Collins Reservoir Weather Forecast
- 52
- 81
Mostly Sunny
- 55
- 82
Slight Chance Thunderstorms
- 57
- 84
Chance Rain Showers
- 61
- 87
Chance Rain Showers
- 60
- 87
Chance Rain Showers
- 56
- 83
Chance Rain Showers
- 55
- 79
Slight Chance Thunderstorms
Today 26 Jul Ochoco-John Day Highlands
Mostly clear.
Tonight 26 Jul Ochoco-John Day Highlands
Mostly clear. A 20 percent chance of Showers and Thunderstorms in the evening. Lows in the mid 40s to lower 50s. Gusts up to 20 Mph in the evening.
Collins Reservoir Temperature Statistics
July Temperature
Prineville Airport (47.8 miles)
Lowest 5 July, 2025
37.4 °FAverage July
70.7 °FHighest 8 July, 2025
96.8 °F
Climate (2020–Present)
Prineville Airport (47.8 miles)
Average Low 2020–2025
34.1 °FAverage 2020–2025
49.3 °FAverage High 2020–2025
62.8 °F