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 and Breezy

45°F

7°C

Humidity 57%
Wind Speed W 21 G 29 mph
Barometer 29.86 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 18 Apr 12:45 pm CDT
Extended Forecast for

Hartland WI

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 46 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 31. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 31 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A slight chance of snow showers before 9am, then a slight chance of rain showers. Partly sunny, with a high near 46. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 51. Calm wind becoming south around 5 mph in the afternoon.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39. South wind around 10 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. West wind around 10 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42. West wind around 5 mph becoming northeast in the evening.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 31. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Sunday
A slight chance of snow showers before 9am, then a slight chance of rain showers. Partly sunny, with a high near 46. Northwest wind 5 to 15 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 27. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 51. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 39. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 70. West wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 42. West wind around 5 mph becoming northeast in the evening.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 70.
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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:
1:21 pm CDT Apr 18, 2026
Forecast Valid:
1pm CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation