National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Heat for the East; Excessive Rainfall for the Southwest; Severe Weather for the Center of the Nation

Extreme HeatRisk impacts will expand from the Midwest into the Mid-Atlantic and Northeast today. This level of HeatRisk is known for being rare and/or long duration with little to no overnight relief, and affects anyone without effective cooling and/or adequate hydration. Severe weather potential continues from the Great Lakes to the Central Plains today. Heavy rainfall for Southwest on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed SW 9 G 18 mph
Barometer 30.06 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 23 Jun 6:45 am CDT
Extended Forecast for

Waukesha WI

Heat Advisory June 23, 06:47am until June 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 23, 06:47am until June 23, 07:00pm

    NOW until 7:00pm Mon

    Heat Advisory

  • Today

    High: 94 °F

    Hot

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am. Increasing clouds, with a low around 70. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 82. West wind around 5 mph becoming northeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Southeast wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South wind around 5 mph becoming southwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny and hot, with a high near 94. Heat index values as high as 98. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Showers and thunderstorms likely, mainly before 1am. Increasing clouds, with a low around 70. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 82. West wind around 5 mph becoming northeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7pm. Cloudy, with a low around 62. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. Southeast wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. South wind around 5 mph becoming southwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Waukesha WI
 43.01°N 88.24°W (Elev. 922 ft)
Last Update:
4:08 am CDT Jun 23, 2025
Forecast Valid:
6am CDT Jun 23, 2025-6pm CDT Jun 29, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation