Grindstone Reservoir Weather Forecast
- 34
- 56
Rain/Snow
- 32
- 46
Rain/Snow
- 27
- 45
Rain/Snow Likely
- 30
- 50
Snow Likely
- 22
- 44
Snow Likely
- 21
- 43
Slight Chance Snow
Today 11 Apr Ochoco-John Day Highlands
Mostly cloudy. A chance of rain in the Morning, then rain Showers likely and a chance of Thunderstorms in the afternoon. Highs in the mid to upper 50s. Southwest wind 5 to 15 Mph in the afternoon. Gusts up to 25 Mph. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.
Tonight 11 Apr Ochoco-John Day Highlands
Mostly cloudy. Rain Showers and a chance of Thunderstorms in the Evening, then a chance of rain and high mountain snow overnight. No high mountain snow accumulation. Lows in the mid to upper 30s. Gusts up to 20 Mph in the evening. Chance of precipitation 80 percent.
Grindstone Reservoir Temperature Statistics
April Temperature
Burns Municipal Airport (46 miles)
Lowest 3 April, 2026
19.7 °FAverage April
44.9 °FHighest 6 April, 2026
73.7 °F
Climate (2021–Present)
Burns Municipal Airport (46 miles)
Average Low 2021–2026
32.3 °FAverage 2021–2026
47.9 °FAverage High 2021–2026
62.7 °F