Izaak Walton Park Weather Forecast

    • 60
    • 93

    Slight Chance Thunderstorms

    • 56
    • 90

    Chance Rain Showers

    • 55
    • 84

    Slight Chance Thunderstorms

    • 57
    • 87

    Partly Sunny

    • 57
    • 90

    Slight Chance Thunderstorms

    • 58
    • 90

    Slight Chance Thunderstorms

Today 23 Aug Natrona County Lower Elevations

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Breezy with Highs around 90. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 20 percent.

Tonight 23 Aug Natrona County Lower Elevations

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 50s. West Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming southwest after midnight. Chance of rain 20 percent.

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Izaak Walton Park Temperature Statistics

August Temperature

Casper, Natrona County International Airport (6.2 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 (6.2 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    61.6 °F
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