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

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Fair

54°F

12°C

Humidity 57%
Wind Speed NW 8 mph
Barometer 30.08 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 8 Oct 9:35 am CDT
Extended Forecast for

Jefferson WI

  • Today

    Today: Sunny, with a high near 68. West wind 5 to 10 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers between 2pm and 4pm, then a slight chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 71. Light southeast wind increasing to 5 to 10 mph in the morning.  Chance of precipitation is 40%.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. Southeast wind 5 to 10 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

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

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. South wind 5 to 10 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75. South wind around 5 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55. South wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: A 20 percent chance of showers after 1pm.  Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 68. West wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 45. Calm wind.
Friday
A chance of showers between 2pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 71. Light southeast wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 57. Southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 80. South wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 58. South wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 75. South wind around 5 mph.
Sunday Night
Mostly clear, with a low around 55. South wind around 5 mph becoming calm.
Columbus Day
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Jefferson WI
 43.01°N 88.81°W (Elev. 833 ft)
8:36 am CDT Oct 8, 2026
9am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
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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