Mount Vernon Weather Forecast

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    Chance Rain Showers

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    Chance Rain Showers

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    Rain Showers

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    Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

Today 1 May John Day Basin

Partly cloudy in the morning then clearing. Highs in the 50s. West wind 5 to 10 Mph.

Tonight 1 May John Day Basin

Mostly cloudy. Rain or snow likely overnight. No snow accumulation. Lows in the mid to upper 30s. Northwest wind 5 to 10 Mph in the Evening, becoming light. Chance of precipitation 70 percent.

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Mount Vernon Temperature Statistics

May Temperature

Grant County Regional Airport (6.8 miles)

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Climate (2019–Present)

Grant County Regional Airport (6.8 miles)

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  • Average Low 2019–2024

    39.2 °F

  • Average 2019–2024

    50.4 °F

  • Average High 2019–2024

    62.2 °F
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