163
FNUS53 KLOT 190955
FWFLOT
FIRE WEATHER PLANNING FORECAST FOR NORTHERN IL AND NORTHWEST IN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
455 AM CDT TUE MAY 19 2026
DISCUSSION
SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE TODAY, AHEAD OF
A COLD FRONT WHICH WILL PUSH SOUTHEAST ACROSS THE AREA THROUGH
THIS EVENING. A FEW STRONG TO SEVERE STORMS MAY OCCUR MAINLY SOUTH
OF A PONTIAC TO VALPARAISO LINE THIS AFTERNOON. DRY, BREEZY AND
COOLER CONDITIONS CAN BE EXPECTED WEDNESDAY AND THURSDAY IN THE
WAKE OF THE COLD FRONT. AFTERNOON HIGHS IN THE 70S TODAY, DAYTIME
TEMPERATURES WILL GENERALLY RANGE FROM THE 50S NEAR LAKE MICHIGAN
TO THE 60S WELL INLAND BOTH WEDNESDAY AND THURSDAY WITH ONSHORE
WINDS OFF OF THE LAKE ALSO LIMITING MIXING HEIGHTS THERE.
RAIN CHANCES RETURN TO THE REGION THURSDAY NIGHT INTO FRIDAY, AS
AN AREA OF LOW PRESSURE TRACKS THROUGH THE AREA. MILDER WEATHER
THEN RETURNS TO THE AREA OVER THE WEEKEND ALONG WITH SOME SPOTTY
RAIN CHANCES.
ILZ014-192130-
COOK-
INCLUDING THE CITIES OF CHICAGO, SCHAUMBURG, EVANSTON, OAK LAWN,
LEMONT, ORLAND PARK, AND PARK FOREST
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 78 (-2) 58
MIN RH % (24HR TREND) 59 (-5) 50
MIN TEMP (24HR TREND) 48 (-17) 43
MAX RH % (24HR TREND) 76 (-13) 82
20FT WIND AM (MPH) SW 10-15 NE 12
20FT WIND PM (MPH) W 10-15 NW 10 NE 12 NE 8-9
PEAK WIND GUSTS (MPH) 28 19 21 21
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3300 3600
MAX MIXING HGT (FT) 4000 3600
TRANSPORT WND (MPH) SW 27 NE 17
VENT RATE (MPH-FT) 112000 61200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHEAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 60S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHEAST WINDS
AROUND 5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ006-192130-
LAKE IL-
INCLUDING THE CITIES OF WAUKEGAN, BUFFALO GROVE, MUNDELEIN,
AND GURNEE
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 77 (-5) 57
MIN RH % (24HR TREND) 57 (-11) 53
MIN TEMP (24HR TREND) 46 (-20) 42
MAX RH % (24HR TREND) 80 (-7) 82
20FT WIND AM (MPH) SW 10-15 NE 10-11
20FT WIND PM (MPH) W 10-15 NW 9-10 NE 10-11 NE 8-9
PEAK WIND GUSTS (MPH) 29 17 20 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3900
MAX MIXING HGT (FT) 3700 3900
TRANSPORT WND (MPH) SW 32 NE 14
VENT RATE (MPH-FT) 118400 58500
VENT RATE CATEGORY VERY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE UPPER 50S. NORTHEAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
NORTHEAST WINDS AROUND 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE
EVENING. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 60S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. EAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. SOUTHEAST WINDS
AROUND 5 MPH.
INZ001-192130-
LAKE IN-
INCLUDING THE CITIES OF GARY, HAMMOND, AND MERRILLVILLE
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 20
MAX TEMP (24HR TREND) 79 (-4) 58
MIN RH % (24HR TREND) 62 (+1) 55
MIN TEMP (24HR TREND) 49 (-15) 42
MAX RH % (24HR TREND) 82 (-11) 89
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) W 10-15 NW 9-10 N 10-15 N 7-9
PEAK WIND GUSTS (MPH) 26 20 23 23
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3200 3000
MAX MIXING HGT (FT) 3900 3100
TRANSPORT WND (MPH) SW 25 N 19
VENT RATE (MPH-FT) 97500 62000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY IN THE EVENING.
LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 60S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTHEAST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTHEAST WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. SOUTHEAST WINDS
AROUND 5 MPH.
INZ002-192130-
PORTER-
INCLUDING THE CITIES OF PORTAGE, VALPARAISO, AND CHESTERTON
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30
MAX TEMP (24HR TREND) 80 (-3) 58
MIN RH % (24HR TREND) 61 (0) 56
MIN TEMP (24HR TREND) 49 (-15) 43
MAX RH % (24HR TREND) 85 (-8) 89
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) W 10-15 NW 9-11 N 10-15 N 7-8
PEAK WIND GUSTS (MPH) 26 20 23 19
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3100 3100
MAX MIXING HGT (FT) 4000 3100
TRANSPORT WND (MPH) SW 24 N 19
VENT RATE (MPH-FT) 96000 62000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE UPPER 60S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHEAST
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. HIGHS AROUND 80. SOUTHEAST WINDS AROUND
5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ013-192130-
DUPAGE-
INCLUDING THE CITIES OF NAPERVILLE, WHEATON, DOWNERS GROVE,
LOMBARD, AND CAROL STREAM
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 77 (-2) 59
MIN RH % (24HR TREND) 61 (-9) 49
MIN TEMP (24HR TREND) 48 (-17) 43
MAX RH % (24HR TREND) 76 (-15) 83
20FT WIND AM (MPH) SW 10-15 NE 11-12
20FT WIND PM (MPH) W 10-15 NW 10 NE 11-12 NE 8-9
PEAK WIND GUSTS (MPH) 28 17 19 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3300 3800
MAX MIXING HGT (FT) 3700 3900
TRANSPORT WND (MPH) SW 28 NE 14
VENT RATE (MPH-FT) 107300 58500
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS 10 TO
15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. NORTHEAST
WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND
5 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ012-192130-
KANE-
INCLUDING THE CITIES OF AURORA AND ELGIN
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30
MAX TEMP (24HR TREND) 76 (-3) 61
MIN RH % (24HR TREND) 60 (-13) 51
MIN TEMP (24HR TREND) 46 (-18) 41
MAX RH % (24HR TREND) 80 (-13) 83
20FT WIND AM (MPH) SW 10-15 NE 10
20FT WIND PM (MPH) W 10-15 NW 9-10 NE 10 NE 9-10
PEAK WIND GUSTS (MPH) 28 17 18 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3100 3900
MAX MIXING HGT (FT) 3300 4300
TRANSPORT WND (MPH) W 28 NE 12
VENT RATE (MPH-FT) 95700 55900
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. NORTHEAST
WINDS AROUND 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. SOUTHEAST WINDS
AROUND 5 MPH.
ILZ005-192130-
MCHENRY-
INCLUDING THE CITIES OF CRYSTAL LAKE, ALGONQUIN, MCHENRY,
AND WOODSTOCK
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 76 (-6) 60
MIN RH % (24HR TREND) 56 (-9) 53
MIN TEMP (24HR TREND) 45 (-21) 40
MAX RH % (24HR TREND) 81 (-7) 83
20FT WIND AM (MPH) SW 10-15 N 9
20FT WIND PM (MPH) W 10-15 NW 9-10 NE 9 NE 8-9
PEAK WIND GUSTS (MPH) 29 17 18 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3900
MAX MIXING HGT (FT) 3500 4400
TRANSPORT WND (MPH) NW 20 NE 11
VENT RATE (MPH-FT) 73500 52800
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS AROUND 60. EAST WINDS 10 TO
15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE LOWER 60S. EAST
WINDS AROUND 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS AROUND 70. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 50. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. EAST WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ004-192130-
BOONE-
INCLUDING THE CITY OF BELVIDERE
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 73 (-9) 61
MIN RH % (24HR TREND) 57 (-5) 48
MIN TEMP (24HR TREND) 45 (-21) 40
MAX RH % (24HR TREND) 80 (-8) 80
20FT WIND AM (MPH) SW 10-15 N 9
20FT WIND PM (MPH) W 10-15 NW 8-10 NE 9 E 8-9
PEAK WIND GUSTS (MPH) 29 18 17 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2800 4000
MAX MIXING HGT (FT) 3600 4900
TRANSPORT WND (MPH) NW 21 NE 11
VENT RATE (MPH-FT) 79200 58800
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. EAST WINDS
AROUND 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE LOWER 60S. EAST
WINDS AROUND 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 50. EAST WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTH WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
ILZ011-192130-
DE KALB-
INCLUDING THE CITIES OF DEKALB AND SYCAMORE
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 74 (-5) 62
MIN RH % (24HR TREND) 58 (-9) 48
MIN TEMP (24HR TREND) 46 (-18) 41
MAX RH % (24HR TREND) 80 (-13) 81
20FT WIND AM (MPH) SW 15-20 NE 9-10
20FT WIND PM (MPH) W 15-20 NW 9-11 NE 9-10 NE 9-10
PEAK WIND GUSTS (MPH) 29 18 18 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3800
MAX MIXING HGT (FT) 3200 4600
TRANSPORT WND (MPH) NW 18 NE 12
VENT RATE (MPH-FT) 57600 59800
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. EAST WINDS
AROUND 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ003-192130-
WINNEBAGO-
INCLUDING THE CITY OF ROCKFORD
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 72 (-9) 62
MIN RH % (24HR TREND) 52 (-8) 43
MIN TEMP (24HR TREND) 44 (-21) 41
MAX RH % (24HR TREND) 80 (-9) 76
20FT WIND AM (MPH) SW 10-15 N 9
20FT WIND PM (MPH) NW 10-15 NW 8-10 NE 9 E 7-9
PEAK WIND GUSTS (MPH) 28 17 16 16
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 4200
MAX MIXING HGT (FT) 3800 5000
TRANSPORT WND (MPH) NW 19 NE 11
VENT RATE (MPH-FT) 76000 60000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE LOWER 60S. EAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. EAST WINDS
AROUND 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 70S. NORTHEAST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 50. EAST WINDS AROUND 5 MPH IN THE
EVENING, BECOMING LIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHEAST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTH WINDS 5 TO
10 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ008-192130-
OGLE-
INCLUDING THE CITIES OF ROCHELLE, OREGON, AND BYRON
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 73 (-7) 64
MIN RH % (24HR TREND) 54 (-6) 43
MIN TEMP (24HR TREND) 44 (-21) 41
MAX RH % (24HR TREND) 80 (-10) 76
20FT WIND AM (MPH) SW 10-15 N 9-10
20FT WIND PM (MPH) NW 10-15 NW 9-11 NE 9-10 E 8-9
PEAK WIND GUSTS (MPH) 29 17 16 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2600 4100
MAX MIXING HGT (FT) 3700 4900
TRANSPORT WND (MPH) NW 19 NE 11
VENT RATE (MPH-FT) 74000 58800
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS 10 TO
15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 40S. EAST WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. EAST WINDS
AROUND 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S. LIGHT WINDS.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
AROUND 5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHEAST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. SOUTHEAST WINDS
AROUND 5 MPH.
ILZ010-192130-
LEE-
INCLUDING THE CITY OF DIXON
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20
MAX TEMP (24HR TREND) 73 (-7) 64
MIN RH % (24HR TREND) 57 (-5) 45
MIN TEMP (24HR TREND) 46 (-19) 41
MAX RH % (24HR TREND) 80 (-10) 77
20FT WIND AM (MPH) SW 10-15 NE 9-10
20FT WIND PM (MPH) NW 10-15 NW 9-11 NE 9-10 E 9
PEAK WIND GUSTS (MPH) 29 18 17 17
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2700 3900
MAX MIXING HGT (FT) 3400 5000
TRANSPORT WND (MPH) NW 18 NE 12
VENT RATE (MPH-FT) 61200 65000
VENT RATE CATEGORY FAIR FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
PARTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS 10 TO
15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 60S. EAST WINDS
10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 40S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHEAST
WINDS AROUND 5 MPH.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 60. SOUTHEAST WINDS
AROUND 5 MPH.
