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

Heavy to Excessive Rainfall for the Southwest;

Tropical moisture from Priscilla will bring a multi-day thunderstorm, widespread heavy rainfall and flash flooding event across the Southwest/Four Corners region. Flash flooding will be a concern in burn scars, slot canyons, and urban areas. Widespread storms are expected in central/South Florida with some isolated flash flooding possible on Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

50°F

10°C

Humidity 71%
Wind Speed NE 3 mph
Barometer 30.43 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 8 Oct 7:45 pm CDT
Extended Forecast for

Merton WI

  • Tonight

    Tonight: Clear, with a low around 40. Calm wind becoming east around 5 mph.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 63. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 45. Southeast wind around 5 mph.

    Low: 45 °F

    Increasing
    Clouds

  • Friday

    Friday: A 20 percent chance of showers. Partly sunny, with a high near 66. South wind 5 to 10 mph.

    High: 66 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 64. Northwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46. Northeast wind around 5 mph.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. East wind 5 to 10 mph.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 40. Calm wind becoming east around 5 mph.
Thursday
Sunny, with a high near 63. Light and variable wind becoming south 5 to 10 mph in the morning.
Thursday Night
Increasing clouds, with a low around 45. Southeast wind around 5 mph.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 66. South wind 5 to 10 mph.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 44. Northwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 64. Northwest wind 5 to 10 mph becoming northeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 46. Northeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 66. East wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Columbus Day
Partly sunny, with a high near 70.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 69.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.16°N 88.29°W (Elev. 1004 ft)
Last Update:
6:36 pm CDT Oct 8, 2025
Forecast Valid:
7pm CDT Oct 8, 2025-6pm CDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

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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