San Jose Weather Forecast
- 56
- 79
Mostly Sunny
- 57
- 76
Partly Sunny
- 55
- 74
Partly Sunny
- 57
- 77
Partly Sunny
- 58
- 78
Partly Sunny
- 57
- 77
Partly Sunny
- 57
- 78
Mostly Sunny
Today 30 Aug Santa Clara Valley Including San Jose
Sunny. Highs near 80. Northwest Winds 5 to 15 Mph.
Tonight 30 Aug Santa Clara Valley Including San Jose
Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. West Winds 5 to 10 Mph. Becoming south after midnight.
San Jose Temperature Statistics
August Temperature
San Jose, San Jose International Airport (1.9 miles)
Lowest 4 August, 2026
58.6 °FAverage August
71.3 °FHighest 3 August, 2026
91.7 °F
Climate (2021–2026)
San Jose, San Jose International Airport (1.9 miles)
Average Low 2021–2026
52.3 °FAverage 2021–2026
62.1 °FAverage High 2021–2026
72.8 °F