It will be variably cloudy, very mild and humid with scattered showers and thunderstorms developing tonight as a cold front approaches from the northwest. There is a potential for some of the thunderstorms to become severe, with hail, high winds, and heavy rainfall as the main threats. Temperatures will fall to the middle 70s by late evening, falling to near 70 degrees by morning.
Monday will remain warm and humid with a better chance for scattered showers and thunderstorms in the afternoon and evening as Sunday night's cold front becomes stationary over southern Wisconsin, and a low pressure system and cold front approach from the west. As a result, some of these thunderstorms could be severe as well through Monday evening. Highs on Monday will reach the lower to middle 80s with heat index values near 90. The cold front will move through Monday night, with showers and thunderstorms ending with the passage of the front.
Behind the cold fr! ont, temperatures will fall off, and humidity levels should decrease as well. Tuesday will be partly sunny, but therer is a chance for some showers to develop, mainly in the afternoon. Highs will be in the upper 70s. Wednesday will be partly sunny and even cooler, with a slight chance for afternoon showers. Highs will be in the lower 70s.
The weather looks to be very nice for Thursday and the Friday, the Fourth of July. It should be mostly sunny with highs in the middle 70s on Thursday, turning a little warmer on Friday with highs back up to around 80 degrees.
A Little more heat and humidity returns next weekend, with highs in the lower to middle 80s, leading to at least a chance of thunderstorms Saturday and Sunday.
TONIGHT:
Variable cloudiness, very mild, and muggy with scattered showers and thunderstorms developing; a severe thunderstorm is possible with hail, high winds, and heavy rainfall.Low: 69
Wind: S 8-15 MPH
MONDAY:
Variable cloudiness, breezy, warm, and humid with scattered showers and thunderstorms, especially in the afternoon; a few thunderstorms may be severe.
High: 83
Wind: S/SW 10-20 MPH
MONDAY NIGHT:
Mostly cloudy and turning cooler with scattered showers and thunderstorms, especially in the evening; a few thunderstorms may be severe early.
Low: 58
Wind: W/NW 8-15 MPH
TUESDAY:
Partly sunny, a little cooler and less humid; a chance for mainly afternoon showers.
High: 78
Wind: NW 8-15 MPH
WEDNESDAY:
Partly sunny and cooler with a chance for afternoon showers.
Low: 56
High: 71
THURSDAY:
Mostly sunny and pleasant.
Low: 53
High: 75
FOURTH OF JULY (FRIDAY):
Mostly sunny and a little warmer.
Low: 54
High: 80
SATURDAY:
Partly sunny and warm with a slight chance for showers and thunderstorms.
Low: 59
High: 83
SUNDAY:
Partly sunny, very warm, and more humid with a chance for showers and thunderstorms.
Low: 65
High: 85; Heat Index: 87 to 92
NOTES:
The Storm Prediction Center says that there is a MODERATE RISK of severe thunderstorms over the southern half of Iowa for tonight. There is a SLIGHT RISK of severe thunderstorms for tonight for extreme southeastern Minnesota, the rest of Iowa, the northwestern two-thirds of Illinois, and the western two-thirds of Wisconsin (west of an Eagle River to Beaver Dam to Lake Geneva line). A warm and humi! d air mass will continue across the Midwest. A cold front from western Wisconsin will move eastward overnight, while the front's southern end becomes stationary from central Wisconsin back into southern Minnesota or northern Iowa. Thunderstorms will develop along this front, some of which may be severe. Hail, high winds, and heavy rainfall are the main threats. The thunderstorms should weaken as they move eastward into the rest of Wisconsin overnight, but still may be capable of gusty winds, small hail, and heavy rainfall.
There is a SLIGHT RISK of severe thunderstorms for Monday and Monday night for the southeastern half of Iowa, the northwestern two-thirds of Illinois, and the southern half of Wisconsin (south of a Rochester, MN to Green Bay line). A stationary front will extend across northern Iowa into southern Wisconsin from low pressure located over Iowa. As the low pressure system moves eastward along the stationary front, a cold front will move through Iowa into southern Wisconsin and northern Illinois by ev! ening. Thunderstorms will develop along both fronts, and should become severe by Monday afternoon. Hail, high winds, heavy rainfall, and a few tornadoes are possible with the severe thunderstorms. The highest severe weather potential will be in the warmest and most humid air, probably from southern Iowa into northern Illinois. The severe weather threat will end with the passage of the cold front Monday night.
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