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

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Mostly Cloudy

63°F

17°C

Humidity 94%
Wind Speed SW 12 mph
Barometer 29.86 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 13 Apr 7:45 am CDT
Extended Forecast for

Hartland WI

  • Today

    Today: A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly cloudy, with a high near 74. West wind around 10 mph becoming south in the afternoon. Chance of precipitation is 20%.

    High: 74 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 63. South wind around 10 mph becoming southwest after midnight.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. Southwest wind around 10 mph. Chance of precipitation is 50%.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Low around 54. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 54 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 66. East wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 54. Southeast wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71. Southwest wind 5 to 10 mph.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. West wind around 5 mph becoming southeast after midnight.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A slight chance of showers and thunderstorms between 4pm and 5pm. Mostly cloudy, with a high near 74. West wind around 10 mph becoming south in the afternoon. Chance of precipitation is 20%.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 63. South wind around 10 mph becoming southwest after midnight.
Tuesday
A slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. Southwest wind around 10 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Low around 54. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 66. East wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 54. Southeast wind 5 to 10 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71. Southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 49. West wind around 5 mph becoming southeast after midnight.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76.
Friday Night
Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 61.
Saturday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 53.
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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:
8:01 am CDT Apr 13, 2026
Forecast Valid:
8am CDT Apr 13, 2026-6pm CDT Apr 19, 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