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.

Partly Cloudy

55°F

13°C

Humidity 47%
Wind Speed NE 13 G 18 mph
Barometer 30.30 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 20 May 3:45 pm CDT
Extended Forecast for

Hartland WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Northeast wind 10 to 15 mph.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of sprinkles after 10am. Partly sunny, with a high near 57. East wind around 10 mph.

    High: 57 °F

    Chance
    Sprinkles

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. East wind around 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 61. East wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Showers likely. Cloudy, with a low around 47. East wind 5 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 69. East wind around 5 mph becoming west in the afternoon.

    High: 69 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.

    High: 75 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. Northeast wind 10 to 15 mph.
Thursday
A chance of sprinkles after 10am. Partly sunny, with a high near 57. East wind around 10 mph.
Thursday Night
Mostly cloudy, with a low around 44. East wind around 5 mph.
Friday
Mostly cloudy, with a high near 61. East wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Showers likely. Cloudy, with a low around 47. East wind 5 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 69. East wind around 5 mph becoming west in the afternoon.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 50. East wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 75. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 51.
Memorial Day
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 82.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
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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:
3:12 pm CDT May 20, 2026
Forecast Valid:
3pm CDT May 20, 2026-6pm CDT May 27, 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