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

Hazardous Weather Conditions

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Partly Cloudy

62°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 62°F (17°C)
Visibility 7.00 mi
Last update 6 Sep 1:35 am CDT
Extended Forecast for

Jefferson WI

  • Overnight

    Overnight: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Light northeast wind becoming east 5 to 10 mph in the morning.

    High: 79 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. East wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 79. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 59. Southeast wind 5 to 10 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 84. South wind 5 to 10 mph.

    High: 84 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 70. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 83. West wind 10 to 15 mph.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 60. Calm wind.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 79. Light northeast wind becoming east 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 56. East wind around 5 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 79. Light east wind becoming southeast 5 to 10 mph in the morning.
Monday Night
Increasing clouds, with a low around 59. Southeast wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 84. South wind 5 to 10 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 70. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Partly sunny, with a high near 83. West wind 10 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 58.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Jefferson WI
 43.01°N 88.81°W (Elev. 833 ft)
Last Update:
1:21 am CDT Sep 6, 2026
Forecast Valid:
1am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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