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

37°F

3°C

Humidity 86%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 22 Apr 4:35 am CDT
Extended Forecast for

2 Miles SSW Merrillan WI

  • Today

    Today: Sunny, with a high near 76. Light east wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Southeast wind around 8 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. South wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 53. South wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Showers

  • Friday

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 64. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Northwest wind 5 to 7 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63. Northwest wind 5 to 7 mph.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 66. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 66 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 76. Light east wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tonight
Partly cloudy, with a low around 56. Southeast wind around 8 mph, with gusts as high as 20 mph.
Thursday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. South wind 8 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Thursday Night
Showers and possibly a thunderstorm. Low around 53. South wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 64. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Mostly clear, with a low around 39. Northwest wind 5 to 7 mph.
Saturday
Sunny, with a high near 63. Northwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 39. Calm wind.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 66. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 47. East wind 8 to 15 mph, with gusts as high as 29 mph.
Monday
Showers likely. Mostly cloudy, with a high near 63. Southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 41. Southeast wind 11 to 14 mph becoming northwest in the evening. Winds could gust as high as 26 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 58. West wind around 14 mph, with gusts as high as 25 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Merrillan WI
 44.42°N 90.85°W
Last Update:
3:41 am CDT Apr 22, 2026
Forecast Valid:
5am CDT Apr 22, 2026-6pm CDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation