Westmont Weather Forecast
- 57
- 82
Mostly Sunny
- 55
- 82
Mostly Sunny
- 53
- 73
Partly Sunny
- 53
- 74
Partly Sunny
- 56
- 74
Mostly Cloudy
- 53
- 70
Chance Rain
Today 20 Oct Santa Clara Valley Including San Jose
Sunny. Highs in the lower 80s. Northwest Winds 5 to 10 Mph.
Tonight 20 Oct Santa Clara Valley Including San Jose
Mostly clear. Lows in the mid 50s. Northwest Winds around 5 Mph in the evening. Becoming light.
Westmont Temperature Statistics
October Temperature
San Jose, San Jose International Airport (6.8 miles)
Lowest 14 October, 2025
48.9 °FAverage October
63.7 °FHighest 6 October, 2025
86 °F
Climate (2020–Present)
San Jose, San Jose International Airport (6.8 miles)
Average Low 2020–2025
51.8 °FAverage 2020–2025
61.5 °FAverage High 2020–2025
72.4 °F