Fossil Weather Forecast

    • 57
    • 79

    Increasing Clouds

    • 58
    • 81

    Partly Sunny

    • 56
    • 80

    Partly Sunny

    • 50
    • 74

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 57
    • 80

    Chance Rain Showers

Today 18 Sep Foothills of the Southern Blue Mountains of Oregon

Sunny. Highs in the upper 70s to lower 80s. West wind 5 to 10 Mph.

Tonight 18 Sep Foothills of the Southern Blue Mountains of Oregon

Partly cloudy. Lows in the mid to upper 50s. North wind 5 to 10 Mph shifting to the southwest overnight.

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Fossil Temperature Statistics

September Temperature

Prineville Airport (59.7 miles)

  • Lowest 15 September, 2025

    33.8 °F

  • Average September

    66.3 °F

  • Highest 2 September, 2025

    96.8 °F

Climate (2020–Present)

Prineville Airport (59.7 miles)

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  • Average Low 2020–2025

    34.3 °F

  • Average 2020–2025

    49.4 °F

  • Average High 2020–2025

    62.8 °F
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