National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

A Few Clouds

31°F

-1°C

Humidity 47%
Wind Speed N 12 G 22 mph
Barometer 30.54 in (1035.3 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 27 Mar 9:53 pm CDT
Extended Forecast for

Cottage Grove WI

  • Tonight

    Tonight: Clear, with a low around 22. Northwest wind 5 to 10 mph becoming light west after midnight.

    Low: 22 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 50. Light southwest wind increasing to 10 to 15 mph in the morning.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Southwest wind 10 to 15 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. Southwest wind around 10 mph.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. South wind around 5 mph.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74. Southeast wind 5 to 10 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Rain Likely

  • Tuesday

    Tuesday: A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.

    Low: 33 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Clear, with a low around 22. Northwest wind 5 to 10 mph becoming light west after midnight.
Saturday
Sunny, with a high near 50. Light southwest wind increasing to 10 to 15 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 36. Southwest wind 10 to 15 mph.
Sunday
Partly sunny, with a high near 64. Southwest wind around 10 mph.
Sunday Night
Partly cloudy, with a low around 42. South wind around 5 mph.
Monday
Mostly sunny, with a high near 74. Southeast wind 5 to 10 mph.
Monday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of rain, then rain likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.
Wednesday
A chance of snow before 7am, then a slight chance of snow after 1pm. Partly sunny, with a high near 46. Chance of precipitation is 30%.
Wednesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 29.
Thursday
A chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cottage Grove WI
 43.09°N 89.19°W (Elev. 919 ft)
Last Update:
9:34 pm CDT Mar 27, 2026
Forecast Valid:
10pm CDT Mar 27, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation