Skies will be mostly clear tonight, and it will be pleasant. Patchy fog is possible overnight. Temperatures will fall to the lower 70s by late evening; overnight low temperatures will fall to the lower 60s by morning.
Tuesday will be partly sunny, very warm, and more humid. High temperatures will be in the upper 80s, with heat index values climbing to the lower 90s. Showers and thunderstorms will develop later Tuesday night.
Wednesday will be mostly cloudy, breezy, and humid, but not quite as warm with scattered showers and thunderstorms as a warm front passes through Wisconsin. High temperatures will be in the lower to the middle 80s, with heat index values in the upper 80s.
Some of the hottest air of the summer will arrive for the rest of the week. Thursday and Friday will be partly sunny, breezy, hot and humid with high temperatures in the middle 90s. Heat index values will reach the triple digits, perhaps as high as 107 degrees.
For the weekend, Saturday will be partly sunny, hot and humid with high temperatures in the lower 90s. Heat index values will be around 100 degrees. There will be a chance of showers and thunderstorms, mainly late in the day and at night as a weak cold front moves through Wisconsin. Sunday will be partly sunny and very warm, but a little less humid. High temperatures will be in the upper 80s, and heat index values will be in the lower 90s.
Monday will be partly sunny, very warm, and even a little less humid with high temperatures in the middle 80s, and heat index values in the upper 80s. Skies will turn mostly cloudy on Monday night as there will be a chance of showers and thunderstorms.
***EXCESSIVE HEAT WATCH FROM 7 AM THURSDAY UNTIL 7 PM FRIDAY EVENING FOR AREAS WEST OF RICHLAND CENTER***
***EXCESSIVE HEAT WATCH FROM NOON THURSDAY UNTIL 7 PM FRIDAY EVENING FOR AREAS EAST OF RICHLAND CENTER***
TONIGHT:
Mostly clear and pleasant; patchy fog is possible.
Low: 61
Wind: Light and Variable
TUESDAY:
Partly sunny, very warm, and more humid.
High: 87; Heat Index: 89 to 94
Wind: S/SW 6-12 MPH
TUESDAY NIGHT:
Mostly cloudy, mild, and muggy with scattered showers and thunderstorms developing overnight; patchy fog is possible.
Low: 69
Wind: S 5-10 MPH
WEDNESDAY:
Mostly cloudy, breezy, and humid, but not quite as warm with scattered showers and thunderstorms.
High: 83; Heat Index: 86 to 91
Wind: S 8-15 MPH
THURSDAY:
Partly sunny, breezy, hot, and humid.
Low: 72
High: 94; Heat Index: 101 to 106
FRIDAY:
Partly sunny, breezy, hot, and humid.
Low: 75
High: 95; Heat Index: 102 to 107
SATURDAY:
Partly sunny, hot, and humid with a chance of showers and thunderstorms, mainly late in the day or at night.
Low: 74
High: 92; Heat Index: 98 to 103
SUNDAY:
Partly sunny, very warm, and a little less humid.
Low: 67
High: 87; Heat Index: 89 to 94
MONDAY:
Partly sunny, very warm, and a little less humid (becoming mostly cloudy with a chance of showers and thunderstorms at night).
Low: 64
High: 85; Heat Index: 85 to 90
NOTES:
An EXCESSIVE HEAT WATCH has been issued for from 7 AM Thursday morning until 7 PM Friday evening for eastern and northeastern Iowa, northwestern Illinois, and southwestern and west-central Wisconsin. In Iowa, this includes the counties of ALLAMAKEE, CLAYTON, DELAWARE, and DUBUQUE. In Illinois, this includes the counties of JO DAVIESS and STEPHENSON. In Wisconsin, this includes the counties of MONROE, JUNEAU, ADAMS, VERNON, RICHLAND, CRAWFORD, IOWA, and GRANT (this includes the La Crosse metropolitan area).
An EXCESSIVE HEAT WATCH has been issued from noon Thursday until 7 PM Friday evening for north-central and northeastern Illinois, and east-central, south-central, and southeastern Wisconsin. In Illinois, this includes the counties of WINNEBAGO, BOONE, and McHENRY (this includes the Rockford and Chicago metropolitan areas). In Wisconsin, this includes the counties of MARQUETTE, GREEN LAKE, SAUK, COLUMBIA, DODGE, IOWA, DANE, JEFFERSON, LAFAYETTE, GREEN, ROCK, and WALWORTH (this includes the Madison and Milwaukee metropolitan areas).
The Storm Prediction Center says that there is a MARGINAL RISK of severe thunderstorms for Tuesday and Tuesday night for all of Minnesota, all of Iowa, western and southern Illinois, and the western quarter of Wisconsin (west of an Ashland to Black River Falls to Monroe line). As an increasingly hot and humid air mass develops over the center of the country, thunderstorms should develop on the edge of the heat in the Dakotas and western Minnesota by late Tuesday afternoon and evening, possibly heading southeastward into Iowa, western Illinois, and western Wisconsin overnight. Isolated severe thunderstorms may be possible, with high winds, hail and heavy rainfall as the main threats.
There is a MARGINAL RISK of severe thunderstorms for Wednesday and Wednesday night all but far southwestern Minnesota, the northeastern half of Iowa, the northern half of Illinois, and all of Wisconsin. As the hot and humid air expands to the north and east, the area for potential thunderstorm development will also shift to the north and east. Thunderstorms may be possible early on Wednesday morning from southern Minnesota and Iowa into western Wisconsin and western Illinois. Additional thunderstorms may develop by late Wednesday afternoon and evening from northern Minnesota into eastern Iowa and Wisconsin, heading southeastward into Illinois by later Wednesday night. Isolated severe thunderstorms may also be possible, with high winds, hail, and heavy rainfall as the main threats.
Interactive radar
Radar images (Mobile radar images)
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