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Hazardous Weather Conditions

Current conditions at

Black River Falls Area Airport (KBCK)

Lat: 44.25°NLon: 90.85°WElev: 830ft.

Fair

59°F

15°C

Humidity 56%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 4 Oct 6:35 pm CDT
Extended Forecast for

Merrillan WI

Frost Advisory October 5, 01:00am until October 5, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, mostly clear, with a low around 34. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 8am. Otherwise, sunny, with a high near 65. Calm wind.

    High: 65 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind becoming south around 5 mph after midnight.

    Low: 47 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. South wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. Southwest wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. West wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy frost after 5am. Otherwise, mostly clear, with a low around 34. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 65. Calm wind.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind becoming south around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 73. South wind 7 to 11 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 48. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 71. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 43. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 67. Calm wind becoming west 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. Calm wind.
Friday
Mostly sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 45. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 73. South wind 6 to 14 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 55. South wind 7 to 11 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 75. South wind 7 to 11 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Merrillan WI
 44.45°N 90.82°W
Last Update:
3:31 pm CDT Oct 4, 2026
Forecast Valid:
6pm CDT Oct 4, 2026-6pm CDT Oct 11, 2026
 
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Additional Resources

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Chance of Precipitation