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

79°F

26°C

Humidity 24%
Wind Speed W 17 G 29 mph
Barometer 29.46 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 May 2:45 pm CDT
Extended Forecast for

Merton WI

  • This Afternoon

    This Afternoon: A chance of sprinkles after 5pm. Mostly sunny, with a high near 75. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.

    High: 75 °F

    Chance
    Sprinkles and
    Breezy

  • Tonight

    Tonight: A chance of rain and thunderstorms before 1am, then a slight chance of showers between 1am and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 41. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 56. Northwest wind 5 to 15 mph.

    High: 56 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • Wednesday

    Wednesday: Areas of frost before 7am. Otherwise, partly sunny, with a high near 54. Northwest wind 5 to 10 mph.

    High: 54 °F

    Areas Frost
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 2am. Otherwise, mostly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Cloudy
    then Areas
    Frost

  • Thursday

    Thursday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 57 °F

    Areas Frost
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 39. Southwest wind around 5 mph. Chance of precipitation is 10%.

    Low: 39 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
A chance of sprinkles after 5pm. Mostly sunny, with a high near 75. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.
Tonight
A chance of rain and thunderstorms before 1am, then a slight chance of showers between 1am and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 41. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 56. Northwest wind 5 to 15 mph.
Tuesday Night
Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 36. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Areas of frost before 7am. Otherwise, partly sunny, with a high near 54. Northwest wind 5 to 10 mph.
Wednesday Night
Areas of frost after 2am. Otherwise, mostly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 57. Light west wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.
Thursday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 39. Southwest wind around 5 mph. Chance of precipitation is 10%.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 64.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.14°N 88.32°W (Elev. 958 ft)
Last Update:
3:32 pm CDT May 4, 2026
Forecast Valid:
3pm CDT May 4, 2026-6pm CDT May 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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