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Weekly Forecast

Today will be partly sunny, and it will be very warm and more humid with a slight chance of showers and thunderstorms, mainly later in the day and in areas west of Madison. High temperatures will be in the middle 80s, with heat index values near 90 degrees.

Tonight will be mostly cloudy, mild, and muggy with patchy fog and a chance of showers and thunderstorms. Temperatures will fall to the middle 70s by late evening; overnight low temperatures will be in the upper 60s by morning.

On Monday, skies will be mostly cloudy, and it will be warm and humid with scattered showers and thunderstorms. High temperatures will reach the lower to the middle 80s The solar eclipse will begin Monday in Madison at 11:50 a.m. and should reach its maximum at 1:15 p.m. The eclipse will end at 2:38 p.m. At the eclipse maximum, 85% of the sun will be covered. Unfortunately, widespread cloud cover may mean that we will see little of the eclipse in southern Wisconsin.

A cold front will move through southern Wisconsin later Monday night with showers and thunderstorms. There is the potential for isolated severe thunderstorms to develop along the cold front, with an outside chance of a squall line of severe thunderstorms developing.

Behind the cold front, Tuesday will be mostly cloudy, breezy, and cooler with showers and thunderstorms ending; some sunshine may return in the afternoon. High temperatures will be in the upper 70s.

Pleasant late August weather will continue over Wisconsin from Wednesday through Friday with mostly sunny skies, and pleasant temperatures. High temperatures will be in the middle 70s.

Next Saturday will be partly sunny and continued pleasant with high temperatures in the middle 70s. Sunday will be partly sunny and continued mild with a chance of showers and thunderstorms, mainly in the afternoon. High temperatures will reach the upper 70s.

Near-normal temperatures are expected for the start of the following week. Monday will be variably cloudy with a chance of showers and thunderstorms. Skies will be partly sunny on Tuesday and Wednesday. High temperatures will be in the upper 70s for both days.

TODAY:

Partly sunny, very warm, and more humid with a slight chance of showers and thunderstorms, mainly late in the day.

High: 85; Heat Index: 87 to 92

Wind: S 8-15 MPH

TONIGHT:

Mostly cloudy, mild, and muggy with patchy fog and a chance of showers and thunderstorms.

Low: 67

Wind: S/SW 5-10 MPH

MONDAY:

Mostly cloudy, warm, and humid with scattered showers and thunderstorms.

High: 82

Wind: SW 8-15 MPH

MONDAY NIGHT:

Mostly cloudy and mild with patchy fog and scattered showers and thunderstorms.

Low: 65

Wind: SW 6-12 MPH to N late

TUESDAY:

Mostly cloudy, breezy, and cooler with scattered showers and thunderstorms ending; some afternoon sunshine is possible.

High: 77

Wind: N/NW 10-20 MPH

WEDNESDAY:

Mostly sunny and pleasant.

Low: 55

High: 75

THURSDAY:

Mostly sunny and continued pleasant.

Low: 51

High: 74

FRIDAY:

Mostly sunny and continued pleasant.

Low: 53

High: 75

SATURDAY:

Partly sunny and pleasantly mild.

Low: 56

High: 76

SUNDAY:

Partly sunny and mild with a chance of showers and thunderstorms, mainly in the afternoon.

Low: 57

High: 77

MONDAY:

Variable cloudiness with a chance of showers and thunderstorms.

Low: 60

High: 77

TUESDAY:

Partly sunny and pleasant.

Low: 56

High: 77

WEDNESDAY:

Partly sunny and continued pleasant.

Low: 55

High: 77

NOTES:

Severe Weather Outlook for Monday

MARGINAL RISK for extreme southern Minnesota, all of Iowa, the northwestern third of Illinois, and the southern third of Wisconsin (south of a Rochester, MN to Wisconsin Rapids to Manitowoc line). Threats: high winds, hail, locally heavy rainfall. Timing: later Monday afternoon (Minnesota/Iowa), Monday night (Wisconsin/Illinois). Coverage: a few severe thunderstorms; low possibility of a squall line developing overnight Monday night/early Tuesday morning. Confidence: low/medium.

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