Current conditions at

Black River Falls Area Airport (KBCK)

Lat: 44.25°NLon: 90.85°WElev: 830ft.

Fair

53°F

12°C

Humidity 96%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 23 Aug 9:35 pm CDT
Extended Forecast for

Merrillan WI

  • Tonight

    Tonight: Areas of fog after 1am.  Otherwise, mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear
    then Areas
    Fog

  • Monday

    Monday: Areas of fog before 8am.  Otherwise, mostly sunny, with a high near 81. Calm wind.

    High: 81 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers.  Partly cloudy, with a low around 61. South wind 5 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 82. West wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Northwest wind 3 to 8 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Northwest wind 3 to 7 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of fog after 1am. Otherwise, mostly clear, with a low around 43. Calm wind.
Monday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 81. Calm wind.
Monday Night
Mostly clear, with a low around 53. Calm wind.
Tuesday
Mostly sunny, with a high near 84. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Partly cloudy, with a low around 61. South wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny, with a high near 82. West wind 5 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 56. Northwest wind 3 to 8 mph.
Thursday
Sunny, with a high near 82. Northwest wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 51. Calm wind.
Friday
Sunny, with a high near 82. Light northeast wind.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54. Calm wind.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 82. South wind 3 to 7 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Southeast wind 3 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.85°W
9:36 pm CDT Aug 23, 2026
9pm CDT Aug 23, 2026-6pm CDT Aug 30, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database