Neff Reservoir Weather Forecast

    • 49
    • 84

    Partly Sunny

    • 49
    • 84

    Chance Thunderstorms

    • 48
    • 80

    Chance Thunderstorms

    • 49
    • 82

    Slight Chance Thunderstorms

    • 48
    • 82

    Slight Chance Thunderstorms

    • 46
    • 76

    Slight Chance Thunderstorms

Today 25 May Natrona County Lower Elevations

Partly cloudy this Morning, then clearing. Highs around 80. Southwest Winds 10 to 15 Mph.

Tonight 25 May Natrona County Lower Elevations

Partly cloudy. Lows around 50. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Neff Reservoir Temperature Statistics

May Temperature

Casper, Natrona County International Airport (37.3 miles)

  • Lowest 6 May, 2026

    18.6 °F

  • Average May

    50.4 °F

  • Highest 13 May, 2026

    92.6 °F

Climate (2021–Present)

Casper, Natrona County International Airport (37.3 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    61.5 °F
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