Riverton Weather Forecast

    • 30
    • 49

    Mostly Sunny

    • 38
    • 55

    Mostly Sunny

    • 55
    • 64

    Chance Rain Showers

    • 57
    • 74

    Mostly Cloudy

    • 57
    • 73

    Chance Rain Showers

    • 40
    • 72

    Rain Showers Likely

Today 26 Mar Western Pendleton

Mostly sunny and windy. Highs in the lower 50s. Except in the lower 40s at the higher Elevations. West Winds 20 to 30 Mph with Gusts up to 45 Mph.

Tonight 26 Mar Western Pendleton

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 20s. West Winds 15 to 20 Mph. Gusts up to 40 Mph in the evening.

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Riverton Temperature Statistics

March Temperature

Petersburg, Grant County Airport (23 miles)

  • Lowest 3 March, 2025

    16.7 °F

  • Average March

    46.9 °F

  • Highest 19 March, 2025

    80.6 °F

Climate (2020–Present)

Petersburg, Grant County Airport (23 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    67.4 °F
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