Neff Reservoir Weather Forecast

    • 54
    • 82

    Rain Showers

    • 57
    • 85

    Mostly Sunny

    • 60
    • 90

    Mostly Sunny

    • 62
    • 89

    Partly Sunny

    • 62
    • 91

    Slight Chance Thunderstorms

    • 60
    • 89

    Chance Rain Showers

Today 18 Aug Natrona County Lower Elevations

Mostly cloudy. Scattered Showers with isolated Thunderstorms in the afternoon. Highs around 80. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 18 Aug Natrona County Lower Elevations

Partly cloudy. Scattered Showers with isolated Thunderstorms in the evening. Lows in the lower 50s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph in the evening. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Neff Reservoir Temperature Statistics

August Temperature

Casper, Natrona County International Airport (37.3 miles)

  • Lowest 5 August, 2026

    44.7 °F

  • Average August

    72.1 °F

  • Highest 2 August, 2026

    103.6 °F

Climate (2021–2026)

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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