Prospect Slough - French Island Weather Forecast
- 55
- 80
Sunny
- 57
- 88
Sunny
- 56
- 91
Mostly Sunny
- 55
- 88
Mostly Sunny
- 58
- 90
Sunny
- 56
- 88
Mostly Sunny
Prospect Slough - French Island Temperature Statistics
May Temperature
Fairfield / Travis Air Force Base (13.7 miles)
Lowest 27 May, 2026
46.6 °FAverage May
64.4 °FHighest 20 May, 2026
93 °F
Climate (2021–Present)
Fairfield / Travis Air Force Base (13.7 miles)
Average Low 2021–2026
48.9 °FAverage 2021–2026
60.5 °FAverage High 2021–2026
74.8 °F