Sisters Weather Forecast
- 46
- 76
Rain Showers Likely
- 49
- 81
Partly Sunny
- 47
- 81
Mostly Sunny
- 47
- 83
Mostly Sunny
- 49
- 84
Sunny
- 53
- 87
Sunny
Today 16 Aug East Slopes of the Oregon Cascades
Mostly cloudy. Rain Showers in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the lower 60s to lower 70s, except in the lower to mid 70s Valleys. Chance of precipitation 90 percent. Rainfall Amounts up to a half of an inch Possible, except higher Amounts possible in Thunderstorms.
Tonight 16 Aug East Slopes of the Oregon Cascades
Partly cloudy. A 20 percent chance of Showers and Thunderstorms in the evening. Lows in the 40s. Gusts up to 20 Mph in the evening.
Sisters Temperature Statistics
August Temperature
Redmond Roberts Field (19.9 miles)
Lowest 8 August, 2025
36.6 °FAverage August
70.1 °FHighest 11 August, 2025
100.7 °F
Climate (2020–Present)
Redmond Roberts Field (19.9 miles)
Average Low 2020–2025
35.7 °FAverage 2020–2025
51.3 °FAverage High 2020–2025
65.6 °F