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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.

Overcast

51°F

11°C

Humidity 45%
Wind Speed E 14 mph
Barometer 30.33 in (1027.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 21 May 10:53 am CDT
Extended Forecast for

Sun Prairie WI

  • Today

    Today: A slight chance of sprinkles. Mostly cloudy, with a high near 57. East wind 10 to 15 mph.

    High: 57 °F

    Slight Chance
    Sprinkles

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. East wind around 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64. East wind 10 to 15 mph.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Cloudy, with a low around 48. East wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 70. Northeast wind around 5 mph becoming west in the afternoon.

    High: 70 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm.

    Low: 50 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 76. Calm wind becoming west around 5 mph in the morning.

    High: 76 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. West wind around 5 mph becoming calm.

    Low: 52 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
A slight chance of sprinkles. Mostly cloudy, with a high near 57. East wind 10 to 15 mph.
Tonight
Mostly cloudy, with a low around 43. East wind around 10 mph.
Friday
Partly sunny, with a high near 64. East wind 10 to 15 mph.
Friday Night
Showers likely, mainly after 1am. Cloudy, with a low around 48. East wind 10 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 70. Northeast wind around 5 mph becoming west in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 76. Calm wind becoming west around 5 mph in the morning.
Sunday Night
Mostly clear, with a low around 52. West wind around 5 mph becoming calm.
Memorial Day
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie WI
 43.2°N 89.21°W (Elev. 997 ft)
Last Update:
10:33 am CDT May 21, 2026
Forecast Valid:
11am CDT May 21, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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