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.

Light Rain Fog/Mist

55°F

13°C

Humidity 100%
Wind Speed SW 3 mph
Barometer 29.64 in (1003.7 mb)
Dewpoint 55°F (13°C)
Visibility 6.00 mi
Last update 7 Mar 3:53 am CST
Extended Forecast for

Sun Prairie WI

  • Overnight

    Overnight: Showers and possibly a thunderstorm, mainly before 5am, then scattered showers and thunderstorms after 5am. Steady temperature around 57. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers

  • Saturday

    Saturday: Scattered showers, mainly before 7am. Mostly cloudy, with a temperature falling to around 41 by 5pm. Southwest wind around 15 mph becoming west in the morning. Chance of precipitation is 30%.

    High: 55 °F⇓

    Scattered
    Showers then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 33. West wind 10 to 15 mph becoming southwest after midnight.

    Low: 33 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 60. Southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 69. Southwest wind 5 to 15 mph becoming west in the afternoon.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Northwest wind 5 to 10 mph becoming east after midnight.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers after noon. Increasing clouds, with a high near 56. East wind 10 to 15 mph.

    High: 56 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Rain likely before midnight, then rain and snow likely. Cloudy, with a low around 32. Chance of precipitation is 70%.

    Low: 32 °F

    Rain Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Showers and possibly a thunderstorm, mainly before 5am, then scattered showers and thunderstorms after 5am. Steady temperature around 57. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Scattered showers, mainly before 7am. Mostly cloudy, with a temperature falling to around 41 by 5pm. Southwest wind around 15 mph becoming west in the morning. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 33. West wind 10 to 15 mph becoming southwest after midnight.
Sunday
Sunny, with a high near 60. Southwest wind around 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 45. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 69. Southwest wind 5 to 15 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 38. Northwest wind 5 to 10 mph becoming east after midnight.
Tuesday
A 50 percent chance of showers after noon. Increasing clouds, with a high near 56. East wind 10 to 15 mph.
Tuesday Night
Rain likely before midnight, then rain and snow likely. Cloudy, with a low around 32. Chance of precipitation is 70%.
Wednesday
A chance of rain and snow before noon, then a chance of snow. Cloudy, with a high near 41. Chance of precipitation is 40%.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 23.
Thursday
Partly sunny, with a high near 45.
Thursday Night
A chance of rain and snow. Cloudy, with a low around 33. Chance of precipitation is 50%.
Friday
A slight chance of rain and snow. Mostly cloudy, with a high near 50. Chance of precipitation is 20%.
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 89.21°W (Elev. 948 ft)
Last Update:
3:47 am CST Mar 7, 2026
Forecast Valid:
3am CST Mar 7, 2026-6pm CDT Mar 13, 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