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

84°F

29°C

Humidity 66%
Wind Speed S 3 mph
Barometer 29.99 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 14 Jul 7:35 pm CDT
Extended Forecast for

Merrillan WI

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm. Mostly clear, with a low around 68. Light south wind. Chance of precipitation is 20%.

    Low: 68 °F

    Isolated
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. South wind 5 to 8 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 80. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Chance
    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57. North wind 3 to 5 mph. New rainfall amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 71. Northeast wind around 7 mph. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53. Light northeast wind.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 77. Light and variable wind.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    T-storms

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 8pm. Mostly clear, with a low around 68. Light south wind. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 89. South wind 5 to 8 mph.
Tuesday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 80. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57. North wind 3 to 5 mph. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 71. Northeast wind around 7 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 53. Light northeast wind.
Friday
Sunny, with a high near 77. Light and variable wind.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Calm wind becoming south around 5 mph in the morning.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. Light and variable wind.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 80. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. Light east wind.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind 3 to 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.85°W
Last Update:
6:29 pm CDT Jul 14, 2025
Forecast Valid:
7pm CDT Jul 14, 2025-6pm CDT Jul 21, 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