Blair Lake Weather Forecast

    • -4
    • 4

    Chance Snow

    • -3
    • 29

    Chance Snow

    • -13
    • 3

    Chance Snow

    • -8
    • 3

    Cold

    • -7
    • 7

    Cold

    • -5
    • 13

    Mostly Cloudy

Today 29 Dec Mahnomen

Mostly sunny. Highs 5 to 10. Northwest Winds around 15 Mph becoming west around 5 Mph in the afternoon.

Tonight 29 Dec Mahnomen

Mostly cloudy. A slight chance of light snow after midnight. Lows zero to 5 below. Chance of snow 20 percent.

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Blair Lake Temperature Statistics

December Temperature

Fosston, Fosston Municipal Airport (11.8 miles)

  • Lowest 14 December, 2025

    -27.4 °F

  • Average December

    9.4 °F

  • Highest 16 December, 2025

    42.8 °F

Climate (2020–Present)

Fosston, Fosston Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    30.4 °F

  • Average 2020–2025

    40.3 °F

  • Average High 2020–2025

    49.7 °F
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