Riverton Weather Forecast

    • 63
    • 75

    Rain Showers

    • 65
    • 74

    Rain Showers

    • 66
    • 81

    Rain Showers

    • 69
    • 87

    Chance Thunderstorms

    • 63
    • 85

    Rain Showers Likely

    • 60
    • 82

    Slight Chance Thunderstorms

Today 15 Jun Western Pendleton

Cloudy. A chance of Showers and Thunderstorms this Morning, then Showers with Thunderstorms likely this afternoon. Locally heavy rainfall possible this afternoon. Highs in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 90 percent.

Tonight 15 Jun Western Pendleton

Cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Showers after midnight. Locally heavy rainfall possible in the evening. Lows around 60. East Winds around 5 Mph. Chance of rain 70 percent.

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Riverton Temperature Statistics

June Temperature

Petersburg, Grant County Airport (23 miles)

  • Lowest 2 June, 2025

    38.3 °F

  • Average June

    67.8 °F

  • Highest 12 June, 2025

    90.1 °F

Climate (2020–Present)

Petersburg, Grant County Airport (23 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    67.5 °F
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