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

Black River Falls Area Airport (KBCK)

Lat: 44.25°NLon: 90.85°WElev: 830ft.

Fair

74°F

23°C

Humidity 84%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 3 Oct 6:35 pm CDT
Extended Forecast for

Merrillan WI

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind becoming south around 5 mph after midnight.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. South wind around 11 mph, with gusts as high as 26 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. Breezy, with a south wind 11 to 16 mph, with gusts as high as 32 mph.

    High: 82 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. South wind 7 to 11 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 66. Northwest wind around 6 mph.

    High: 66 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. Light northwest wind.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 65. Northwest wind 5 to 7 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Calm wind becoming south around 5 mph after midnight.
Saturday
Sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 63. South wind around 11 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 82. Breezy, with a south wind 11 to 16 mph, with gusts as high as 32 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. South wind 7 to 11 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 66. Northwest wind around 6 mph.
Monday Night
Partly cloudy, with a low around 40. Light northwest wind.
Tuesday
Sunny, with a high near 65. Northwest wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 36. Light and variable wind.
Wednesday
Sunny, with a high near 65. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 38. Light southeast wind.
Thursday
Sunny, with a high near 67. South wind 3 to 8 mph.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 45. South wind 3 to 5 mph.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 67. South wind around 6 mph becoming west in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.85°W
Last Update:
5:58 pm CDT Oct 3, 2025
Forecast Valid:
6pm CDT Oct 3, 2025-6pm CDT Oct 10, 2025
 
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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