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

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Overcast

71°F

22°C

Humidity 99%
Wind Speed W 3 mph
Barometer 29.96 in
Dewpoint 71°F (22°C)
Visibility 7.00 mi
Last update 16 Aug 6:35 am CDT
Extended Forecast for

Merrimac WI

  • Today

    Today: Partly sunny, with a high near 82. Northwest wind 5 to 10 mph.

    High: 82 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Northwest wind 5 to 10 mph becoming light north in the evening.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Patchy fog before 8am. Otherwise, sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 63. Southwest wind around 5 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 82. West wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 82. Northwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 61. Northwest wind 5 to 10 mph becoming light north in the evening.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 63. Southwest wind around 5 mph.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 82. West wind 5 to 10 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 77. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 55. Calm wind.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 58.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac WI
 43.38°N 89.62°W (Elev. 804 ft)
Last Update:
6:31 am CDT Aug 16, 2026
Forecast Valid:
6am CDT Aug 16, 2026-6pm CDT Aug 22, 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