National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Fair

26°F

-3°C

Humidity 84%
Wind Speed SW 7 mph
Barometer 30.04 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 12 Jan 8:15 am CST
Extended Forecast for

Portage WI

  • Today

    Today: Mostly sunny, with a high near 42. West wind 5 to 10 mph.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 31. Southwest wind 5 to 10 mph.

    Low: 31 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain. Partly sunny, with a high near 46. West wind 10 to 15 mph.

    High: 46 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 21. West wind 10 to 15 mph.

    Low: 21 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 27 °F

    Blustery.
    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10. North wind 5 to 15 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Mostly sunny, with a high near 25. Northwest wind around 5 mph becoming south in the afternoon.

    High: 25 °F

    Sunny then
    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 20. South wind around 5 mph. Chance of precipitation is 60%.

    Low: 20 °F

    Snow Likely

  • Friday

    Friday: Snow likely. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.

    High: 32 °F

    Snow Likely

Detailed Forecast

Today
Mostly sunny, with a high near 42. West wind 5 to 10 mph.
Tonight
A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 31. Southwest wind 5 to 10 mph.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 46. West wind 10 to 15 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 21. West wind 10 to 15 mph.
Wednesday
A 40 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 10. North wind 5 to 15 mph.
Thursday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 25. Northwest wind around 5 mph becoming south in the afternoon.
Thursday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 20. South wind around 5 mph. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 12.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 19.
Saturday Night
Mostly cloudy, with a low around 1.
Sunday
Partly sunny, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portage WI
 43.57°N 89.49°W (Elev. 797 ft)
Last Update:
7:37 am CST Jan 12, 2026
Forecast Valid:
8am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation