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.

Fair

61°F

16°C

Humidity 93%
Wind Speed NW 3 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 27 Aug 3:53 am CDT
Extended Forecast for

Lake Mills WI

  • Today

    Today: Mostly sunny, with a high near 81. Light northwest wind increasing to 5 to 10 mph in the morning.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Southeast wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Calm wind becoming south around 5 mph.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Calm wind becoming south around 5 mph after midnight.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 80. South wind 5 to 10 mph.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South wind around 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 81. Light northwest wind increasing to 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 57. Southeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 82. Calm wind becoming south around 5 mph.
Friday Night
Partly cloudy, with a low around 61. Calm wind becoming south around 5 mph after midnight.
Saturday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 80. South wind 5 to 10 mph.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Mills WI
 43.08°N 88.89°W (Elev. 850 ft)
Last Update:
4:33 am CDT Aug 27, 2026
Forecast Valid:
4am CDT Aug 27, 2026-6pm CDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation