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

Wet and Cool in the East this Memorial Day Weekend; Well Above Normal Temperatures in the Northern Plains

A wet Memorial Day weekend is in store for the East, with widespread rainfall of 1 to more than 2 inches expected from the Gulf Coast to southern New England. Well above normal temperatures are forecast to build across the northern Plains. Another round of heavy to excessive rainfall is expected to impact the western Gulf Coast this weekend with Flood Watches in effect. Read More >

Hazardous Weather Conditions

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Mostly Cloudy

68°F

20°C

Humidity 63%
Wind Speed E 9 mph
Barometer 29.98 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 23 May 5:15 pm CDT
Extended Forecast for

Helenville WI

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms. Mostly sunny, with a high near 72. Southeast wind around 5 mph. Chance of precipitation is 20%.

    High: 72 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly between 8pm and 4am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 54. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 40%.

    Low: 54 °F

    Scattered
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78. West wind 5 to 10 mph.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Sunday Night

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

    Low: 56 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 86. Southwest wind 5 to 10 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58. South wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm.

    Low: 59 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers. Partly sunny, with a high near 84.

    High: 84 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Mostly sunny, with a high near 72. Southeast wind around 5 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms, mainly between 8pm and 4am. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 54. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 40%.
Sunday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 56. West wind around 5 mph becoming calm in the evening.
Memorial Day
Sunny, with a high near 86. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 58. South wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 84.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Helenville WI
 43°N 88.69°W (Elev. 850 ft)
Last Update:
2:46 pm CDT May 23, 2026
Forecast Valid:
5pm CDT May 23, 2026-6pm CDT May 30, 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