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

36°F

2°C

Humidity 97%
Wind Speed NW 9 mph
Barometer 29.44 in (997.7 mb)
Dewpoint 35°F (2°C)
Visibility 8.00 mi
Wind Chill29°F (-2°C)
Last update 28 Dec 3:53 pm CST
Extended Forecast for

Sun Prairie WI

Winter Weather Advisory December 28, 06:00pm until December 29, 12:00pm
Wind Advisory December 28, 06:00pm until December 29, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory

  • This Afternoon

    This Afternoon: Rain. Areas of fog. High near 41. Northwest wind 10 to 15 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Rain and
    Areas Fog

  • Tonight

    Tonight: Rain and snow, becoming all snow after 8pm. Patchy blowing snow after 9pm. Low around 15. Wind chill values between zero and 10. Windy, with a west wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 15 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 7am. Areas of blowing snow before 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 19. Wind chill values between -5 and zero. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 19 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Patchy blowing snow before 8pm. Partly cloudy, with a low around 7. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 7 °F

    Patchy
    Blowing Snow
    then Mostly
    Clear

  • Tuesday

    Tuesday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 27. West wind 5 to 10 mph.

    High: 27 °F

    Partly Sunny
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. West wind 10 to 15 mph.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon. Mostly cloudy, with a temperature falling to around 17 by 5pm. Northwest wind around 10 mph.

    High: 25 °F⇓

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around 5. Northwest wind 5 to 10 mph.

    Low: 5 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • New Year's Day

    New Year's Day: Sunny, with a high near 14.

    High: 14 °F

    Sunny

Detailed Forecast

This Afternoon
Rain. Areas of fog. High near 41. Northwest wind 10 to 15 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain and snow, becoming all snow after 8pm. Patchy blowing snow after 9pm. Low around 15. Wind chill values between zero and 10. Windy, with a west wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Monday
Snow likely, mainly before 7am. Areas of blowing snow before 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 19. Wind chill values between -5 and zero. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday Night
Patchy blowing snow before 8pm. Partly cloudy, with a low around 7. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 27. West wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 18. West wind 10 to 15 mph.
Wednesday
A 30 percent chance of snow after noon. Mostly cloudy, with a temperature falling to around 17 by 5pm. Northwest wind around 10 mph.
Wednesday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 5. Northwest wind 5 to 10 mph.
New Year's Day
Sunny, with a high near 14.
Thursday Night
Partly cloudy, with a low around 4.
Friday
Partly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Mostly sunny, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sun Prairie WI
 43.17°N 89.24°W (Elev. 965 ft)
Last Update:
3:16 pm CST Dec 28, 2025
Forecast Valid:
4pm CST Dec 28, 2025-6pm CST Jan 4, 2026
 
Forecast Discussion
 
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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