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

Hazardous Weather Conditions

Current conditions at

Burlington Municipal Airport (KBUU)

Lat: 42.69°NLon: 88.31°WElev: 778ft.

Mostly Cloudy

62°F

17°C

Humidity 85%
Wind Speed S 8 mph
Barometer 29.71 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Apr 9:35 am CDT
Extended Forecast for

Williams Bay WI

  • Today

    Today: Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely, mainly after 4pm. Cloudy, with a high near 71. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely then
    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then a chance of showers and thunderstorms after 3am. Patchy fog after 9pm. Low around 56. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    T-storms and
    Patchy Fog
    then Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Southwest wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.

    Low: 50 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 46. South wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 58. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 58 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of rain showers, mixing with snow after 10pm, then gradually ending. Partly cloudy, with a low around 31. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely, mainly after 4pm. Cloudy, with a high near 71. Southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then a chance of showers and thunderstorms after 3am. Patchy fog after 9pm. Low around 56. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Showers likely and possibly a thunderstorm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 67. Southwest wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 50. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Friday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 76. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Friday Night
Showers and possibly a thunderstorm. Low around 46. South wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 58. West wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Saturday Night
A slight chance of rain showers, mixing with snow after 10pm, then gradually ending. Partly cloudy, with a low around 31. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williams Bay WI
 42.57°N 88.54°W (Elev. 869 ft)
Last Update:
8:57 am CDT Apr 15, 2026
Forecast Valid:
9am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
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