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.

Overcast

45°F

7°C

Humidity 86%
Wind Speed NW 12 G 21 mph
Barometer 29.63 in (1003.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 18 Apr 1:53 am CDT
Extended Forecast for

Monona WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 37. Northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. West wind 5 to 15 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 49. West wind 5 to 10 mph.

    High: 49 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind around 10 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. West wind 5 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 37. Northwest wind around 15 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny, with a high near 48. Northwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 32. West wind 5 to 15 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 49. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 55. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 44. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 72. West wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 78.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monona WI
 43.07°N 89.34°W (Elev. 850 ft)
Last Update:
1:22 am CDT Apr 18, 2026
Forecast Valid:
2am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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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