Riley Horn Reservoir Weather Forecast
- 44
- 67
Mostly Sunny
- 49
- 75
Mostly Sunny
- 42
- 66
Rain Showers Likely
- 41
- 58
Partly Sunny
- 43
- 65
Mostly Sunny
- 47
- 70
Mostly Sunny
- 52
- 77
Mostly Sunny
Today 1 May Malheur County
Sunny. Highs 68 to 74. Northeast Winds up to 10 Mph.
Tonight 1 May Malheur County
Mostly clear. Lows 37 to 47. East Winds up to 10 Mph.
Riley Horn Reservoir Temperature Statistics
May Temperature
Rome (42.3 miles)
Lowest
–Average May
–Highest
–
Climate (2020–Present)
Rome (42.3 miles)
Average Low 2020–2025
36.5 °FAverage 2020–2025
51.4 °FAverage High 2020–2025
65.8 °F