Deer Lake Weather Forecast

    • 39
    • 52

    Mostly Cloudy

    • 36
    • 53

    Mostly Cloudy

    • 41
    • 51

    Rain Likely

    • 40
    • 55

    Rain

    • 34
    • 51

    Rain Likely

    • 33
    • 46

    Chance Rain/Snow

Today 12 Dec Upper Columbia Basin

Mostly cloudy. Highs in the upper 40s to mid 50s. South wind 5 to 15 Mph.

Tonight 12 Dec Upper Columbia Basin

Mostly cloudy. Lows in the upper 30s to lower 40s. Southwest wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Deer Lake Temperature Statistics

December Temperature

Grant County Airport (37.9 miles)

  • Lowest 1 December, 2025

    25 °F

  • Average December

    39.2 °F

  • Highest 8 December, 2025

    57.9 °F

Climate (2020–Present)

Grant County Airport (37.9 miles)

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  • Average Low 2020–2025

    41.1 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    64.3 °F
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