Riverton Weather Forecast

    • 23
    • 44

    Snow Showers

    • 38
    • 47

    Rain

    • 33
    • 53

    Rain

    • 29
    • 45

    Partly Sunny

    • 39
    • 50

    Partly Sunny

    • 33
    • 55

    Partly Sunny

Today 29 Jan Western Pendleton

Mostly sunny with isolated snow Showers. Windy with Highs in the upper 40s. Except in the lower 40s at the higher Elevations. West Winds 25 to 30 Mph with Gusts up to 60 Mph. Chance of snow 20 percent.

Tonight 29 Jan Western Pendleton

Partly cloudy with isolated snow Showers in the Evening, then mostly clear after midnight. Windy with Lows around 20. Northwest Winds 25 to 30 Mph with Gusts up to 55 Mph. Chance of snow 20 percent.

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Riverton Temperature Statistics

January Temperature

Petersburg, Grant County Airport (23 miles)

  • Lowest 22 January, 2025

    -4.4 °F

  • Average January

    26.5 °F

  • Highest 18 January, 2025

    50.9 °F

Climate (2020–Present)

Petersburg, Grant County Airport (23 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    67.3 °F
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