Sisters Weather Forecast

    • 40
    • 72

    Decreasing Clouds

    • 42
    • 75

    Mostly Sunny

    • 43
    • 80

    Sunny

    • 41
    • 80

    Mostly Sunny

    • 41
    • 79

    Partly Sunny

    • 34
    • 67

    Chance Rain Showers

    • 36
    • 58

    Chance Rain Showers

Today 20 May East Slopes of the Oregon Cascades

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

Tonight 20 May East Slopes of the Oregon Cascades

Partly cloudy. Lows in the upper 30s to lower 40s. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sisters Temperature Statistics

May Temperature

Redmond Roberts Field (19.9 miles)

  • Lowest 14 May, 2026

    25.6 °F

  • Average May

    55.5 °F

  • Highest 12 May, 2026

    87.7 °F

Climate (2021–Present)

Redmond Roberts Field (19.9 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    65.8 °F
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