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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

59°F

15°C

Humidity 82%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 30 Jul 5:45 am CDT
Extended Forecast for

Pewaukee WI

  • Today

    Today: Patchy smoke after 2pm. Sunny, with a high near 87. Calm wind becoming west around 5 mph in the morning.

    High: 87 °F

    Sunny then
    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke before 10pm. Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Patchy Smoke
    then Partly
    Cloudy

  • Friday

    Friday: A slight chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 78 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 63. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 77. Northeast wind around 10 mph.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. North wind around 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 79. North wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. Northeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Patchy smoke after 2pm. Sunny, with a high near 87. Calm wind becoming west around 5 mph in the morning.
Tonight
Patchy smoke before 10pm. Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 63. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 77. Northeast wind around 10 mph.
Saturday Night
Partly cloudy, with a low around 59. North wind around 5 mph.
Sunday
Sunny, with a high near 79. North wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 57. Northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 86.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pewaukee WI
 43.08°N 88.27°W (Elev. 850 ft)
Last Update:
4:52 am CDT Jul 30, 2026
Forecast Valid:
6am CDT Jul 30, 2026-6pm CDT Aug 5, 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