Sisters Weather Forecast

    • 43
    • 81

    Partly Sunny

    • 38
    • 73

    Partly Sunny

    • 41
    • 71

    Partly Sunny

    • 40
    • 73

    Mostly Cloudy

    • 34
    • 59

    Chance Rain Showers

    • 34
    • 61

    Partly Sunny

Today 21 Sep East Slopes of the Oregon Cascades

Partly cloudy. Highs in the 70s, except in the upper 70s to lower 80s Valleys.

Tonight 21 Sep East Slopes of the Oregon Cascades

Mostly cloudy. Lows in the 40s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sisters Temperature Statistics

September Temperature

Redmond Roberts Field (19.9 miles)

  • Lowest 12 September, 2026

    34.6 °F

  • Average September

    55.8 °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