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.

Overcast

44°F

7°C

Humidity 76%
Wind Speed NE 7 mph
Barometer 30.10 in (1020.0 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 3 Apr 1:53 pm CDT
Extended Forecast for

Sun Prairie WI

  • This Afternoon

    This Afternoon: A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 50. Northeast wind around 5 mph.

    High: 50 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers after 4am. Low around 37. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Showers
    Likely and
    Breezy then
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly between 7am and 8am. Mostly cloudy, with a high near 49. Breezy, with a southeast wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.

    High: 49 °F

    Chance
    Showers then
    Mostly Cloudy
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. West wind around 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. West wind around 10 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. North wind 5 to 15 mph.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers, mainly after 4pm. Mostly cloudy, with a high near 50. Northeast wind around 5 mph.
Tonight
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers after 4am. Low around 37. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers, mainly between 7am and 8am. Mostly cloudy, with a high near 49. Breezy, with a southeast wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 32. West wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 34. West wind around 10 mph.
Monday
Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 21. North wind 5 to 15 mph.
Tuesday
Sunny, with a high near 45.
Tuesday Night
A chance of snow showers before 4am, then a chance of rain and snow showers. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 64. Breezy.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44. Breezy.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie WI
 43.17°N 89.24°W (Elev. 965 ft)
Last Update:
1:35 pm CDT Apr 3, 2026
Forecast Valid:
2pm CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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