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

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

54°F

12°C

Humidity 88%
Wind Speed E 7 mph
Barometer 30.03 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 23 May 9:15 pm CDT
Extended Forecast for

2 Miles SSW Oconomowoc Lake WI

  • Tonight

    Tonight: Scattered showers before 10pm, then scattered showers and thunderstorms between 10pm and 4am, then isolated showers after 4am. Patchy fog after 1am. Otherwise, cloudy, with a low around 53. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 40%.

    Low: 53 °F

    Scattered
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, 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 55. West wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the morning.

    High: 85 °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: Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83. Light east wind increasing to 5 to 10 mph in the afternoon.

    High: 83 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Scattered showers before 10pm, then scattered showers and thunderstorms between 10pm and 4am, then isolated showers after 4am. Patchy fog after 1am. Otherwise, cloudy, with a low around 53. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 40%.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 78. West wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 55. West wind around 5 mph becoming calm.
Memorial Day
Sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the morning.
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
Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm.
Wednesday
Partly sunny, with a high near 83. Light east wind increasing to 5 to 10 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Oconomowoc Lake WI
 43.08°N 88.48°W (Elev. 899 ft)
Last Update:
8:32 pm CDT May 23, 2026
Forecast Valid:
9pm CDT May 23, 2026-6pm CDT May 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation