Fossil Park Weather Forecast

    • 37
    • 56

    Decreasing Clouds

    • 38
    • 54

    Mostly Sunny

    • 43
    • 59

    Mostly Sunny

    • 51
    • 66

    Mostly Sunny

    • 55
    • 71

    Partly Sunny

    • 49
    • 67

    Partly Sunny

    • 48
    • 67

    Mostly Sunny

Today 29 May Southern Blue Mountains of Oregon

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the upper 50s to mid 60s. West wind 5 to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 29 May Southern Blue Mountains of Oregon

Mostly cloudy. A 20 percent chance of rain Showers in the evening. Lows in the 30s. Northwest wind 5 to 15 Mph in the Evening, becoming light. Gusts up to 30 Mph.

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Fossil Park Temperature Statistics

May Temperature

Prineville Airport (57.2 miles)

  • Lowest 14 May, 2026

    26.6 °F

  • Average May

    57.5 °F

  • Highest 12 May, 2026

    87.8 °F

Climate (2021–Present)

Prineville Airport (57.2 miles)

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  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    63.2 °F
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