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.

Overcast

45°F

7°C

Humidity 81%
Wind Speed W 17 G 24 mph
Barometer 29.75 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 7 Mar 2:45 pm CST
Extended Forecast for

Merton WI

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.

    Low: 33 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 61 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45. Southwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 67. Southwest wind 5 to 15 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. Southwest wind 5 to 10 mph becoming northeast in the evening.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of rain after noon. Increasing clouds, with a high near 55. East wind 10 to 15 mph.

    High: 55 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 32. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 32 °F

    Rain

  • Wednesday

    Wednesday: Rain and snow likely, mainly before noon. Cloudy, with a high near 40. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 23.

    Low: 23 °F

    Chance Snow
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.
Sunday
Sunny, with a high near 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph.
Sunday Night
Partly cloudy, with a low around 45. Southwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 67. Southwest wind 5 to 15 mph.
Monday Night
Mostly clear, with a low around 40. Southwest wind 5 to 10 mph becoming northeast in the evening.
Tuesday
A 40 percent chance of rain after noon. Increasing clouds, with a high near 55. East wind 10 to 15 mph.
Tuesday Night
Rain. Low around 32. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain and snow likely, mainly before noon. Cloudy, with a high near 40. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 23.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Friday
A chance of rain and snow. Partly sunny, with a high near 53. Breezy. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 24.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merton WI
 43.14°N 88.29°W (Elev. 1010 ft)
Last Update:
1:31 pm CST Mar 7, 2026
Forecast Valid:
3pm CST Mar 7, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation