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

48°F

9°C

Humidity 58%
Wind Speed SE 9 mph
Barometer 30.23 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 11 Apr 7:45 pm CDT
Extended Forecast for

Hartland WI

  • Tonight

    Tonight: Scattered showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 45. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers
    Likely

  • Sunday

    Sunday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 71. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. 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

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 4am, then a slight chance of showers. Patchy fog after 1am. Otherwise, cloudy, with a low around 59. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: Partly sunny, with a high near 77. Southwest wind around 10 mph.

    High: 77 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Partly Sunny
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 56. Southwest wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Southwest wind 10 to 15 mph. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 45. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 71. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before 4am, then a slight chance of showers. Patchy fog after 1am. Otherwise, cloudy, with a low around 59. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 77. Southwest wind around 10 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 40%.
Tuesday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 56. Southwest wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Southwest wind 10 to 15 mph. Chance of precipitation is 50%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 73.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 75.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 56.
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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:
8:21 pm CDT Apr 11, 2026
Forecast Valid:
8pm CDT Apr 11, 2026-6pm CDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation