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.

Fog/Mist

61°F

16°C

Humidity 100%
Wind Speed SE 3 mph
Barometer 29.74 in
Dewpoint 61°F (16°C)
Visibility 5.00 mi
Last update 15 Apr 5:45 am CDT
Extended Forecast for

Hartland WI

  • Today

    Today: Showers and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 70. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 3am, then a chance of showers and thunderstorms after 3am. Low around 53. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely before 4pm, then a chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind around 5 mph becoming north in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. North wind around 5 mph becoming calm.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 73. South wind 5 to 15 mph.

    High: 73 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 45. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 45 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 57. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 57 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of rain showers before 10pm, then a slight chance of snow showers. Partly cloudy, with a low around 31. West wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 70. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm, mainly before 3am, then a chance of showers and thunderstorms after 3am. Low around 53. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Showers and thunderstorms likely before 4pm, then a chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind around 5 mph becoming north in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 48. North wind around 5 mph becoming calm.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 73. South wind 5 to 15 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 45. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 57. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of rain showers before 10pm, then a slight chance of snow showers. Partly cloudy, with a low around 31. West wind 10 to 15 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Hartland WI
 43.1°N 88.36°W (Elev. 1001 ft)
Last Update:
3:41 am CDT Apr 15, 2026
Forecast Valid:
6am CDT Apr 15, 2026-6pm CDT Apr 21, 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