A winter storm will approach Wisconsin today. Skies will become increasingly cloudy with light snow developing well southwest of Madison later this afternoon; high temperatures will be in the lower 30s. Tonight will be mostly cloudy with occasional snow becoming likely; snowfall amounts of 2-5" are likely by morning with the heaviest amounts south of Madison. It will become windy with low temperatures falling to the upper teens by early Sunday morning. Sunday will be mostly cloudy, windy, and colder with snow tapering to flurries in the afternoon. Snowfall amounts of 3-5" for areas north of Madison to 5-8+" in Madison and areas to the south. High temperatures will start out near 20 degrees, but should fall through the teens in the afternoon.
By Monday, very cold weather will return to Wisconsin. Skies will be partly sunny, but it will be quite cold. Wind chills may be as cold as -5 to -15 early Monday morning with low temperatures starting around zero. High temperatures will only make it to the middle teens.
Two fast moving weather systems will then move through the area Monday night and Tuesday afternoon, bringing light snow and a brief moderation in temperatures. High temperatures on Tuesday will be in the middle 20s. Light snow and flurries will continue into Wednesday morning before ending, and it will become windy and much colder with high temperatures near 20 degrees early, with temperatures falling in the afternoon.
Thursday will be mostly sunny, but bitterly cold with low temperatures in the single digits below zero and high temperatures in the lower to middle teens. Wind chills will be as cold as -20 Thursday morning. Friday will be partly sunny and not as cold with high temperatures reaching the lower to middle 20s.
For next weekend, Saturday will be breezy and milder with high temperatures jumping into the middle 30s. Skies will be mostly cloudy with a chance for rain and snow late in the day. The precipitation may change to light snow, sleet, or freezing rain Saturday night as temperatures fall below freezing. Sunday will be mostly cloudy with a chance for light snow and high temperatures near 30 degrees.
***WINTER WEATHER ADVISORY FOR SOUTHWESTERN WISCONSIN FROM 7 PM UNTIL 9 PM SUNDAY EVENING***
***WINTER WEATHER ADVISORY FOR SOUTH-CENTRAL WISCONSIN FROM 9 PM UNTIL 9 PM SUNDAY EVENING***
***WINTER WEATHER ADVISORY FOR SOUTHEASTERN WISCONSIN FROM MIDNIGHT EARLY SUNDAY MORNING UNTIL 3 AM MONDAY MORNING***
Increasing cloudiness and not as cold with snow developing southwest of Madison late.
Wind: SW to NE 6-12 MPH
Mostly cloudy and becoming windy with occasional snow; accumulations of 2-5” by morning.
Wind: N/NE increasing to 15-25 MPH
Mostly cloudy, windy, and colder with snow tapering to flurries in the afternoon; blowing snow is likely. Total snow accumulation by evening of 3-5” north of Madison, and 5-8+” from Madison southward.
High: 19; temperatures nearly steady/slowly falling through the teens in the afternoon
Wind: N/NE 15-25 MPH
Mostly cloudy with flurries ending, then becoming partly cloudy and bitterly cold.
Wind: N 8-15 MPH diminishing late; Wind Chills: -5 to -15 by morning
Partly sunny and very cold (becoming mostly cloudy with light snow developing at night).
Wind: N to SW 5-10 MPH
Mostly cloudy, breezy, and not as cold with light snow ending, then redeveloping late in the day.
Low: 10; temperatures nearly steady/slowly rising overnight
Mostly cloudy, windy, and much colder with light snow ending; some clearing is possible late.
High: 20; temperatures nearly steady/slowly falling through the teens
Mostly sunny and bitter cold.
Low: -6; Wind Chills: -10 to -20 by morning
Partly sunny, but not as bitter cold.
Becoming mostly cloudy, breezy, and milder with a chance for light snow and rain late in the day (light snow, sleet, or freezing rain is possible at night).
Mostly cloudy with a chance for light snow or flurries.
A WINTER STORM WARNING has been issued from 7 PM until 9 PM Sunday evening for eastern Iowa and northwestern Illinois. In Iowa, this includes the counties of DELAWARE and DUBUQUE. In Illinois, this includes the counties of JO DAVIESS and STEPHENSON.
A WINTER STORM WARNING has been issued from 9 PM Saturday night until 9 PM Sunday evening for north-central and northeastern Illinois, including the counties of WINNEBAGO, BOONE, and McHENRY (this includes the Rockford and Chicago metropolitan areas).
A WINTER WEATHER ADVISORY has been issued from 7 PM until 9 PM Sunday evening for northeastern Iowa and southwestern Wisconsin. In Iowa, this includes the counties of ALLAMAKEE and CLAYTON. In Wisconsin, this includes the counties of RICHLAND, CRAWFORD, and GRANT.
A WINTER WEATHER ADVISORY has been issued from 9 PM until 9 PM Sunday evening for south-central Wisconsin, including the counties of SAUK, COLUMBIA, IOWA, DANE, LAFAYETTE, GREEN, and ROCK (this includes the Madison metropolitan area).
A WINTER WEATHER ADVISORY has been issued from midnight early Sunday until 3 AM Monday morning for much of southeastern Wisconsin, including the counties of DODGE, JEFFERSON, and WALWORTH.