Riverton Weather Forecast

    • 37
    • 66

    Increasing Clouds

    • 32
    • 51

    Rain Showers

    • 36
    • 63

    Mostly Sunny

    • 42
    • 74

    Mostly Sunny

    • 45
    • 81

    Slight Chance Thunderstorms

    • 46
    • 85

    Mostly Sunny

Today 20 May Wind River Basin

Partly cloudy. Highs in the lower 60s. Southwest Winds 10 to 15 Mph.

Tonight 20 May Wind River Basin

Mostly cloudy. Lows in the upper 30s. West Winds 10 to 15 Mph, becoming east after midnight.

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Riverton Temperature Statistics

May Temperature

Riverton Regional Airport (3.7 miles)

  • Lowest 6 May, 2026

    25.6 °F

  • Average May

    54.3 °F

  • Highest 13 May, 2026

    91.7 °F

Climate (2021–Present)

Riverton Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    59.5 °F
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