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.

Fair

59°F

15°C

Humidity 100%
Wind Speed W 3 mph
Barometer 29.89 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Jun 2:35 am CDT
Extended Forecast for

Jefferson WI

  • Overnight

    Overnight: Areas of fog. Otherwise, partly cloudy, with a low around 58. Calm wind becoming west around 5 mph.

    Low: 58 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 75. Northwest wind 5 to 10 mph.

    High: 75 °F

    Areas Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53. North wind around 5 mph becoming calm after midnight.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 74. East wind 5 to 10 mph.

    High: 74 °F

    Decreasing
    Clouds

  • Friday Night

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

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. East wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 61. East wind 5 to 10 mph.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86. Southeast wind 10 to 15 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of fog. Otherwise, partly cloudy, with a low around 58. Calm wind becoming west around 5 mph.
Thursday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 75. Northwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 53. North wind around 5 mph becoming calm after midnight.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 74. East wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 54. East wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 80. East wind 5 to 10 mph.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 61. East wind 5 to 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86. Southeast wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Mostly sunny and hot, with a high near 93.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
Mostly sunny and hot, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.
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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:
2:37 am CDT Jun 25, 2026
Forecast Valid:
2am CDT Jun 25, 2026-6pm CDT Jul 1, 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