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.

Overcast

37°F

3°C

Humidity 86%
Wind Speed NW 7 mph
Barometer 29.87 in (1012.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 26 Dec 4:53 pm CST
Extended Forecast for

Cottage Grove WI

  • Tonight

    Tonight: Patchy fog after 9pm. Otherwise, cloudy, with a low around 34. Calm wind becoming southeast around 5 mph after midnight.

    Low: 34 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before noon. Otherwise, cloudy, with a high near 42. Southeast wind 5 to 10 mph.

    High: 42 °F

    Areas Fog
    then Cloudy

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Patchy fog between 9pm and 1am. Otherwise, cloudy, with a low around 39. Southeast wind 5 to 10 mph becoming light after midnight.

    Low: 39 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: Rain, mainly after noon. High near 45. Light and variable wind becoming northwest 10 to 15 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Snow likely, possibly mixed with rain before midnight, then a chance of snow. Cloudy, with a low around 15. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 15 °F

    Rain/Snow
    Likely and
    Blustery then
    Chance Snow
    and Windy

  • Monday

    Monday: A 40 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 20. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 40 mph.

    High: 20 °F

    Windy. Chance
    Snow then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 9. 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: 9 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon. Partly sunny, with a high near 26. West wind around 10 mph.

    High: 26 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 9pm. Otherwise, cloudy, with a low around 34. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Areas of fog before noon. Otherwise, cloudy, with a high near 42. Southeast wind 5 to 10 mph.
Saturday Night
A 40 percent chance of rain. Patchy fog between 9pm and 1am. Otherwise, cloudy, with a low around 39. Southeast wind 5 to 10 mph becoming light after midnight.
Sunday
Rain, mainly after noon. High near 45. Light and variable wind becoming northwest 10 to 15 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Snow likely, possibly mixed with rain before midnight, then a chance of snow. Cloudy, with a low around 15. Windy, with a northwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Monday
A 40 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 20. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 40 mph.
Monday Night
Partly cloudy, with a low around 9. 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. Partly sunny, with a high near 26. West wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 14.
Wednesday
Partly sunny, with a high near 23.
Wednesday Night
A 20 percent chance of snow. Partly cloudy, with a low around 1.
New Year's Day
Sunny, with a high near 11.
Thursday Night
Mostly clear, with a low around -1.
Friday
Mostly sunny, with a high near 16.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cottage Grove WI
 43.09°N 89.19°W (Elev. 919 ft)
Last Update:
5:12 pm CST Dec 26, 2025
Forecast Valid:
5pm CST Dec 26, 2025-6pm CST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation