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

Heavy to Excessive Rainfall for the Southwest;

Tropical moisture from Priscilla will bring a multi-day thunderstorm, widespread heavy rainfall and flash flooding event across the Southwest/Four Corners region. Flash flooding will be a concern in burn scars, slot canyons, and urban areas. Widespread storms are expected in central/South Florida with some isolated flash flooding possible. Read More >

Hazardous Weather Conditions

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Fair

32°F

0°C

Humidity 91%
Wind Speed Calm
Barometer 30.47 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 9 Oct 4:15 am CDT
Extended Forecast for

Merrimac WI

Frost Advisory October 9, 04:20am until October 9, 09:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory October 9, 04:20am until October 9, 09:00am

    NOW until 9:00am Thu

    Frost Advisory

  • Today

    High: 67 °F

    Patchy Frost
    then Sunny

  • Tonight

    Tonight: A 50 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 47. South wind 5 to 10 mph.

    Low: 47 °F

    Mostly Clear
    then Chance
    Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Southwest wind 10 to 15 mph becoming west in the afternoon.

    High: 72 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. Northwest wind 5 to 10 mph.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67. Northwest wind around 5 mph becoming northeast in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. Northeast wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 69. Southeast wind 5 to 15 mph.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 55. Southeast wind 10 to 15 mph.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy frost before 7am. Otherwise, sunny, with a high near 67. Light and variable wind becoming south 5 to 10 mph in the morning.
Tonight
A 50 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 47. South wind 5 to 10 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Southwest wind 10 to 15 mph becoming west in the afternoon.
Friday Night
Mostly clear, with a low around 44. Northwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 67. Northwest wind around 5 mph becoming northeast in the afternoon.
Saturday Night
Mostly clear, with a low around 44. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 69. Southeast wind 5 to 15 mph.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 55. Southeast wind 10 to 15 mph.
Columbus Day
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 73.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 47.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 68.
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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:
4:06 am CDT Oct 9, 2025
Forecast Valid:
4am CDT Oct 9, 2025-6pm CDT Oct 15, 2025
 
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