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

Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Mostly Cloudy

7°F

-14°C

Humidity 80%
Wind Speed Calm
Barometer 30.34 in (1029.7 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 8 Dec 8:53 am CST
Extended Forecast for

Rio WI

  • Today

    Today: Mostly cloudy, with a high near 22. South wind 5 to 10 mph.

    High: 22 °F

    Mostly Cloudy

  • Tonight

    Tonight: Snow likely, mainly before 3am. Cloudy, with a temperature falling to near 17 by 8pm, then rising to around 25 during the remainder of the night. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 17 °F⇑

    Snow Likely

  • Tuesday

    Tuesday: A slight chance of snow before 1pm, then a slight chance of rain between 1pm and 3pm, then a chance of rain and snow after 3pm. Cloudy, with a high near 34. West wind 10 to 15 mph. Chance of precipitation is 50%.

    High: 34 °F

    Cloudy then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow, possibly mixed with rain. Low around 27. South wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 27 °F

    Rain/Snow

  • Wednesday

    Wednesday: A 50 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 31. Blustery, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 31 °F

    Chance Snow
    and Blustery
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 3. West wind 5 to 10 mph.

    Low: 3 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Partly sunny, with a high near 18. West wind around 5 mph.

    High: 18 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 2. West wind 5 to 10 mph.

    Low: 2 °F

    Chance Snow

  • Friday

    Friday: A 40 percent chance of snow. Mostly cloudy, with a high near 14.

    High: 14 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 22. South wind 5 to 10 mph.
Tonight
Snow likely, mainly before 3am. Cloudy, with a temperature falling to near 17 by 8pm, then rising to around 25 during the remainder of the night. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
A slight chance of snow before 1pm, then a slight chance of rain between 1pm and 3pm, then a chance of rain and snow after 3pm. Cloudy, with a high near 34. West wind 10 to 15 mph. Chance of precipitation is 50%.
Tuesday Night
Snow, possibly mixed with rain. Low around 27. South wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Wednesday
A 50 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 31. Blustery, with a north wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 3. West wind 5 to 10 mph.
Thursday
A 20 percent chance of snow after noon. Partly sunny, with a high near 18. West wind around 5 mph.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 2. West wind 5 to 10 mph.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 14.
Friday Night
Mostly cloudy, with a low around -7.
Saturday
Mostly sunny and cold, with a high near 6.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -7.
Sunday
Mostly sunny, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rio WI
 43.46°N 89.26°W (Elev. 919 ft)
Last Update:
8:12 am CST Dec 8, 2025
Forecast Valid:
9am CST Dec 8, 2025-6pm CST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation