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.

Partly Cloudy

48°F

9°C

Humidity 78%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 20 May 12:35 am CDT
Extended Forecast for

Merrimac WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 63. North wind 5 to 10 mph.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. Northeast wind around 5 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 61. East wind 5 to 10 mph.

    High: 61 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 43. East wind 5 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 63. East wind 5 to 10 mph.

    High: 63 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 70. Northeast wind around 5 mph becoming northwest in the afternoon.

    High: 70 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Northwest wind around 5 mph.
Wednesday
Sunny, with a high near 63. North wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 41. Northeast wind around 5 mph.
Thursday
Partly sunny, with a high near 61. East wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 43. East wind 5 to 10 mph.
Friday
A 40 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 63. East wind 5 to 10 mph.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 70. Northeast wind around 5 mph becoming northwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 53.
Memorial Day
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrimac WI
 43.38°N 89.62°W (Elev. 804 ft)
Last Update:
12:26 am CDT May 20, 2026
Forecast Valid:
12am CDT May 20, 2026-6pm CDT May 26, 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