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

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Fair

59°F

15°C

Humidity 76%
Wind Speed NW 9 mph
Barometer 29.95 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 20 Jun 7:15 am CDT
Extended Forecast for

3 Miles SW Sullivan WI

  • Today

    Today: Sunny, with a high near 76. Northwest wind around 10 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A slight chance of showers before 1pm, then a chance of showers after 3pm. Mostly cloudy, with a high near 72. Light and variable wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 40%.

    High: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 52. Northeast wind 5 to 10 mph.

    Low: 52 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 75. North wind around 10 mph.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Calm wind becoming north around 5 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 75. Chance of precipitation is 80%.

    High: 75 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Today
Sunny, with a high near 76. Northwest wind around 10 mph.
Tonight
Increasing clouds, with a low around 52. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of showers before 1pm, then a chance of showers after 3pm. Mostly cloudy, with a high near 72. Light and variable wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 52. Northeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 75. North wind around 10 mph.
Monday Night
Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming north around 5 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. South wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 75. Chance of precipitation is 80%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 20%.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 53.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Sullivan WI
 42.98°N 88.63°W (Elev. 840 ft)
Last Update:
5:26 am CDT Jun 20, 2026
Forecast Valid:
7am CDT Jun 20, 2026-6pm CDT Jun 26, 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