Boysen State Park Weather Forecast

    • 33
    • 52

    Slight Chance Thunderstorms

    • 36
    • 57

    Chance Rain Showers

    • 31
    • 56

    Slight Chance Rain Showers

    • 37
    • 64

    Mostly Sunny

    • 42
    • 72

    Partly Sunny

    • 43
    • 70

    Slight Chance Thunderstorms

Today 28 Apr Wind River Basin

Partly cloudy. Patchy fog this morning. A chance of rain Showers, a slight chance of Thunderstorms and snow Showers this afternoon. Highs around 50. Southwest Winds around 10 Mph, becoming northwest this afternoon. Chance of precipitation 30 percent.

Tonight 28 Apr Wind River Basin

Mostly clear. Lows in the lower 30s. Northwest Winds around 10 Mph with Gusts up to 20 Mph, becoming west after midnight.

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Boysen State Park Temperature Statistics

April Temperature

Riverton Regional Airport (21.7 miles)

  • Lowest 4 April, 2026

    22.6 °F

  • Average April

    46.9 °F

  • Highest 11 April, 2026

    73.7 °F

Climate (2021–Present)

Riverton Regional Airport (21.7 miles)

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  • Average Low 2021–2026

    33.7 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    59.5 °F
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