Johnson Reservoir Weather Forecast
- 49
- 79
Mostly Sunny
- 53
- 82
Mostly Sunny
- 60
- 86
Slight Chance Rain Showers
- 57
- 90
Slight Chance Thunderstorms
- 55
- 85
Slight Chance Thunderstorms
- 54
- 81
Slight Chance Thunderstorms
Today 28 Jun Owyhee Mountains
Sunny. Highs 78 to 83.
Tonight 28 Jun Owyhee Mountains
Mostly clear. Lows 49 to 57.
Johnson Reservoir Temperature Statistics
June Temperature
Mountain Home Air Force Base (46 miles)
Lowest 21 June, 2025
38.6 °FAverage June
70 °FHighest 9 June, 2025
98.7 °F
Climate (2020–Present)
Mountain Home Air Force Base (46 miles)
Average Low 2020–2025
39.5 °FAverage 2020–2025
52.2 °FAverage High 2020–2025
64.9 °F