Shreiner Reservoir Weather Forecast

    • 29
    • 59

    Mostly Sunny

    • 31
    • 62

    Mostly Sunny

    • 31
    • 61

    Partly Sunny

    • 37
    • 63

    Mostly Sunny

    • 37
    • 65

    Mostly Cloudy

    • 29
    • 56

    Chance Rain/Snow

Today 21 Oct Natrona County Lower Elevations

Sunny, breezy with Highs in the upper 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 21 Oct Natrona County Lower Elevations

Mostly clear. Lows around 30. West Winds around 10 Mph.

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Shreiner Reservoir Temperature Statistics

October Temperature

Casper, Natrona County International Airport (11.2 miles)

  • Lowest 13 October, 2025

    24.1 °F

  • Average October

    51.2 °F

  • Highest 3 October, 2025

    82.9 °F

Climate (2020–Present)

Casper, Natrona County International Airport (11.2 miles)

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  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    60.2 °F
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