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

Hazardous Weather Conditions

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Mostly Cloudy

76°F

24°C

Humidity 65%
Wind Speed NW 8 mph
Barometer 29.99 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Aug 3:35 pm CDT
Extended Forecast for

Merrimac WI

  • Tonight

    Tonight: Mostly clear, with a low around 59. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: A 10 percent chance of showers after 5am. Increasing clouds, with a low around 63. Southwest wind around 5 mph.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 81. West wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 78 °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 79. Calm wind becoming west around 5 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Monday Night
A 10 percent chance of showers after 5am. Increasing clouds, with a low around 63. Southwest wind around 5 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 81. West wind 5 to 10 mph. Chance of precipitation is 50%.
Tuesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 58. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 78. 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 79. Calm wind becoming west around 5 mph.
Thursday Night
Mostly clear, with a low around 57.
Friday
A 30 percent chance of showers after 1pm. 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
A 20 percent chance of showers. Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrimac WI
 43.36°N 89.62°W (Elev. 906 ft)
Last Update:
3:31 pm CDT Aug 16, 2026
Forecast Valid:
3pm CDT Aug 16, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation