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

New Lisbon Mauston Airport (K82C)

Lat: 43.84°NLon: 90.14°WElev: 906ft.

Partly Cloudy

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 29.86 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 11 Aug 9:30 pm CDT
Extended Forecast for

Grand Marsh WI

  • Tonight

    Tonight: Isolated showers and thunderstorms before midnight. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 20%.

    Low: 65 °F

    Isolated
    T-storms then
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 85. Light east wind.

    High: 85 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 63. Calm wind.

    Low: 63 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Calm wind becoming northeast around 6 mph after midnight.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77. East wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. East wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Southeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
Isolated showers and thunderstorms before midnight. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 20%.
Wednesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 85. Light east wind.
Wednesday Night
Increasing clouds, with a low around 63. Calm wind.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 58. Calm wind becoming northeast around 6 mph after midnight.
Friday
Mostly sunny, with a high near 77. East wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. East wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 75. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Southeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 78. Light northwest wind increasing to 5 to 9 mph in the morning.
Sunday Night
Partly cloudy, with a low around 58. Northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 77. Calm wind becoming northwest around 5 mph.
Monday Night
Partly cloudy, with a low around 57. Calm wind.
Tuesday
Mostly sunny, with a high near 79. Calm wind becoming southwest 5 to 8 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Marsh WI
 43.88°N 89.71°W
Last Update:
7:30 pm CDT Aug 11, 2026
Forecast Valid:
9pm CDT Aug 11, 2026-6pm CDT Aug 18, 2026
 
Forecast Discussion
 
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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