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

68°F

20°C

Humidity 65%
Wind Speed E 10 mph
Barometer 29.88 in (1011.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 21 Jun 2:53 pm CDT
Extended Forecast for

Waterloo WI

  • This Afternoon

    This Afternoon: Showers likely, mainly after 5pm. Cloudy, with a high near 71. Southeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 55. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 76. North wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely after 1am. Mostly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57. West wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Showers likely, mainly after 5pm. Cloudy, with a high near 71. Southeast wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 55. East wind around 5 mph becoming calm. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 76. North wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph.
Tuesday Night
Showers likely after 1am. Mostly cloudy, with a low around 56. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57. West wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 78.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo WI
 43.21°N 88.97°W (Elev. 823 ft)
Last Update:
2:42 pm CDT Jun 21, 2026
Forecast Valid:
3pm CDT Jun 21, 2026-6pm CDT Jun 28, 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