Grindstone Reservoir Weather Forecast
- 46
- 86
Areas Smoke
- 44
- 82
Areas Smoke
- 45
- 79
Partly Sunny
- 45
- 80
Chance Rain Showers
- 47
- 83
Partly Sunny
- 48
- 84
Mostly Cloudy
- 47
- 81
Chance Rain Showers
Today 11 Aug Ochoco-John Day Highlands
Sunny. Patchy smoke. Highs in the 80s.
Tonight 11 Aug Ochoco-John Day Highlands
Mostly clear. Patchy smoke in the Evening, then Areas of smoke overnight. Lows in the lower 40s to lower 50s. Northwest wind 5 to 15 Mph in the Evening, becoming light.
Grindstone Reservoir Temperature Statistics
August Temperature
Burns Municipal Airport (46 miles)
Lowest 4 August, 2026
38.6 °FAverage August
70 °FHighest 5 August, 2026
98.7 °F
Climate (2021–2026)
Burns Municipal Airport (46 miles)
Average Low 2021–2026
32 °FAverage 2021–2026
47.6 °FAverage High 2021–2026
62.5 °F