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.

A Few Clouds

39°F

4°C

Humidity 60%
Wind Speed Calm
Barometer 30.08 in (1019.2 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 1 May 8:53 pm CDT
Extended Forecast for

Sun Prairie WI

Freeze Warning May 2, 12:00am until May 2, 08:00am
Click here for hazard details and duration
Freeze Warning

  • Tonight

    Tonight: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. North wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Partly Cloudy
    then Frost

  • Saturday

    Saturday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 57. Light north wind becoming northwest 5 to 10 mph in the morning.

    High: 57 °F

    Frost then
    Partly Sunny

  • Saturday Night

    Saturday Night: Isolated showers after 4am. Mostly cloudy, with a low around 42. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 42 °F

    Partly Cloudy
    then Isolated
    Showers

  • Sunday

    Sunday: Scattered showers, mainly between 7am and 1pm. Partly sunny, with a high near 65. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    High: 65 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. West wind 5 to 10 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 73 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 43. West wind 5 to 10 mph.

    Low: 43 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 59. Northwest wind 5 to 10 mph.

    High: 59 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. North wind around 5 mph becoming calm in the evening.
Saturday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 57. Light north wind becoming northwest 5 to 10 mph in the morning.
Saturday Night
Isolated showers after 4am. Mostly cloudy, with a low around 42. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
Scattered showers, mainly between 7am and 1pm. Partly sunny, with a high near 65. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 43. West wind 5 to 10 mph.
Monday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 73. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 43. West wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 59. Northwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 38.
Wednesday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 57.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 64.
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:
8:37 pm CDT May 1, 2026
Forecast Valid:
9pm CDT May 1, 2026-6pm CDT May 8, 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