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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Fair

69°F

21°C

Humidity 64%
Wind Speed S 10 mph
Barometer 29.82 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Oct 2:15 am CDT
Extended Forecast for

Merrimac WI

  • Overnight

    Overnight: Mostly cloudy, with a low around 63. Southwest wind 5 to 10 mph.

    Low: 63 °F

    Mostly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 64. Southwest wind 5 to 10 mph.

    Low: 64 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 76. Northwest wind 5 to 10 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 68. North wind around 5 mph.

    High: 68 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 48. East wind around 5 mph.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 64. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 63. Southwest wind 5 to 10 mph.
Columbus Day
Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 64. Southwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 76. Northwest wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54. Calm wind.
Wednesday
Partly sunny, with a high near 68. North wind around 5 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 48. East wind around 5 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 64. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 56. Breezy.
Friday Night
Mostly clear, with a low around 32.
Saturday
Sunny, with a high near 56.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrimac WI
 43.36°N 89.62°W (Elev. 906 ft)
Last Update:
1:21 am CDT Oct 12, 2026
Forecast Valid:
2am CDT Oct 12, 2026-6pm CDT Oct 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