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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

A Few Clouds

66°F

19°C

Humidity 40%
Wind Speed NW 9 G 20 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 4 Oct 12:53 pm CDT
Extended Forecast for

Rio WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Northwest wind 10 to 15 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 40. Northwest wind around 5 mph.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 63. Calm wind.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 46. Light south wind increasing to 5 to 10 mph after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 70. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Southwest wind 5 to 10 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. West wind 5 to 10 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. West wind around 5 mph.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Northwest wind 10 to 15 mph.
Tonight
Clear, with a low around 40. Northwest wind around 5 mph.
Monday
Sunny, with a high near 63. Calm wind.
Monday Night
Increasing clouds, with a low around 46. Light south wind increasing to 5 to 10 mph after midnight.
Tuesday
Sunny, with a high near 70. South wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 51. Southwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 70. West wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 46. West wind around 5 mph.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rio WI
 43.46°N 89.23°W (Elev. 951 ft)
Last Update:
12:31 pm CDT Oct 4, 2026
Forecast Valid:
1pm CDT Oct 4, 2026-6pm CDT Oct 10, 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