Collier Memorial State Park Weather Forecast

    • 53
    • 90

    Increasing Clouds

    • 48
    • 87

    Mostly Cloudy

    • 41
    • 81

    Mostly Sunny

    • 45
    • 83

    Mostly Sunny

    • 45
    • 85

    Mostly Sunny

    • 45
    • 84

    Partly Sunny

    • 44
    • 84

    Mostly Sunny

Today 20 Aug Klamath Basin

Sunny then becoming partly cloudy early this afternoon then becoming mostly cloudy. Highs in the mid 80s to lower 90s. South Winds 5 to 10 Mph.

Tonight 20 Aug Klamath Basin

Mostly cloudy. Lows in the lower 50s to lower 60s. Southwest Winds 10 to 15 Mph decreasing to around 5 Mph after Midnight, then shifting to the southeast well after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Collier Memorial State Park Temperature Statistics

August Temperature

Klamath Falls International Airport (34.8 miles)

  • Lowest 2 August, 2026

    41.6 °F

  • Average August

    68.8 °F

  • Highest 7 August, 2026

    97.6 °F

Climate (2021–2026)

Klamath Falls International Airport (34.8 miles)

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

  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    63.4 °F
Get WillyWeather+ to remove ads