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

Burlington Municipal Airport (KBUU)

Lat: 42.69°NLon: 88.31°WElev: 778ft.

Fair

75°F

24°C

Humidity 78%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 15 Jul 8:55 am CDT
Extended Forecast for

Fontana-on-Geneva Lake WI

  • Today

    Today: Mostly sunny, with a high near 87. Southwest wind around 5 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. South wind around 5 mph becoming calm.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 71. North wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Northeast wind around 5 mph.

    Low: 55 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 75. East wind around 5 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 87. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 68. South wind around 5 mph becoming calm.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Heat index values as high as 96. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 63. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 71. North wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Northeast wind around 5 mph.
Friday
Mostly sunny, with a high near 75. East wind around 5 mph.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fontana-on-Geneva Lake WI
 42.54°N 88.57°W (Elev. 873 ft)
Last Update:
5:38 am CDT Jul 15, 2025
Forecast Valid:
9am CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
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