Williams Coulee Reservoir Weather Forecast

    • 22
    • 35

    Cloudy

    • 12
    • 40

    Slight Chance Freezing Rain

    • 20
    • 35

    Mostly Cloudy

    • 10
    • 33

    Chance Snow

    • 10
    • 23

    Mostly Cloudy

    • 13
    • 35

    Partly Sunny

Today 21 Dec Central and Southeast Phillips

Partly sunny this Morning, then becoming mostly cloudy. Warmer with Highs in the lower 30s. South wind 5 to 10 Mph, becoming east this afternoon.

Tonight 21 Dec Central and Southeast Phillips

Cloudy. Lows 15 to 20. East wind around 5 Mph.

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Williams Coulee Reservoir Temperature Statistics

December Temperature

Glasgow, Glasgow International Airport (64 miles)

  • Lowest 1 December, 2025

    -14.1 °F

  • Average December

    18.2 °F

  • Highest 15 December, 2025

    46 °F

Climate (2020–Present)

Glasgow, Glasgow International Airport (64 miles)

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  • Average Low 2020–2025

    34.5 °F

  • Average 2020–2025

    46.1 °F

  • Average High 2020–2025

    58 °F
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