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

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Fair

27°F

-3°C

Humidity 92%
Wind Speed Calm
Barometer 30.42 in (1031.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 15 Nov 7:53 am CST
Extended Forecast for

Sun Prairie WI

  • Today

    Today: Sunny, with a high near 49. Calm wind becoming west around 5 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. Calm wind becoming southwest around 5 mph.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 51. Southwest wind 5 to 10 mph.

    High: 51 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. Southwest wind 5 to 10 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56. Southwest wind 5 to 10 mph.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36. South wind around 10 mph.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 57. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 57 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 45. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Partly Cloudy
    and Breezy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 58.

    High: 58 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. Calm wind becoming west around 5 mph.
Tonight
Mostly clear, with a low around 27. Calm wind becoming southwest around 5 mph.
Monday
Increasing clouds, with a high near 51. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 33. Southwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 56. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 36. South wind around 10 mph.
Wednesday
Mostly sunny, with a high near 57. South wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 45. Breezy, with a south wind 15 to 20 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 39.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 58.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 47. Breezy.
Saturday
Rain likely. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie WI
 43.17°N 89.24°W (Elev. 965 ft)
Last Update:
7:36 am CST Nov 15, 2026
Forecast Valid:
8am CST Nov 15, 2026-6pm CST Nov 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation