Rainbow Bay Weather Forecast

    • 37
    • 65

    Mostly Sunny

    • 39
    • 68

    Mostly Sunny

    • 42
    • 74

    Mostly Sunny

    • 43
    • 75

    Mostly Sunny

    • 41
    • 72

    Partly Sunny

    • 43
    • 74

    Mostly Sunny

Today 28 Sep Siskiyou Mountains and Southern Oregon Cascades

Sunny. Highs in the lower 60s to lower 70s. Northeast Winds around 5 Mph shifting to the northwest this afternoon.

Tonight 28 Sep Siskiyou Mountains and Southern Oregon Cascades

Mostly clear. Lows in the lower to mid 40s. Northwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Bay Temperature Statistics

September Temperature

Klamath Falls International Airport (29.2 miles)

  • Lowest 7 September, 2026

    31.6 °F

  • Average September

    55.2 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Klamath Falls International Airport (29.2 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

    63.3 °F
Get WillyWeather+ to remove ads