Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Mostly Cloudy

79°F

26°C

Humidity 32%
Wind Speed S 7 mph
Barometer 30.07 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 24 Jul 5:45 pm CDT
Extended Forecast for

Merton WI

  • Tonight

    Tonight: Mostly clear, with a low around 59. Southwest wind 5 to 10 mph becoming light south  in the evening.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. Southwest wind around 5 mph.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny and hot, with a high near 90. Heat index values as high as 97. Southwest wind 5 to 10 mph.

    High: 90 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 72. West wind 5 to 10 mph.

    Low: 72 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 90. Southwest wind 5 to 15 mph.

    High: 90 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. North wind 5 to 10 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. North wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Southwest wind 5 to 10 mph becoming light south in the evening.
Saturday
Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 68. Southwest wind around 5 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny and hot, with a high near 90. Heat index values as high as 97. Southwest wind 5 to 10 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. West wind 5 to 10 mph.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90. Southwest wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 68. North wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 88. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.14°N 88.32°W (Elev. 958 ft)
2:42 pm CDT Jul 24, 2026
6pm CDT Jul 24, 2026-6pm CDT Jul 31, 2026
 
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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