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

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Overcast

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.36 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Last update 17 Jun 6:45 pm CDT
Extended Forecast for

Hartland WI

  • Tonight

    Tonight: Scattered showers and thunderstorms before 2am, then isolated showers between 2am and 5am. Mostly cloudy, with a low around 54. South wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.

    Low: 54 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Thursday

    Thursday: Isolated showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 72. Northwest wind 10 to 15 mph. Chance of precipitation is 10%.

    High: 72 °F

    Isolated
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 8pm. Mostly clear, with a low around 50. West wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 73. Northwest wind 5 to 10 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 53. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 76. Light west wind increasing to 5 to 10 mph in the morning.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 71. Light northeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms before 2am, then isolated showers between 2am and 5am. Mostly cloudy, with a low around 54. South wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 50%.
Thursday
Isolated showers before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 72. Northwest wind 10 to 15 mph. Chance of precipitation is 10%.
Thursday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 8pm. Mostly clear, with a low around 50. West wind 5 to 10 mph. Chance of precipitation is 20%.
Juneteenth
Sunny, with a high near 73. Northwest wind 5 to 10 mph.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 53. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 76. Light west wind increasing to 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 71. Light northeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Wednesday
A 40 percent chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hartland WI
 43.1°N 88.36°W (Elev. 1001 ft)
Last Update:
6:31 pm CDT Jun 17, 2026
Forecast Valid:
7pm CDT Jun 17, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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