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.

Fair

30°F

-1°C

Humidity 93%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 2 May 3:55 am CDT
Extended Forecast for

Merton WI

Freeze Warning until May 2, 08:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until May 2, 08:00am

    NOW until 8:00am Sat

    Freeze Warning

  • Overnight

    Low: 29 °F

    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 55. Light west wind increasing to 5 to 10 mph in the morning.

    High: 55 °F

    Frost then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. Southwest wind 5 to 10 mph.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 64. Southwest wind around 15 mph, with gusts as high as 30 mph.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. West wind 5 to 10 mph.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 72. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 72 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 44. West wind 5 to 10 mph. Chance of precipitation is 50%.

    Low: 44 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 56. Northwest wind 5 to 10 mph.

    High: 56 °F

    Chance
    Showers

Detailed Forecast

Overnight
Widespread frost. Otherwise, clear, with a low around 29. Calm wind.
Saturday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 55. Light west wind increasing to 5 to 10 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 41. Southwest wind 5 to 10 mph.
Sunday
A 50 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 64. Southwest wind around 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 42. West wind 5 to 10 mph.
Monday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 72. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 44. West wind 5 to 10 mph. Chance of precipitation is 50%.
Tuesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 56. Northwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 54.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 37.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.14°N 88.32°W (Elev. 958 ft)
Last Update:
3:32 am CDT May 2, 2026
Forecast Valid:
4am CDT May 2, 2026-6pm CDT May 8, 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