National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Mostly Cloudy

86°F

30°C

Humidity 65%
Wind Speed W 3 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 2 Sep 1:53 pm CDT
Extended Forecast for

Rio WI

  • This Afternoon

    This Afternoon: Scattered sprinkles before 3pm, then scattered sprinkles after 4pm. Partly sunny, with a high near 86. West wind around 5 mph.

    High: 86 °F

    Scattered
    Sprinkles

  • Tonight

    Tonight: A chance of rain and thunderstorms before 3am, then a chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 69. North wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 69 °F

    Scattered
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 84. Southeast wind around 5 mph becoming north in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Low around 67. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Heavy Rain

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 85. Southeast wind around 5 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. Calm wind becoming east around 5 mph.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the morning.

    High: 83 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63. East wind around 5 mph becoming calm after midnight.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 82.

    High: 82 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Scattered sprinkles before 3pm, then scattered sprinkles after 4pm. Partly sunny, with a high near 86. West wind around 5 mph.
Tonight
A chance of rain and thunderstorms before 3am, then a chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 69. North wind around 5 mph becoming calm. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 84. Southeast wind around 5 mph becoming north in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Low around 67. Southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 85. Southeast wind around 5 mph. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66. Calm wind becoming east around 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the morning.
Saturday Night
Partly cloudy, with a low around 63. East wind around 5 mph becoming calm after midnight.
Sunday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 82.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Labor Day
A 20 percent chance of showers. Partly sunny, with a high near 80.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rio WI
 43.46°N 89.23°W (Elev. 951 ft)
Last Update:
1:34 pm CDT Sep 2, 2026
Forecast Valid:
2pm CDT Sep 2, 2026-6pm CDT Sep 8, 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