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

71°F

22°C

Humidity 68%
Wind Speed NW 3 mph
Barometer 29.95 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 26 Aug 8:15 pm CDT
Extended Forecast for

5 Miles ESE Merrillan WI

  • Tonight

    Tonight: Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84. Calm wind.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind 5 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88. Southwest wind around 8 mph, with gusts as high as 21 mph.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 5 mph.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 49. Calm wind.
Friday
Sunny, with a high near 84. Calm wind.
Friday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 61. Calm wind.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South wind 3 to 8 mph. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind 5 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 88. Southwest wind around 8 mph, with gusts as high as 21 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 5 mph.
Monday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 89. Southwest wind around 6 mph.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Merrillan WI
 44.42°N 90.73°W
Last Update:
5:47 pm CDT Aug 26, 2026
Forecast Valid:
8pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
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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