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

58°F

14°C

Humidity 67%
Wind Speed NW 9 G 18 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 19 May 7:53 pm CDT
Extended Forecast for

Monona WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. North wind 5 to 15 mph.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. North wind around 10 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. East wind 5 to 10 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 62. East wind around 10 mph.

    High: 62 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. East wind around 10 mph.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 62. East wind 10 to 15 mph.

    High: 62 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 47. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 70. Northeast wind around 5 mph becoming northwest in the afternoon.

    High: 70 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 44. North wind 5 to 15 mph.
Wednesday
Mostly sunny, with a high near 63. North wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 41. East wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 62. East wind around 10 mph.
Thursday Night
Mostly cloudy, with a low around 44. East wind around 10 mph.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 62. East wind 10 to 15 mph.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 47. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly cloudy, with a high near 70. Northeast wind around 5 mph becoming northwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 53.
Memorial Day
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monona WI
 43.05°N 89.34°W (Elev. 850 ft)
Last Update:
5:57 pm CDT May 19, 2026
Forecast Valid:
8pm CDT May 19, 2026-6pm CDT May 26, 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