) 46 (-19) 61
MIN TEMP (24HR TREND) 58 (-2) 61
MAX RH % (24HR TREND) 86 (-5) 100
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 3700 1900
MAX MIXING HGT (FT) 4900 3600
TRANSPORT WND (MPH) E 8 SW 10
VENT RATE (MPH-FT) 39200 36000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST WINDS AROUND
5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
INZ001-202130-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 78 (-1) 79
MIN RH % (24HR TREND) 54 (-14) 61
MIN TEMP (24HR TREND) 56 (-8) 62
MAX RH % (24HR TREND) 97 (+12) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) NE 4-5 LGT/VAR SW 2-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 2800 2100
MAX MIXING HGT (FT) 3500 3300
TRANSPORT WND (MPH) NE 10 SW 6
VENT RATE (MPH-FT) 35000 23100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS, BECOMING SOUTH
AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
A CHANCE OF SHOWERS IN THE MORNING. MOSTLY SUNNY.
HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
INZ002-202130-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 77 (-4) 79
MIN RH % (24HR TREND) 56 (-11) 62
MIN TEMP (24HR TREND) 57 (-5) 63
MAX RH % (24HR TREND) 99 (+12) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) N 4-5 LGT/VAR SW 3-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.05-0.10
11 AM MIXING HGT (FT) 2600 1900
MAX MIXING HGT (FT) 3600 3500
TRANSPORT WND (MPH) N 10 SW 6
VENT RATE (MPH-FT) 36000 24500
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTH WINDS AROUND
5 MPH, BECOMING WEST IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. 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 AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. NORTH
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.
ILZ013-202130-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 50 50
MAX TEMP (24HR TREND) 80 (-1) 80
MIN RH % (24HR TREND) 41 (-17) 58
MIN TEMP (24HR TREND) 59 (-4) 63
MAX RH % (24HR TREND) 87 (+1) 99
20FT WIND AM (MPH) LGT/VAR SW 5-7
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 5-7 LGT/VAR
PEAK WIND GUSTS (MPH) 14
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.05-0.10
11 AM MIXING HGT (FT) 3800 1900
MAX MIXING HGT (FT) 5100 3600
TRANSPORT WND (MPH) NE 8 SW 9
VENT RATE (MPH-FT) 40800 32400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS 5 TO
10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. SOUTHEAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHWEST
WINDS AROUND 5 MPH.
ILZ012-202130-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 50 50
MAX TEMP (24HR TREND) 80 (-2) 79
MIN RH % (24HR TREND) 45 (-13) 65
MIN TEMP (24HR TREND) 58 (-1) 61
MAX RH % (24HR TREND) 89 (-3) 100
20FT WIND AM (MPH) LGT/VAR SW 5-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 5-8 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.05-0.10
11 AM MIXING HGT (FT) 3200 1700
MAX MIXING HGT (FT) 4900 3000
TRANSPORT WND (MPH) NE 6 SW 10
VENT RATE (MPH-FT) 34300 30000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. WEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
ILZ005-202130-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 50 40
MAX TEMP (24HR TREND) 79 (-1) 79
MIN RH % (24HR TREND) 43 (-19) 66
MIN TEMP (24HR TREND) 58 (0) 60
MAX RH % (24HR TREND) 86 (-5) 100
20FT WIND AM (MPH) LGT/VAR SW 5-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 5-8 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 3200 1800
MAX MIXING HGT (FT) 5300 3200
TRANSPORT WND (MPH) E 5 SW 12
VENT RATE (MPH-FT) 31800 41600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS
AROUND 5 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS IN THE
LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ004-202130-
BOONE-
INCLUDING THE CITY OF BELVIDERE
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR PCLDY MCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 50 40
MAX TEMP (24HR TREND) 80 (-1) 79
MIN RH % (24HR TREND) 42 (-18) 66
MIN TEMP (24HR TREND) 58 (+1) 60
MAX RH % (24HR TREND) 87 (-4) 100
20FT WIND AM (MPH) LGT/VAR SW 5-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 5-8 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 3200 1900
MAX MIXING HGT (FT) 5300 3300
TRANSPORT WND (MPH) E 4 SW 12
VENT RATE (MPH-FT) 26500 42900
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ011-202130-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 60 50
MAX TEMP (24HR TREND) 80 (-2) 80
MIN RH % (24HR TREND) 43 (-16) 66
MIN TEMP (24HR TREND) 58 (-1) 61
MAX RH % (24HR TREND) 89 (-6) 99
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 3200 1800
MAX MIXING HGT (FT) 5000 3200
TRANSPORT WND (MPH) E 4 SW 11
VENT RATE (MPH-FT) 25000 38400
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
ILZ003-202130-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 60 40
MAX TEMP (24HR TREND) 80 (0) 80
MIN RH % (24HR TREND) 40 (-18) 64
MIN TEMP (24HR TREND) 58 (+1) 59
MAX RH % (24HR TREND) 88 (-6) 100
20FT WIND AM (MPH) LGT/VAR SW 7-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 7-8 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 3300 1900
MAX MIXING HGT (FT) 5400 3700
TRANSPORT WND (MPH) E 4 SW 12
VENT RATE (MPH-FT) 27000 48100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS 5 TO
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
ILZ008-202130-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR PCLDY MCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 60 40
MAX TEMP (24HR TREND) 80 (-2) 80
MIN RH % (24HR TREND) 42 (-12) 66
MIN TEMP (24HR TREND) 58 (0) 60
MAX RH % (24HR TREND) 92 (-4) 99
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 3200 1800
MAX MIXING HGT (FT) 5300 3300
TRANSPORT WND (MPH) SE 4 SW 12
VENT RATE (MPH-FT) 26500 42900
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS 5 TO
10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
ILZ010-202130-
LEE-
INCLUDING THE CITY OF DIXON
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR MCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 10 60 50
MAX TEMP (24HR TREND) 80 (-3) 81
MIN RH % (24HR TREND) 45 (-9) 65
MIN TEMP (24HR TREND) 58 (-1) 61
MAX RH % (24HR TREND) 93 (-2) 99
20FT WIND AM (MPH) LGT/VAR SW 6-8
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 6-8 LGT/VAR
PEAK WIND GUSTS (MPH) 15
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.01-0.05
11 AM MIXING HGT (FT) 2900 1800
MAX MIXING HGT (FT) 5000 3500
TRANSPORT WND (MPH) NE 4 SW 11
VENT RATE (MPH-FT) 25000 42000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
ILZ019-202130-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 50 50
MAX TEMP (24HR TREND) 80 (-2) 80
MIN RH % (24HR TREND) 48 (-16) 63
MIN TEMP (24HR TREND) 58 (-3) 63
MAX RH % (24HR TREND) 90 (-5) 96
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 4-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.05-0.10
11 AM MIXING HGT (FT) 2700 1800
MAX MIXING HGT (FT) 4700 3300
TRANSPORT WND (MPH) NE 5 SW 9
VENT RATE (MPH-FT) 28200 29700
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. NORTHWEST
WINDS AROUND 5 MPH.
ILZ020-202130-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 50 50
MAX TEMP (24HR TREND) 80 (-3) 80
MIN RH % (24HR TREND) 46 (-10) 64
MIN TEMP (24HR TREND) 58 (-3) 63
MAX RH % (24HR TREND) 91 (-2) 99
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 4-7 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.10-0.25 0.05-0.10
11 AM MIXING HGT (FT) 2800 1500
MAX MIXING HGT (FT) 4800 2900
TRANSPORT WND (MPH) NE 6 SW 9
VENT RATE (MPH-FT) 33600 26100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S.
NORTHWEST WINDS AROUND 5 MPH.
ILZ021-202130-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 40 50
MAX TEMP (24HR TREND) 80 (-3) 81
MIN RH % (24HR TREND) 51 (-13) 62
MIN TEMP (24HR TREND) 58 (-4) 64
MAX RH % (24HR TREND) 93 (-2) 98
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 3-6 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.10-0.25
11 AM MIXING HGT (FT) 2700 1700
MAX MIXING HGT (FT) 4600 2900
TRANSPORT WND (MPH) NE 5 SW 9
VENT RATE (MPH-FT) 27600 26100
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTH WINDS AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 60. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 60S. LIGHT
WINDS.
ILZ022-202130-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER CLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 40 50
MAX TEMP (24HR TREND) 79 (-3) 79
MIN RH % (24HR TREND) 48 (-13) 62
MIN TEMP (24HR TREND) 57 (-6) 62
MAX RH % (24HR TREND) 93 (+2) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 3-6 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.10-0.25
11 AM MIXING HGT (FT) 3000 1700
MAX MIXING HGT (FT) 4700 2900
TRANSPORT WND (MPH) NE 8 SW 8
VENT RATE (MPH-FT) 37600 23200
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
AROUND 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS, BECOMING SOUTH
AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. WEST
WINDS AROUND 5 MPH.
ILZ032-202130-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 80 (-2) 81
MIN RH % (24HR TREND) 54 (-16) 61
MIN TEMP (24HR TREND) 58 (-5) 63
MAX RH % (24HR TREND) 95 (-4) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR SW 2-5 LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.05-0.10
11 AM MIXING HGT (FT) 2600 2000
MAX MIXING HGT (FT) 4400 3200
TRANSPORT WND (MPH) NE 6 SW 8
VENT RATE (MPH-FT) 30800 25600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 60. NORTHWEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 80. SOUTH WINDS AROUND
5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS, BECOMING SOUTH
AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ023-202130-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 79 (-3) 79
MIN RH % (24HR TREND) 54 (-14) 61
MIN TEMP (24HR TREND) 56 (-6) 62
MAX RH % (24HR TREND) 96 (+3) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.05-0.10 0.10-0.25
11 AM MIXING HGT (FT) 2800 1900
MAX MIXING HGT (FT) 4300 3100
TRANSPORT WND (MPH) NE 8 SW 5
VENT RATE (MPH-FT) 34400 18600
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS, BECOMING NORTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 80. WEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
ILZ039-202130-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 40
MAX TEMP (24HR TREND) 79 (-3) 80
MIN RH % (24HR TREND) 59 (-12) 60
MIN TEMP (24HR TREND) 57 (-6) 63
MAX RH % (24HR TREND) 95 (-5) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.05-0.10
11 AM MIXING HGT (FT) 2400 2100
MAX MIXING HGT (FT) 4300 3500
TRANSPORT WND (MPH) NE 6 W 5
VENT RATE (MPH-FT) 30100 21000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS, BECOMING SOUTHEAST AROUND 5 MPH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS, BECOMING SOUTH
AROUND 5 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS
AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING NORTHWEST AROUND 5 MPH AFTER MIDNIGHT.
ILZ033-202130-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 79 (-3) 80
MIN RH % (24HR TREND) 57 (-13) 60
MIN TEMP (24HR TREND) 57 (-5) 63
MAX RH % (24HR TREND) 95 (-5) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 2500 1900
MAX MIXING HGT (FT) 4300 3500
TRANSPORT WND (MPH) NE 6 SW 5
VENT RATE (MPH-FT) 30100 21000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ010-202130-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 78 (-1) 79
MIN RH % (24HR TREND) 58 (-15) 62
MIN TEMP (24HR TREND) 56 (-6) 63
MAX RH % (24HR TREND) 98 (0) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 2600 2000
MAX MIXING HGT (FT) 4300 3500
TRANSPORT WND (MPH) NE 8 SW 5
VENT RATE (MPH-FT) 34400 21000
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND
5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ011-202130-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
507 AM CDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 30 50
MAX TEMP (24HR TREND) 78 (-2) 79
MIN RH % (24HR TREND) 56 (-16) 63
MIN TEMP (24HR TREND) 57 (-5) 63
MAX RH % (24HR TREND) 99 (+1) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.10-0.25
11 AM MIXING HGT (FT) 2500 2000
MAX MIXING HGT (FT) 4300 3800
TRANSPORT WND (MPH) N 8 SW 5
VENT RATE (MPH-FT) 34400 22800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS, BECOMING NORTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. 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 LOWER 60S. LIGHT
WINDS.
INZ019-202130-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
607 AM EDT THU AUG 20 2026
TODAY TONIGHT FRI FRI NIGHT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 20 50
MAX TEMP (24HR TREND) 79 (-2) 79
MIN RH % (24HR TREND) 60 (-13) 63
MIN TEMP (24HR TREND) 58 (-5) 64
MAX RH % (24HR TREND) 97 (-3) 100
20FT WIND AM (MPH) LGT/VAR LGT/VAR
20FT WIND PM (MPH) LGT/VAR LGT/VAR LGT/VAR LGT/VAR
PEAK WIND GUSTS (MPH)
PRECIP AMOUNT (IN) 0.00 0.00 0.01-0.05 0.05-0.10
11 AM MIXING HGT (FT) 2500 2200
MAX MIXING HGT (FT) 4300 3800
TRANSPORT WND (MPH) N 8 W 5
VENT RATE (MPH-FT) 34400 22800
VENT RATE CATEGORY POOR POOR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. LIGHT
WINDS.
SUNDAY
SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. LIGHT WINDS.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. LIGHT WINDS.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
PETR
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