Sisters Weather Forecast

    • 37
    • 57

    Rain Showers Likely

    • 44
    • 73

    Chance Rain Showers

    • 43
    • 77

    Rain Showers

    • 34
    • 62

    Slight Chance Rain Showers

    • 33
    • 65

    Mostly Sunny

    • 37
    • 68

    Mostly Sunny

Today 26 May East Slopes of the Oregon Cascades

Mostly cloudy. A 50 percent chance of rain and high mountain snow Showers in the afternoon. Highs in the mid 40s to mid 50s, except in the 50s Valleys. Gusts up to 20 Mph in the afternoon.

Tonight 26 May East Slopes of the Oregon Cascades

Mostly cloudy. A chance of rain and high mountain snow Showers in the Evening, then rain and high mountain snow Showers likely overnight. No high mountain snow accumulation. Lows in the lower 30s to lower 40s. Chance of precipitation 70 percent.

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Sisters Temperature Statistics

May Temperature

Redmond Roberts Field (19.9 miles)

  • Lowest 14 May, 2026

    25.6 °F

  • Average May

    56 °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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