Neff Reservoir Weather Forecast

    • 55
    • 84

    Mostly Sunny

    • 58
    • 94

    Mostly Sunny

    • 63
    • 95

    Slight Chance Thunderstorms

    • 59
    • 89

    Chance Thunderstorms

    • 54
    • 83

    Chance Thunderstorms

    • 54
    • 85

    Slight Chance Thunderstorms

    • 56
    • 87

    Slight Chance Thunderstorms

Today 30 Jun Natrona County Lower Elevations

Sunny. Highs in the lower 80s. East Winds around 10 Mph.

Tonight 30 Jun Natrona County Lower Elevations

Clear. Lows in the lower 50s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Neff Reservoir Temperature Statistics

June Temperature

Casper, Natrona County International Airport (37.3 miles)

  • Lowest 23 June, 2025

    32.6 °F

  • Average June

    65.1 °F

  • Highest 15 June, 2025

    95.6 °F

Climate (2020–Present)

Casper, Natrona County International Airport (37.3 miles)

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  • Average Low 2020–2025

    32.6 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    60.2 °F
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