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.

Fair

59°F

15°C

Humidity 82%
Wind Speed SW 7 mph
Barometer 29.90 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 1:35 am CDT
Extended Forecast for

Hartland WI

  • Overnight

    Overnight: Mostly clear, with a low around 54. West wind around 5 mph.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74. West wind 5 to 10 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly between 3pm and 5pm. Mostly cloudy, with a high near 71. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers, mainly between 7pm and 1am. Mostly cloudy, with a low around 52. Northeast wind 5 to 10 mph.

    Low: 52 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 73. Northeast wind around 10 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Calm wind becoming north around 5 mph.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 54. West wind around 5 mph.
Saturday
Sunny, with a high near 74. West wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers, mainly between 3pm and 5pm. Mostly cloudy, with a high near 71. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Sunday Night
A 40 percent chance of showers, mainly between 7pm and 1am. Mostly cloudy, with a low around 52. Northeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 73. Northeast wind around 10 mph.
Monday Night
Mostly clear, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 76. Calm wind becoming north around 5 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 54. Chance of precipitation is 60%.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 74. Chance of precipitation is 80%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A 20 percent chance of showers and thunderstorms. 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:
1:34 am CDT Jun 20, 2026
Forecast Valid:
1am CDT Jun 20, 2026-6pm CDT Jun 26, 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