Vasona Reservoir Weather Forecast
- 49
- 56
Partly Sunny
- 56
- 66
Chance Rain
- 48
- 66
Slight Chance Rain
- 50
- 66
Chance Rain
- 52
- 63
Chance Rain
Today 15 Dec Santa Clara Valley Including San Jose
Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower 60s. Northwest Winds 5 to 10 Mph.
Tonight 15 Dec Santa Clara Valley Including San Jose
Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s. Northwest Winds 5 to 10 Mph.
Vasona Reservoir Temperature Statistics
December Temperature
San Jose, San Jose International Airport (8.1 miles)
Lowest 12 December, 2025
39 °FAverage December
48.8 °FHighest 3 December, 2025
64.9 °F
Climate (2020–Present)
San Jose, San Jose International Airport (8.1 miles)
Average Low 2020–2025
51.9 °FAverage 2020–2025
61.5 °FAverage High 2020–2025
72.4 °F