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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

A Few Clouds

81°F

27°C

Humidity 44%
Wind Speed S 13 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Oct 1:53 pm CDT
Extended Forecast for

Rio WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. South wind around 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 56. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80. South wind around 10 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 61. South wind 5 to 10 mph.

    Low: 61 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 82. Southwest wind around 10 mph.

    High: 82 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 62. South wind 5 to 10 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Northwest wind around 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 51. North wind around 5 mph.

    Low: 51 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 82. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 56. South wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 80. South wind around 10 mph.
Sunday Night
Increasing clouds, with a low around 61. South wind 5 to 10 mph.
Columbus Day
Mostly sunny, with a high near 82. Southwest wind around 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 62. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 72. Northwest wind around 10 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 51. North wind around 5 mph.
Wednesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 66.
Wednesday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 48.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rio WI
 43.43°N 89.23°W (Elev. 1033 ft)
Last Update:
1:34 pm CDT Oct 10, 2026
Forecast Valid:
2pm CDT Oct 10, 2026-6pm CDT Oct 16, 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