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

Hurricane Isaias to Approach the Northern Gulf Coast on Friday

Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Fair

66°F

19°C

Humidity 35%
Wind Speed W 8 mph
Barometer 30.10 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 8 Oct 12:15 pm CDT
Extended Forecast for

Portage WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 67. West wind 5 to 10 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 70. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 70 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 10 percent chance of showers before 7pm. Mostly clear, with a low around 55. Southeast wind 5 to 10 mph.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 81 °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: Sunny, with a high near 76. South wind around 5 mph.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. South wind around 5 mph becoming calm.

    Low: 56 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 67. West wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 44. Calm wind.
Friday
A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 70. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Friday Night
A 10 percent chance of showers before 7pm. Mostly clear, with a low around 55. Southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 81. South wind 5 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
Sunny, with a high near 76. South wind around 5 mph.
Sunday Night
Mostly clear, with a low around 56. South wind around 5 mph becoming calm.
Columbus Day
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 74.
Monday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 49.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portage WI
 43.55°N 89.49°W (Elev. 787 ft)
Last Update:
12:26 pm CDT Oct 8, 2026
Forecast Valid:
12pm CDT Oct 8, 2026-6pm CDT Oct 14, 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