ILZ019-192130-
LA SALLE-
INCLUDING THE CITIES OF OTTAWA, STREATOR, LA SALLE, MENDOTA,
AND MARSEILLES
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40
MAX TEMP (24HR TREND) 76 (-2) 64
MIN RH % (24HR TREND) 61 (-8) 45
MIN TEMP (24HR TREND) 48 (-17) 43
MAX RH % (24HR TREND) 77 (-14) 78
20FT WIND AM (MPH) SW 10-15 NE 10
20FT WIND PM (MPH) W 10-15 NW 9-10 NE 10 NE 8-10
PEAK WIND GUSTS (MPH) 27 17 19 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 2900 3600
MAX MIXING HGT (FT) 3300 4600
TRANSPORT WND (MPH) W 26 NE 14
VENT RATE (MPH-FT) 85800 69000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE MID
60S. EAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS
AROUND 5 MPH, BECOMING NORTHWEST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ020-192130-
KENDALL-
INCLUDING THE CITIES OF OSWEGO, YORKVILLE, AND PLANO
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
MAX TEMP (24HR TREND) 77 (0) 62
MIN RH % (24HR TREND) 63 (-10) 48
MIN TEMP (24HR TREND) 47 (-17) 43
MAX RH % (24HR TREND) 79 (-18) 83
20FT WIND AM (MPH) SW 10-15 NE 10
20FT WIND PM (MPH) W 10-15 NW 9 NE 10 NE 8-9
PEAK WIND GUSTS (MPH) 27 17 18 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3100 3700
MAX MIXING HGT (FT) 3500 4300
TRANSPORT WND (MPH) SW 27 NE 12
VENT RATE (MPH-FT) 98000 55900
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S. EAST
WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND
5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ021-192130-
GRUNDY-
INCLUDING THE CITIES OF MORRIS, COAL CITY, AND MINOOKA
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10
MAX TEMP (24HR TREND) 78 (+1) 63
MIN RH % (24HR TREND) 65 (-1) 49
MIN TEMP (24HR TREND) 49 (-15) 44
MAX RH % (24HR TREND) 79 (-16) 85
20FT WIND AM (MPH) SW 10-15 NE 10-11
20FT WIND PM (MPH) W 10-15 NW 9 NE 10-11 NE 7-9
PEAK WIND GUSTS (MPH) 26 16 19 18
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3000 3600
MAX MIXING HGT (FT) 3500 4200
TRANSPORT WND (MPH) W 25 NE 16
VENT RATE (MPH-FT) 87500 67200
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S. EAST
WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS AROUND 5 MPH IN
THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS AROUND 80. LIGHT WINDS, BECOMING
NORTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ022-192130-
WILL-
INCLUDING THE CITIES OF JOLIET, BOLINGBROOK, AND WILMINGTON
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10
MAX TEMP (24HR TREND) 78 (-2) 61
MIN RH % (24HR TREND) 67 (+2) 51
MIN TEMP (24HR TREND) 49 (-15) 42
MAX RH % (24HR TREND) 80 (-16) 88
20FT WIND AM (MPH) SW 10-15 NE 10-15
20FT WIND PM (MPH) W 10-15 NW 9-10 NE 10-15 NE 8-9
PEAK WIND GUSTS (MPH) 27 17 21 19
PRECIP AMOUNT (IN) 0.01-0.05 0.00 0.00 0.00
11 AM MIXING HGT (FT) 3100 3600
MAX MIXING HGT (FT) 3700 3800
TRANSPORT WND (MPH) SW 25 NE 17
VENT RATE (MPH-FT) 92500 64600
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
NORTHEAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ032-192130-
LIVINGSTON-
INCLUDING THE CITIES OF PONTIAC, DWIGHT, AND FAIRBURY
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 20
MAX TEMP (24HR TREND) 78 (0) 64
MIN RH % (24HR TREND) 66 (-3) 50
MIN TEMP (24HR TREND) 50 (-14) 42
MAX RH % (24HR TREND) 81 (-16) 87
20FT WIND AM (MPH) SW 10-15 NE 11-12
20FT WIND PM (MPH) W 10-15 NW 10 NE 11-12 NE 7-10
PEAK WIND GUSTS (MPH) 27 17 21 19
PRECIP AMOUNT (IN) 0.01-0.05 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2800 3400
MAX MIXING HGT (FT) 3500 4200
TRANSPORT WND (MPH) W 24 NE 18
VENT RATE (MPH-FT) 84000 75600
VENT RATE CATEGORY GOOD GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. NORTHEAST WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
60S. EAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS AROUND
5 MPH, BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS AROUND 5 MPH.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ023-192130-
KANKAKEE-
INCLUDING THE CITIES OF KANKAKEE, BOURBONNAIS, AND BRADLEY
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 20
MAX TEMP (24HR TREND) 79 (-2) 62
MIN RH % (24HR TREND) 62 (0) 53
MIN TEMP (24HR TREND) 50 (-13) 42
MAX RH % (24HR TREND) 81 (-14) 90
20FT WIND AM (MPH) SW 10-15 NE 10-15
20FT WIND PM (MPH) W 10-15 NW 9-10 NE 10-15 NE 7-8
PEAK WIND GUSTS (MPH) 26 18 21 19
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3100 3300
MAX MIXING HGT (FT) 3600 3500
TRANSPORT WND (MPH) W 25 NE 18
VENT RATE (MPH-FT) 90000 63000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S. EAST
WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. NORTH
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. NORTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
MONDAY
PARTLY SUNNY. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS
AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ039-192130-
FORD-
INCLUDING THE CITIES OF PAXTON AND GIBSON CITY
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40
MAX TEMP (24HR TREND) 79 (+2) 64
MIN RH % (24HR TREND) 65 (-5) 52
MIN TEMP (24HR TREND) 51 (-12) 42
MAX RH % (24HR TREND) 82 (-15) 87
20FT WIND AM (MPH) SW 10-15 NE 10-15
20FT WIND PM (MPH) W 10-15 NW 10-11 NE 10-15 NE 8-11
PEAK WIND GUSTS (MPH) 27 17 23 21
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2800 3100
MAX MIXING HGT (FT) 3600 3700
TRANSPORT WND (MPH) SW 24 NE 19
VENT RATE (MPH-FT) 86400 74000
VENT RATE CATEGORY GOOD GOOD
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
10 TO 15 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
60S. EAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 70S. NORTHWEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.
SUNDAY
PARTLY SUNNY. HIGHS AROUND 80. EAST WINDS AROUND 5 MPH,
BECOMING NORTH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. EAST WINDS
AROUND 5 MPH.
MONDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE
LOWER 80S. SOUTHEAST WINDS 5 TO 10 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
ILZ033-192130-
IROQUOIS-
INCLUDING THE CITIES OF WATSEKA AND GILMAN
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40
MAX TEMP (24HR TREND) 80 (-1) 63
MIN RH % (24HR TREND) 61 (-2) 50
MIN TEMP (24HR TREND) 51 (-13) 42
MAX RH % (24HR TREND) 80 (-15) 86
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) W 10-15 NW 10 NE 10-15 NE 6-8
PEAK WIND GUSTS (MPH) 27 18 21 18
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3000 3200
MAX MIXING HGT (FT) 3700 3500
TRANSPORT WND (MPH) W 24 NE 19
VENT RATE (MPH-FT) 88800 70000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
60S. EAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 70S. WEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S. LIGHT
WINDS.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS IN THE LOWER 80S. SOUTHEAST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
INZ010-192130-
NEWTON-
INCLUDING THE CITIES OF ROSELAWN, KENTLAND, AND MOROCCO
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40
MAX TEMP (24HR TREND) 80 (-4) 61
MIN RH % (24HR TREND) 63 (+6) 54
MIN TEMP (24HR TREND) 51 (-12) 42
MAX RH % (24HR TREND) 82 (-15) 88
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) W 10-15 NW 9-10 N 10-15 N 6-8
PEAK WIND GUSTS (MPH) 27 17 21 17
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 3000 3000
MAX MIXING HGT (FT) 4100 3300
TRANSPORT WND (MPH) SW 25 N 19
VENT RATE (MPH-FT) 102500 66000
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S. EAST
WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 70S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. LIGHT
WINDS.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS AROUND 80. SOUTHEAST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS.
INZ011-192130-
JASPER-
INCLUDING THE CITIES OF RENSSELAER AND DEMOTTE
455 AM CDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40
MAX TEMP (24HR TREND) 81 (-4) 63
MIN RH % (24HR TREND) 63 (+7) 54
MIN TEMP (24HR TREND) 51 (-13) 43
MAX RH % (24HR TREND) 81 (-16) 88
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) W 10-15 NW 9-11 N 10-15 N 6-8
PEAK WIND GUSTS (MPH) 27 18 21 17
PRECIP AMOUNT (IN) 0.05-0.10 0.01-0.05 0.00 0.00
11 AM MIXING HGT (FT) 2900 3200
MAX MIXING HGT (FT) 4100 3600
TRANSPORT WND (MPH) SW 25 N 18
VENT RATE (MPH-FT) 102500 64800
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN
SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE UPPER 60S. EAST
WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY, MAINLY IN THE
EVENING. LOWS IN THE MID 50S. NORTHEAST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 70S. NORTHWEST
WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE MORNING. HIGHS
AROUND 80. SOUTHEAST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTHEAST
WINDS AROUND 5 MPH.
INZ019-192130-
BENTON-
INCLUDING THE CITIES OF FOWLER AND OXFORD
555 AM EDT TUE MAY 19 2026
TODAY TONIGHT WED WED NIGHT
CLOUD COVER MCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40
MAX TEMP (24HR TREND) 80 (-2) 64
MIN RH % (24HR TREND) 64 (+2) 54
MIN TEMP (24HR TREND) 53 (-11) 44
MAX RH % (24HR TREND) 83 (-11) 84
20FT WIND AM (MPH) SW 10-15 N 10-15
20FT WIND PM (MPH) W 10-15 NW 9-10 N 10-15 N 7-8
PEAK WIND GUSTS (MPH) 27 17 21 18
PRECIP AMOUNT (IN) 0.10-0.25 0.05-0.10 0.00 0.00
11 AM MIXING HGT (FT) 2500 2900
MAX MIXING HGT (FT) 3800 3700
TRANSPORT WND (MPH) SW 23 N 18
VENT RATE (MPH-FT) 87400 66600
VENT RATE CATEGORY GOOD FAIR
FORECAST FOR DAYS 3 THROUGH 7
(WINDS ARE 20 FT LEVEL)
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS
AROUND 10 MPH.
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. EAST
WINDS AROUND 10 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. HIGHS IN THE UPPER
60S. EAST WINDS AROUND 10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN
THE MID 50S. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY
MOSTLY CLOUDY. HIGHS IN THE MID 70S. WEST WINDS
AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE MID 50S. NORTH WINDS
AROUND 5 MPH IN THE EVENING, BECOMING LIGHT.
SUNDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. LIGHT WINDS,
BECOMING NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. LIGHT
WINDS.
MONDAY
PARTLY SUNNY. A CHANCE OF SHOWERS IN THE AFTERNOON.
HIGHS AROUND 80. SOUTHEAST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. LIGHT
WINDS, BECOMING SOUTH AROUND 5 MPH AFTER MIDNIGHT.
RATZER
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