Sisters Weather Forecast

    • 36
    • 70

    Increasing Clouds

    • 39
    • 72

    Partly Sunny

    • 39
    • 72

    Mostly Sunny

    • 41
    • 74

    Partly Sunny

    • 39
    • 74

    Partly Sunny

    • 39
    • 71

    Mostly Sunny

Today 28 Sep East Slopes of the Oregon Cascades

Sunny. Widespread frost in the morning. Highs in the upper 50s to upper 60s, except in the upper 60s to lower 70s Valleys.

Tonight 28 Sep East Slopes of the Oregon Cascades

Mostly clear. Lows in the mid 30s to lower 40s. Gusts up to 20 Mph in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sisters Temperature Statistics

September Temperature

Redmond Roberts Field (19.9 miles)

  • Lowest 23 September, 2026

    33.7 °F

  • Average September

    56.2 °F

  • Highest 9 September, 2026

    88.6 °F

Climate (2021–2026)

Redmond Roberts Field (19.9 miles)

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

  • Average Low 2021–2026

    35.5 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    65.6 °F
Get WillyWeather+ to remove ads