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

68°F

20°C

Humidity 48%
Wind Speed SE 5 mph
Barometer 30.41 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 23 Sep 2:35 pm CDT
Extended Forecast for

Merrillan WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. East wind around 7 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 43. Light east wind.

    Low: 43 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 66. Southeast wind 3 to 8 mph.

    High: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 65. Light south wind.

    High: 65 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 65. East wind around 7 mph.
Tonight
Increasing clouds, with a low around 43. Light east wind.
Thursday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66. Calm wind becoming southeast around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 50. Calm wind.
Friday
Partly sunny, with a high near 69. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 47. Calm wind.
Saturday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 66. Southeast wind 3 to 8 mph.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 65. Light south wind.
Sunday Night
Mostly cloudy, with a low around 48. Calm wind.
Monday
Partly sunny, with a high near 71. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52. Light south wind.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 68. South wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.85°W
Last Update:
1:21 pm CDT Sep 23, 2026
Forecast Valid:
2pm CDT Sep 23, 2026-6pm CDT Sep 29, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation