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.

Mostly Cloudy

64°F

18°C

Humidity 65%
Wind Speed NW 8 G 17 mph
Barometer 29.73 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 18 Jun 11:15 am CDT
Extended Forecast for

Jefferson WI

  • Today

    Today: Mostly sunny, with a high near 72. Northwest wind around 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. West wind 5 to 10 mph.

    Low: 53 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 76. Northwest wind 5 to 10 mph.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly between 11pm and 1am. Partly cloudy, with a low around 54. West wind around 5 mph becoming calm.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 77. West wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 73. Light east wind increasing to 5 to 10 mph in the morning.

    High: 73 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 50. Northeast wind 5 to 10 mph.

    Low: 50 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 72. Northwest wind around 10 mph.
Tonight
Mostly clear, with a low around 53. West wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 76. Northwest wind 5 to 10 mph.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly between 11pm and 1am. Partly cloudy, with a low around 54. West wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 77. West wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 73. Light east wind increasing to 5 to 10 mph in the morning.
Sunday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 50. Northeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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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:
11:12 am CDT Jun 18, 2026
Forecast Valid:
11am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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