Diamond Weather Forecast

    • 28
    • 45

    Chance Snow Showers

    • 44
    • 57

    Breezy

    • 37
    • 60

    Windy

    • 40
    • 61

    Partly Sunny

    • 41
    • 61

    Breezy

    • 40
    • 59

    Windy

Today 20 Dec Central Laramie Range and Southwest Platte County

Mostly cloudy early this Morning, then clearing. Snow Showers likely Late, then a chance of snow Showers this morning. A slight chance of snow Showers this afternoon. Little or no snow accumulation. Windy and much cooler with Highs in the lower 40s. Northwest Winds 20 to 30 Mph, becoming west this afternoon. Gusts up to 45 Mph. Chance of snow 60 percent.

Tonight 20 Dec Central Laramie Range and Southwest Platte County

Mostly clear in the Evening, then becoming partly cloudy. Breezy, cold with Lows around 30. Southwest Winds 15 to 25 Mph with Gusts up to 35 Mph.

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Diamond Temperature Statistics

December Temperature

Cheyenne, Cheyenne Airport (36 miles)

  • Lowest 4 December, 2025

    6.1 °F

  • Average December

    38.1 °F

  • Highest 14 December, 2025

    64 °F

Climate (2020–Present)

Cheyenne, Cheyenne Airport (36 miles)

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  • Average Low 2020–2025

    36.1 °F

  • Average 2020–2025

    48.4 °F

  • Average High 2020–2025

    60.7 °F
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