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.

Fog/Mist

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 30.04 in (1016.9 mb)
Dewpoint 61°F (16°C)
Visibility 6.00 mi
Last update 18 Sep 1:53 am CDT
Extended Forecast for

Cottage Grove WI

  • Overnight

    Overnight: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming east around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 3am. Increasing clouds, with a low around 61. East wind around 5 mph.

    Low: 61 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. East wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 80 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. South wind around 5 mph. Chance of precipitation is 50%.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. South wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 61. Calm wind.
Thursday
Sunny, with a high near 85. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers before 3am. Increasing clouds, with a low around 61. East wind around 5 mph.
Friday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 80. East wind 5 to 10 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. South wind around 5 mph. Chance of precipitation is 50%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. South wind 5 to 10 mph. Chance of precipitation is 50%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 59.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 56.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Cottage Grove WI
 43.09°N 89.19°W (Elev. 919 ft)
Last Update:
2:38 am CDT Sep 18, 2025
Forecast Valid:
2am CDT Sep 18, 2025-6pm CDT Sep 24, 2025
 
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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