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

36°F

2°C

Humidity 100%
Wind Speed NW 5 mph
Barometer 29.69 in (1006.2 mb)
Dewpoint 36°F (2°C)
Visibility 1.00 mi
Wind Chill32°F (0°C)
Last update 26 Dec 8:53 am CST
Extended Forecast for

4 Miles NNW Sun Prairie WI

Dense Fog Advisory until December 26, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until December 26, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Today

    High: 40 °F

    Areas Dense
    Fog then
    Cloudy

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, cloudy, with a low around 33. Northwest wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Cloudy then
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 44. Southeast wind 5 to 10 mph.

    High: 44 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of rain. Cloudy, with a low around 39. Southeast wind 5 to 10 mph becoming northeast after midnight.

    Low: 39 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after noon. Cloudy, with a high near 43. Northwest wind 5 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Chance Rain
    then Rain
    Likely

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all snow after 9pm. Mostly cloudy, with a low around 16. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 16 °F

    Rain/Snow
    Likely and
    Blustery then
    Chance Snow
    and Windy

  • Monday

    Monday: A 20 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 21. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 21 °F

    Slight Chance
    Snow and
    Windy then
    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Today
Areas of dense fog before noon. Otherwise, cloudy, with a high near 40. Light and variable wind becoming northwest 5 to 10 mph in the morning.
Tonight
Patchy fog after 1am. Otherwise, cloudy, with a low around 33. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 44. Southeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of rain. Cloudy, with a low around 39. Southeast wind 5 to 10 mph becoming northeast after midnight.
Sunday
Rain likely, mainly after noon. Cloudy, with a high near 43. Northwest wind 5 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain and snow likely, becoming all snow after 9pm. Mostly cloudy, with a low around 16. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Monday
A 20 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 21. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 10. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 21.
Wednesday Night
Mostly cloudy, with a low around 5.
New Year's Day
Mostly sunny, with a high near 16.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Sun Prairie WI
 43.24°N 89.27°W (Elev. 1014 ft)
Last Update:
8:52 am CST Dec 26, 2025
Forecast Valid:
8am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation