Blair Weather Forecast

    • 42
    • 58

    Mostly Cloudy

    • 39
    • 62

    Partly Sunny

    • 41
    • 64

    Mostly Sunny

    • 54
    • 71

    Chance Rain Showers

    • 55
    • 72

    Chance Rain Showers

    • 48
    • 73

    Partly Sunny

Today 5 Sep Trempealeau

Partly sunny with a chance of Sprinkles. Highs in the upper 50s. West Winds 10 to 15 Mph. Gusts up to 30 Mph this afternoon.

Tonight 5 Sep Trempealeau

Mostly cloudy with a slight chance of rain Showers in the Evening, then partly cloudy after midnight. Lows in the lower 40s. West Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Blair Temperature Statistics

September Temperature

Black River Falls Area Airport (19.3 miles)

  • Lowest 3 September, 2025

    40.1 °F

  • Average September

    59.4 °F

  • Highest 1 September, 2025

    77 °F

Climate (2020–Present)

Black River Falls Area Airport (19.3 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    57.8 °F
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