Saint John Mountain Weather Forecast
- 57
- 69
Mostly Sunny
- 52
- 65
Sunny
- 50
- 65
Sunny
- 41
- 69
Mostly Sunny
- 44
- 59
Mostly Sunny
- 46
- 63
Mostly Sunny
Saint John Mountain Temperature Statistics
May Temperature
Ukiah Municipal Airport (34.2 miles)
Lowest 18 May, 2026
44.1 °FAverage May
65.6 °FHighest 11 May, 2026
94.6 °F
Climate (2021–Present)
Ukiah Municipal Airport (34.2 miles)
Average Low 2021–2026
47.2 °FAverage 2021–2026
61 °FAverage High 2021–2026
76.3 °F