Grande Round Lake Weather Forecast

    • 34
    • 50

    Slight Chance Rain Showers

    • 39
    • 53

    Mostly Sunny

    • 39
    • 53

    Chance Rain Showers

    • 40
    • 53

    Slight Chance Rain Showers

    • 43
    • 57

    Mostly Sunny

    • 46
    • 60

    Mostly Sunny

    • 40
    • 60

    Mostly Sunny

Today 15 Sep Southern Blue Mountains of Oregon

Partly cloudy. Highs in the lower 60s to lower 70s.

Tonight 15 Sep Southern Blue Mountains of Oregon

Mostly cloudy. A 20 percent chance of rain Showers overnight. Lows in the upper 30s to mid 40s.

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Grande Round Lake Temperature Statistics

September Temperature

Baker Municipal Airport (23 miles)

  • Lowest 12 September, 2026

    34.6 °F

  • Average September

    56.1 °F

  • Highest 10 September, 2026

    87.7 °F

Climate (2021–2026)

Baker Municipal Airport (23 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    61.6 °F
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