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

47°F

8°C

Humidity 86%
Wind Speed Calm
Barometer 29.85 in (1010.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 1 Jun 1:53 am CDT
Extended Forecast for

Sun Prairie WI

  • Overnight

    Overnight: Mostly clear, with a low around 45. East wind around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 75. Calm wind.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 87. Southwest wind 5 to 15 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. South wind 10 to 15 mph.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 58. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 58 °F

    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers. Partly sunny, with a high near 70. Northeast wind around 10 mph.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 45. East wind around 5 mph.
Sunday
Mostly sunny, with a high near 75. Calm wind.
Sunday Night
Partly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight.
Monday
Sunny, with a high near 87. Southwest wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 67. South wind 10 to 15 mph.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 58. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 70. Northeast wind around 10 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 55.
Thursday
A 30 percent chance of showers. Mostly cloudy, with a high near 71.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie WI
 43.17°N 89.21°W (Elev. 948 ft)
Last Update:
1:37 am CDT Jun 1, 2025
Forecast Valid:
2am CDT Jun 1, 2025-6pm CDT Jun 7, 2025
 
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