Mount Vernon Weather Forecast

    • 38
    • 58

    Decreasing Clouds

    • 44
    • 58

    Rain Likely

    • 34
    • 52

    Rain

    • 29
    • 44

    Partly Sunny

    • 29
    • 45

    Mostly Sunny

    • 30
    • 46

    Partly Sunny

Today 6 Feb John Day Basin

Partly sunny. Highs in the mid to upper 50s. Light wind.

Tonight 6 Feb John Day Basin

Mostly cloudy in the evening then clearing. Lows in the mid to upper 30s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

February Temperature

Grant County Regional Airport (6.8 miles)

  • Lowest 2 February, 2026

    28.6 °F

  • Average February

    44.6 °F

  • Highest 4 February, 2026

    66.6 °F

Climate (2021–Present)

Grant County Regional Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    62.2 °F
Get WillyWeather+ to remove ads