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

83°F

28°C

Humidity 56%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 2 Sep 12:55 pm CDT
Extended Forecast for

Blair WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. Light southwest wind.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 2pm. Partly sunny, with a high near 85. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 4am, then a slight chance of showers. Low around 66. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers

  • Friday

    Friday: A 10 percent chance of showers before 7am. Mostly sunny, with a high near 88. South wind 3 to 6 mph.

    High: 88 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Calm wind becoming southeast around 6 mph in the morning.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Southeast wind 3 to 5 mph.

    Low: 66 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. South wind 3 to 7 mph.

    High: 83 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. Light southwest wind.
Tonight
A 30 percent chance of showers after 5am. Partly cloudy, with a low around 65. Calm wind.
Thursday
Showers and thunderstorms likely, mainly before 2pm. Partly sunny, with a high near 85. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before 4am, then a slight chance of showers. Low around 66. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 88. South wind 3 to 6 mph.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 67. Calm wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming southeast around 6 mph in the morning.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Southeast wind 3 to 5 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. South wind 3 to 7 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm in the evening.
Labor Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. South wind 3 to 7 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind 6 to 8 mph, with gusts as high as 18 mph.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind 9 to 11 mph, with gusts as high as 22 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Blair WI
 44.3°N 91.25°W
Last Update:
11:36 am CDT Sep 2, 2026
Forecast Valid:
1pm CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
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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