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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.

Mostly Cloudy

63°F

17°C

Humidity 50%
Wind Speed NW 8 mph
Barometer 29.85 in (1010.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 20 Mar 3:53 pm CDT
Extended Forecast for

Sun Prairie WI

  • Tonight

    Tonight: Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 38. North wind around 5 mph becoming southeast after midnight.

    Low: 38 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 68. Southwest wind 5 to 15 mph.

    High: 68 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 45. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 45 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. North wind 5 to 10 mph.

    Low: 27 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 47. North wind around 5 mph.

    High: 47 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 33. East wind 5 to 10 mph becoming south after midnight.

    Low: 33 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. South wind around 10 mph becoming west in the afternoon.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 38. North wind around 5 mph becoming southeast after midnight.
Saturday
Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 68. Southwest wind 5 to 15 mph.
Saturday Night
Partly cloudy, with a low around 44. Southwest wind 5 to 10 mph becoming north after midnight.
Sunday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 45. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. North wind 5 to 10 mph.
Monday
Sunny, with a high near 47. North wind around 5 mph.
Monday Night
Increasing clouds, with a low around 33. East wind 5 to 10 mph becoming south after midnight.
Tuesday
Mostly cloudy, with a high near 55. South wind around 10 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 60.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie WI
 43.17°N 89.21°W (Elev. 948 ft)
Last Update:
3:33 pm CDT Mar 20, 2026
Forecast Valid:
4pm CDT Mar 20, 2026-6pm CDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation