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.

Rain

52°F

11°C

Humidity 100%
Wind Speed E 3 mph
Barometer 30.00 in
Dewpoint 52°F (11°C)
Visibility 5.00 mi
Last update 15 Oct 12:35 pm CDT
Extended Forecast for

Merrillan WI

  • This Afternoon

    This Afternoon: Showers. High near 53. East wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers

  • Tonight

    Tonight: Showers, mainly before midnight. Low around 36. Northwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers before 10am. Mostly cloudy, with a high near 49. Breezy, with a north wind 15 to 21 mph, with gusts as high as 34 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Breezy.
    Chance
    Showers then
    Mostly Cloudy

  • Friday Night

    Friday Night: Widespread frost, mainly after midnight. Otherwise, mostly clear, with a low around 25. North wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.

    Low: 25 °F

    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 58 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 33. Southwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Southwest wind 9 to 11 mph, with gusts as high as 24 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. South wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 66. Light southwest wind.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers. High near 53. East wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers, mainly before midnight. Low around 36. Northwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 40 percent chance of showers before 10am. Mostly cloudy, with a high near 49. Breezy, with a north wind 15 to 21 mph, with gusts as high as 34 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Widespread frost, mainly after midnight. Otherwise, mostly clear, with a low around 25. North wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Saturday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Clear, with a low around 33. Southwest wind around 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 64. Southwest wind 9 to 11 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 37. South wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Monday
Mostly sunny, with a high near 66. Light southwest wind.
Monday Night
Partly cloudy, with a low around 36. Calm wind.
Tuesday
Sunny, with a high near 69. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 41. Calm wind.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 70. Calm wind becoming south 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.82°W
Last Update:
12:01 pm CDT Oct 15, 2026
Forecast Valid:
12pm CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation