Sand Hollow Reservoir Weather Forecast
- 60
- 85
Mostly Sunny
- 64
- 91
Sunny
- 65
- 94
Mostly Sunny
- 62
- 91
Mostly Sunny
- 63
- 90
Mostly Sunny
- 66
- 93
Mostly Sunny
- 67
- 95
Mostly Sunny
Today 20 May Lower Washington County
Sunny. Highs in the upper 80s.
Tonight 20 May Lower Washington County
Clear. Lows around 60.
Sand Hollow Reservoir Temperature Statistics
May Temperature
St George Municipal Airport (8.1 miles)
Lowest 7 May, 2025
48 °FAverage May
70 °FHighest 10 May, 2025
95 °F
Climate (2020–Present)
St George Municipal Airport (8.1 miles)
Average Low 2020–2025
52.2 °FAverage 2020–2025
64.3 °FAverage High 2020–2025
76.6 °F