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

40°F

4°C

Humidity 93%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 7 Oct 11:15 pm CDT
Extended Forecast for

Blair WI

  • Tonight

    Tonight: Mostly clear, with a low around 45. Light northwest wind.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Southeast wind around 8 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 28 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. South wind 7 to 14 mph, with gusts as high as 26 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. South wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 57. South wind 3 to 5 mph.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 45. Light northwest wind.
Thursday
Mostly sunny, with a high near 66. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 43. Calm wind.
Friday
Mostly sunny, with a high near 72. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
Mostly clear, with a low around 58. Southeast wind around 8 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 81. South wind 10 to 15 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 61. South wind 7 to 14 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 79. South wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 57. South wind 3 to 5 mph.
Columbus Day
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 71. Light west wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 46. Northwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, with a high near 59. Northwest wind around 9 mph.
Tuesday Night
Partly cloudy, with a low around 39. Light northwest wind.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 61. Calm wind becoming south 5 to 8 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:
11:06 pm CDT Oct 7, 2026
Forecast Valid:
11pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation