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.

Fair

59°F

15°C

Humidity 69%
Wind Speed Vrbl 3 mph
Barometer 30.00 in (1015.5 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 11 Oct 2:53 am CDT
Extended Forecast for

Waterloo WI

  • Overnight

    Overnight: Clear, with a low around 55. South wind 5 to 10 mph.

    Low: 55 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80. South wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Sunday Night

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

    Low: 61 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 85. Southwest wind 5 to 10 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. West wind around 10 mph becoming northwest in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Partly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 55. South wind 5 to 10 mph.
Sunday
Sunny, with a high near 80. South wind 5 to 10 mph.
Sunday Night
Increasing clouds, with a low around 61. South wind around 5 mph.
Columbus Day
Mostly sunny, with a high near 85. Southwest wind 5 to 10 mph.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 74. West wind around 10 mph becoming northwest in the afternoon.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.
Wednesday Night
A 20 percent chance of showers 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 58. Breezy.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waterloo WI
 43.19°N 88.98°W (Elev. 850 ft)
Last Update:
2:36 am CDT Oct 11, 2026
Forecast Valid:
3am CDT Oct 11, 2026-6pm CDT Oct 17, 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