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

Waukesha County Airport (KUES)

Lat: 43.04°NLon: 88.25°WElev: 886ft.

Fair

70°F

21°C

Humidity 38%
Wind Speed S 9 mph
Barometer 29.68 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 9 Mar 4:45 pm CDT
Extended Forecast for

Merton WI

  • Tonight

    Tonight: Mostly clear, with a low around 38. Light and variable wind becoming northeast 5 to 10 mph after midnight.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 46. Northeast wind 10 to 15 mph.

    High: 46 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 7pm, then rain and possibly a thunderstorm between 7pm and 1am, then rain likely after 1am. Low around 33. Northeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers

  • Wednesday

    Wednesday: Rain likely before 10am, then rain and snow likely between 10am and 1pm, then a chance of snow after 1pm. Cloudy, with a high near 38. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 5 to 10 mph.

    Low: 24 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Increasing clouds, with a high near 43. West wind 5 to 10 mph becoming southwest in the afternoon.

    High: 43 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain and snow. Low around 34. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Rain/Snow and
    Breezy

  • Friday

    Friday: A slight chance of rain and snow before 1pm. Partly sunny, with a high near 44. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 38. Light and variable wind becoming northeast 5 to 10 mph after midnight.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 46. Northeast wind 10 to 15 mph.
Tuesday Night
A chance of showers and thunderstorms before 7pm, then rain and possibly a thunderstorm between 7pm and 1am, then rain likely after 1am. Low around 33. Northeast wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain likely before 10am, then rain and snow likely between 10am and 1pm, then a chance of snow after 1pm. Cloudy, with a high near 38. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 24. Northwest wind 5 to 10 mph.
Thursday
Increasing clouds, with a high near 43. West wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Rain and snow. Low around 34. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A slight chance of rain and snow before 1pm. Partly sunny, with a high near 44. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday Night
A 20 percent chance of snow after 1am. Mostly cloudy, with a low around 26.
Saturday
A 40 percent chance of snow, mainly before 1pm. Cloudy, with a high near 39.
Saturday Night
Rain and snow likely. Cloudy, with a low around 29. Chance of precipitation is 70%.
Sunday
Rain and snow. High near 38. Breezy. Chance of precipitation is 80%.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 14.
Monday
Mostly cloudy, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.14°N 88.32°W (Elev. 958 ft)
Last Update:
3:13 pm CDT Mar 9, 2026
Forecast Valid:
5pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation