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

Isaias Expected To Be A Strong Hurricane Approaching The Northern Gulf Coast

Isaias is expected to strengthen and be a strong hurricane when it approaches the northern Gulf Coast on Friday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts Friday into Saturday. Isaias will bring heavy rainfall to the northern Gulf Coast and much of the Southeast U.S. Friday into the weekend. Read More >

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Fair

55°F

13°C

Humidity 64%
Wind Speed Calm
Barometer 29.93 in (1013.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 7 Oct 9:53 pm CDT
Extended Forecast for

Waterloo WI

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Northwest wind around 5 mph.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. Northwest wind 5 to 10 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45. West wind around 5 mph becoming calm.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 71. Light south wind increasing to 5 to 10 mph in the morning.

    High: 71 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Southeast wind around 10 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. South wind 5 to 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 76. South wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 48. Northwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 68. Northwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 45. West wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 71. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 58. Southeast wind around 10 mph.
Saturday
Sunny, with a high near 80. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 57. South wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 76. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 56.
Columbus Day
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 73.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 45.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 60.
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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:
9:51 pm CDT Oct 7, 2026
Forecast Valid:
9pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation