Onego Weather Forecast

    • 34
    • 72

    Rain Showers

    • 39
    • 56

    Mostly Sunny

    • 56
    • 63

    Chance Rain Showers

    • 62
    • 78

    Rain Showers Likely

    • 57
    • 72

    Rain Showers

    • 57
    • 73

    Rain Showers Likely

    • 37
    • 69

    Chance Rain Showers

Today 31 Mar Western Pendleton

Showers and Thunderstorms. Highs in the mid 70s. Except in the upper 60s at the higher Elevations. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

Tonight 31 Mar Western Pendleton

Rain Showers and Thunderstorms in the Evening, then a slight chance of freezing rain after midnight. Patchy dense fog. Ice accumulation around a trace. Cooler with Lows in the lower 30s. Northwest Winds 10 to 15 Mph with Gusts up to 35 Mph. Chance of precipitation near 100 percent.

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Onego Temperature Statistics

March Temperature

Petersburg, Grant County Airport (18 miles)

  • Lowest 3 March, 2025

    16.7 °F

  • Average March

    47.8 °F

  • Highest 19 March, 2025

    80.6 °F

Climate (2020–Present)

Petersburg, Grant County Airport (18 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    67.3 °F
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