Neff Reservoir Weather Forecast

    • 29
    • 61

    Breezy

    • 37
    • 60

    Partly Sunny

    • 36
    • 57

    Partly Sunny

    • 22
    • 55

    Breezy

    • 30
    • 43

    Mostly Cloudy

    • 26
    • 54

    Slight Chance Rain/Snow

Today 14 Dec Natrona County Lower Elevations

Mostly sunny and breezy. Not as cool with Highs around 60. Southwest Winds 15 to 25 Mph with Gusts up to 40 Mph.

Tonight 14 Dec Natrona County Lower Elevations

Mostly clear and breezy. Lows in the lower 30s. Southwest Winds 15 to 25 Mph. Gusts up to 40 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Neff Reservoir Temperature Statistics

December Temperature

Casper, Natrona County International Airport (37.3 miles)

  • Lowest 1 December, 2025

    6.1 °F

  • Average December

    34 °F

  • Highest 11 December, 2025

    57.9 °F

Climate (2020–Present)

Casper, Natrona County International Airport (37.3 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    60.4 °F
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