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

68°F

20°C

Humidity 49%
Wind Speed S 5 mph
Barometer 29.61 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 Mar 7:45 pm CDT
Extended Forecast for

Hartland WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Southwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of sprinkles between noon and 2pm. Mostly cloudy, with a high near 42. North wind 10 to 15 mph.

    High: 42 °F

    Chance
    Sprinkles

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. North wind 5 to 10 mph.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 44. Calm wind becoming north around 5 mph.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 30. Calm wind becoming south around 5 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 53. Southwest wind 5 to 10 mph.

    High: 53 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. South wind around 5 mph becoming east after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 52. East wind 5 to 10 mph.

    High: 52 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. Southwest wind 5 to 10 mph becoming northeast after midnight.
Sunday
A chance of sprinkles between noon and 2pm. Mostly cloudy, with a high near 42. North wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 24. North wind 5 to 10 mph.
Monday
Sunny, with a high near 44. Calm wind becoming north around 5 mph.
Monday Night
Increasing clouds, with a low around 30. Calm wind becoming south around 5 mph after midnight.
Tuesday
Mostly cloudy, with a high near 53. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 35. South wind around 5 mph becoming east after midnight.
Wednesday
A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 52. East wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A 20 percent chance of rain before 1pm. Partly sunny, with a high near 56.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 42.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hartland WI
 43.1°N 88.36°W (Elev. 1001 ft)
Last Update:
8:32 pm CDT Mar 21, 2026
Forecast Valid:
8pm CDT Mar 21, 2026-6pm CDT Mar 28, 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