Bellevue Weather Forecast

    • 50
    • 78

    Becoming Sunny

    • 51
    • 81

    Mostly Sunny

    • 49
    • 77

    Partly Sunny

    • 47
    • 73

    Partly Sunny

    • 48
    • 70

    Mostly Cloudy

    • 48
    • 68

    Mostly Cloudy

    • 46
    • 65

    Slight Chance Rain

Today 19 Sep West Central Willamette Valley

Mostly sunny. Highs in the upper 60s.

Tonight 19 Sep West Central Willamette Valley

Mostly clear. Lows in the lower 50s. Winds light this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bellevue Temperature Statistics

September Temperature

McMinnville, McMinnville Municipal Airport (9.9 miles)

  • Lowest 11 September, 2026

    45.6 °F

  • Average September

    62.1 °F

  • Highest 9 September, 2026

    89.7 °F

Climate (2021–2026)

McMinnville, McMinnville Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    54.1 °F

  • Average High 2021–2026

    64.9 °F
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