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.

Fog/Mist

40°F

4°C

Humidity 93%
Wind Speed SE 10 mph
Barometer 29.82 in (1010.6 mb)
Dewpoint 38°F (3°C)
Visibility 3.00 mi
Wind Chill34°F (1°C)
Last update 27 Dec 5:53 pm CST
Extended Forecast for

Deerfield WI

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

  • Tonight

    Tonight: Areas of drizzle between 9pm and 3am. Widespread fog, mainly after 10pm. Otherwise, cloudy, with a low around 40. Southeast wind 5 to 10 mph.

    Low: 40 °F

    Areas Drizzle
    and Fog

  • Sunday

    Sunday: Rain, mainly after 9am. Widespread fog, mainly before 11am. High near 50. Light and variable wind becoming northwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain and Fog

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all snow after 8pm. Widespread blowing snow, mainly after 3am. Low around 14. Wind chill values between -5 and 5. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 14 °F

    Rain/Snow and
    Patchy
    Blowing Snow
    then Snow and
    Blowing Snow

  • Monday

    Monday: Snow likely before noon. Widespread blowing snow, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 22. Wind chill values between -5 and 5. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 22 °F

    Snow Likely
    and Blowing
    Snow

  • Monday Night

    Monday Night: Patchy blowing snow before 8pm. Partly cloudy, with a low around 7. Blustery, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 7 °F

    Patchy
    Blowing Snow
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 24. West wind around 10 mph.

    High: 24 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

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

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 26. Northwest wind 10 to 15 mph.

    High: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 6.

    Low: 6 °F

    Chance Snow

Detailed Forecast

Tonight
Areas of drizzle between 9pm and 3am. Widespread fog, mainly after 10pm. Otherwise, cloudy, with a low around 40. Southeast wind 5 to 10 mph.
Sunday
Rain, mainly after 9am. Widespread fog, mainly before 11am. High near 50. Light and variable wind becoming northwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Snow, possibly mixed with rain, becoming all snow after 8pm. Widespread blowing snow, mainly after 3am. Low around 14. Wind chill values between -5 and 5. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Monday
Snow likely before noon. Widespread blowing snow, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 22. Wind chill values between -5 and 5. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Patchy blowing snow before 8pm. Partly cloudy, with a low around 7. Blustery, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 24. West wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 18. West wind around 10 mph.
Wednesday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 26. Northwest wind 10 to 15 mph.
Wednesday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 6.
New Year's Day
Mostly sunny, with a high near 15.
Thursday Night
Mostly clear, with a low around 3.
Friday
Mostly sunny, with a high near 20.
Friday Night
Mostly cloudy, with a low around 11.
Saturday
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deerfield WI
 43.06°N 89.07°W (Elev. 899 ft)
Last Update:
5:41 pm CST Dec 27, 2025
Forecast Valid:
5pm CST Dec 27, 2025-6pm CST Jan 3, 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