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

55°F

13°C

Humidity 73%
Wind Speed Calm
Barometer 30.33 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Oct 6:15 pm CDT
Extended Forecast for

Blair WI

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, sunny, with a high near 66. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Calm wind becoming south around 5 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Calm wind becoming southeast around 5 mph.

    High: 70 °F

    Sunny

  • Thursday Night

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

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 68. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 54. South wind around 8 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 39. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, sunny, with a high near 66. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 68. Calm wind becoming south around 5 mph.
Wednesday Night
Mostly clear, with a low around 46. Calm wind.
Thursday
Sunny, with a high near 70. Calm wind becoming southeast around 5 mph.
Thursday Night
Mostly clear, with a low around 49. Calm wind.
Friday
Mostly sunny, with a high near 68. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 54. South wind around 8 mph, with gusts as high as 21 mph.
Saturday
Partly sunny, with a high near 69. South wind 10 to 14 mph, with gusts as high as 24 mph.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 65. Southwest wind 5 to 8 mph.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 43. Light west wind.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 58. Calm wind becoming southwest around 6 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Blair WI
 44.3°N 91.22°W
Last Update:
5:01 pm CDT Oct 19, 2026
Forecast Valid:
6pm CDT Oct 19, 2026-6pm CDT Oct 26, 2026
 
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Additional Resources

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Chance of Precipitation