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Weekly Forecast

A stationary front in Illinois will begin to return northward as a warm front tonight into Thursday morning. There will be areas of fog and more scattered showers and thunderstorms tonight; some thunderstorms may have hail and heavy rain. Low temperatures will fall into the lower 60s.

Thursday will start out mostly cloudy with showers and thunderstorms ending early, then skies will turn partly sunny. It will be breezy, warmer, and more humid with high temperatures in the middle 80s. Showers and thunderstorms will redevelop again late in the day or at night as another cold front moves through Wisconsin; some thunderstorms may become severe with high winds, hail, and heavy rainfall. Overnight low temperatures will drop into the lower 60s again.

Behind the front, Friday will be mostly cloudy, breezy, and much cooler with a slight chance of showers mainly in the morning. High temperatures will be in the middle 60s.

The weather will be pleasant, but cool next weekend. Saturday, the first day of fall, will be mostly sunny with high temperatures in the middle 60s. Sunday will be mostly sunny and not quite as cool with high temperatures in the lower 70s. Low temperatures both Saturday and Sunday will be in the middle 40s.

Monday will be partly sunny and breezy with a slight chance of showers; high temperatures will be in the middle 70s.

A strong early fall storm system will affect Wisconsin on Tuesday. Skies will be mostly cloudy with scattered showers and thunderstorms developing along with windy conditions. High temperatures will be in the middle 70s. After the passage of a cold front late in the day on Tuesday, Wednesday will be partly sunny, breezy, and cooler with high temperatures falling back into the upper 60s.

Cooler weather stays through the end of the week. Thursday will be partly sunny and breezy with a chance of showers; high temperatures will be in the middle 60s. Friday will also be partly cloudy and breezy. High temperatures will be in the middle 60s.

Next weekend will be quite chilly; high temperatures both Saturday and Sunday will be in the lower 60s. Saturday will be variably cloudy with a chance of showers. Skies will be partly cloudy Sunday.

***FLASH FLOOD WATCH FOR AREAS WEST OF LONE ROCK THROUGH 1 PM THURSDAY AFTERNOON***

TONIGHT:

Mostly cloudy and milder with areas of fog and scattered showers and thunderstorms; some thunderstorms later tonight may have hail and heavy rainfall.

Low: 63

Wind: E/SE 8-15 MPH

THURSDAY:

Mostly cloudy with showers and thunderstorms ending in the morning, then becoming partly sunny, breezy, warmer, and more humid with a chance of showers and thunderstorms late in the day, mainly well north of Madison; some thunderstorms may be severe with high winds, hail, and heavy rainfall.

High: 84

Wind: S 10-20 MPH

THURSDAY NIGHT:

Mostly cloudy and breezy with scattered showers and thunderstorms; a few thunderstorms may be severe through around midnight.

Low: 61

Wind: S 10-20 MPH to W toward morning

FRIDAY:

Mostly cloudy, breezy, and much cooler with a slight chance of showers, mainly in the morning.

High: 66

Wind: N/NW 10-20 MPH

SATURDAY:

Mostly sunny and quite cool.

Low: 44

High: 66

SUNDAY:

Mostly sunny and not quite as cool.

Low: 45

High: 71

MONDAY:

Partly sunny and breezy with a slight chance of showers.

Low: 54

High: 74

TUESDAY:

Mostly cloudy, windy, and mild with scattered showers and thunderstorms.

Low: 58

High: 74

WEDNESDAY:

Partly sunny, breezy, and cooler.

Low: 50

High: 67

THURSDAY:

Variable cloudiness, breezy, and cool with a chance of showers.

Low: 46

High: 65

FRIDAY:

Partly sunny, breezy, and continued cool.

Low: 48

High: 65

SATURDAY:

Variable cloudiness, breezy, and chilly with a chance of showers.

Low: 42

High: 62

SUNDAY:

Partly sunny, breezy, and continued chilly.

Low: 40

High: 60

NOTES:

A FLASH FLOOD WATCH is in effect until 1 PM Thursday afternoon for northeastern Iowa, and west-central and southwestern Wisconsin. In Iowa, this includes the counties of ALLAMAKEE and CLAYTON. In Wisconsin, this includes the counties of MONROE, JUNEAU, ADAMS, VERNON, RICHLAND, CRAWFORD, and GRANT (this includes the La Crosse metropolitan area).

Severe weather outlook for Wednesday: MARGINAL RISK for the southern quarter of Minnesota, the northern two-thirds of Iowa, extreme northwestern Illinois, and west-central, southwestern, and south-central Wisconsin (west of a Hudson to Beaver Dam to Janesville to Monroe line). Threats: high winds, hail, heavy rainfall. Timing: this evening. Coverage: isolated severe thunderstorms.

Severe weather outlook for Thursday: ENHANCED RISK for east-central and southeastern Minnesota, and west-central through northeastern Wisconsin (south of a Cumberland to Iron Mountain, MI line and north of a La Crosse to Green Bay line); SLIGHT RISK for the rest of the southeastern third of Minnesota, most of the northern half of Iowa, extreme northwestern Illinois, and much of the rest of Wisconsin, except for southeastern quarter and the extreme northwest (the area is south of a Hayward to Ironwood MI line and north of a Dubuque, IA to Manitowoc line); MARGINAL RISK for the rest of the southeastern half of Minnesota, the rest of Iowa, the northern quarter of Illinois, and the rest of Wisconsin. Threats: high winds, hail, heavy rainfall, isolated tornadoes (mainly over east-central Iowa and west-central through north-central Wisconsin. Timing: mid-afternoon through Thursday night. Coverage: a few severe thunderstorms; a squall line of severe thunderstorms is possible with a higher wind damage potential over east-central Minnesota through northeastern Wisconsin.

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