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.

75°F

24°C

Humidity 38%
Wind Speed W 8 mph
Barometer 30.11 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 22 Jul 4:15 pm CDT
Extended Forecast for

Blair WI

  • Tonight

    Tonight: Mostly clear, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55. South wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy through mid morning, then becoming sunny, with a high near 81. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Southwest wind 6 to 8 mph.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. West wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 91. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. South wind 3 to 5 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Light and variable wind.
Thursday
Sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 55. South wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy through mid morning, then becoming sunny, with a high near 81. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Friday Night
Partly cloudy, with a low around 61. South wind 6 to 9 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 89. Southwest wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 66. West wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 91. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. South wind 3 to 5 mph.
Monday
A 20 percent chance of showers. Sunny, with a high near 90. Light and variable wind becoming west 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 63. Northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 87. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Sunny, with a high near 86. Calm wind becoming north around 6 mph in the afternoon.
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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:
3:51 pm CDT Jul 22, 2026
Forecast Valid:
4pm CDT Jul 22, 2026-6pm CDT Jul 29, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation