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Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Fair

52°F

11°C

Humidity 97%
Wind Speed Calm
Barometer 30.19 in (1022.2 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 23 Jun 4:53 am CDT
Extended Forecast for

Sun Prairie WI

  • Today

    Today: Increasing clouds, with a high near 76. Calm wind.

    High: 76 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A slight chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. South wind around 5 mph. Chance of precipitation is 50%.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly after 2pm. High near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 75. Northwest wind around 5 mph.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. Northeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76. East wind around 5 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. East wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 76. Calm wind.
Tonight
A slight chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. South wind around 5 mph. Chance of precipitation is 50%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly after 2pm. High near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 75. Northwest wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 54. Northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 76. East wind around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56. East wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie WI
 43.17°N 89.24°W (Elev. 965 ft)
Last Update:
2:36 am CDT Jun 23, 2026
Forecast Valid:
5am CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation