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Weekly Forecast

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

Sunday will be partly sunny, very warm, and humid with a chance of showers and thunderstorms. High temperatures will be in the lower to the middle 80s. Afternoon heat index reading will be near 90 degrees in some areas.

A cold front will arrive Sunday night with some relief from the warm and humid weather for a couple of days. Monday will be partly sunny, cooler, and less humid with high temperatures in the middle 70s. Tuesday will be partly sunny and warmer with high temperatures in the lower 80s.

Humidity levels will begin to increase later on Tuesday night, leading to a chance of a shower or thunderstorm. Wednesday will be variably cloudy, warm, and more humid with scattered showers and thunderstorms. High temperatures will be in the lower to the middle 80s, with heat index values in some areas near 90 degrees. Thursday will be variably cloudy, warm, and humid with a chance of showers and thunderstorms; high temperatures will be in the lower 80s.

Friday and Saturday will be partly sunny and warm, but a little less humid with high temperatures in the lower 80s. Sunday will be partly sunny and warm, as well as being a little more humid with high temperatures in the middle 80s.

A chance of showers and thunderstorms will develop on Sunday night; Monday will be variably cloudy, warm, and humid with scattered showers and thunderstorms; high temperatures will be in the lower 80s. Tuesday will be partly sunny and warm, but a little less humid with high temperatures in the lower 80s.

TONIGHT:

Partly cloudy and mild with patchy fog and a chance of showers and thunderstorms, especially north and east of Madison.

Low: 68

Wind: NE to W 5-10 MPH

SUNDAY:

Partly sunny, warm, and humid with a chance of showers and thunderstorms.

High: 83

Wind: NW 8-15 MPH

SUNDAY NIGHT:

Partly cloudy and cooler.

Low: 58

Wind: N 6-12 MPH

MONDAY:

Partly sunny, cooler, and less humid.

High: 74

Wind: NE 6-12 MPH

TUESDAY:

Partly sunny and warm (a chance of a shower or thunderstorm at night).

Low: 56

High: 82

WEDNESDAY:

Variable cloudiness, warm, and humid with scattered showers and thunderstorms.

Low: 62

High: 83

THURSDAY:

Variable cloudiness, warm, and humid with a chance of showers and thunderstorms.

Low: 65

High: 83

FRIDAY:

Partly sunny and warm.

Low: 61

High: 82

SATURDAY:

Partly sunny and continued warm.

Low: 60

High: 82

SUNDAY:

Partly sunny, warm, and a little more humid (becoming mostly cloudy with scattered showers and thunderstorms developing at night).

Low: 63

High: 84

MONDAY:

Variable cloudiness, warm, and humid with scattered showers and thunderstorms.

Low: 68

High: 82

TUESDAY:

Partly sunny and continued warm.

Low: 63

High: 82

NOTES:

Severe Weather Outlook for Saturday:

SLIGHT RISK for northeastern Minnesota, extreme southeastern Illinois, and the northeastern two-thirds of Wisconsin (north of a Grantsburg to Tomah to Oshkosh to Manitowoc line); MARGINAL RISK for the rest of the northeastern half of Minnesota, the southern half of Illinois, and the rest of Wisconsin (except for the extreme south). Timing: tonight. Threats: high winds, hail, brief heavy rainfall. Coverage: a few severe thunderstorms. Confidence: low.

Severe Weather Outlook for Sunday:

SLIGHT RISK for central Illinois; MARGINAL RISK for extreme southeastern Iowa, the rest of Illinois, and the eastern third of Wisconsin (east of a Darlington to Wausau to Iron Mountain, MI line). Timing: Sunday afternoon, early Sunday evening. Threats: hail, high winds, brief heavy rainfall. Coverage: isolated. Confidence: low.

Severe Weather Outlook for Tuesday night and Wednesday:

There may be the threat for a few severe thunderstorms for Minnesota, northern Iowa, and mainly northwestern Wisconsin Tuesday night moving into eastern Iowa, northern Illinois, and mainly southeastern Wisconsin on Wednesday. Confidence: low/medium.

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