San Marino Weather Forecast
- 74
- 104
Hot
- 72
- 105
Hot
- 70
- 98
Hot
- 70
- 97
Hot
- 69
- 95
Partly Sunny
- 64
- 88
Partly Sunny
Today 5 Oct Los Angeles County San Gabriel Valley
Sunny. Highs 99 to 109.
Tonight 5 Oct Los Angeles County San Gabriel Valley
Mostly clear. Lows in the upper 60s to mid 70s except around 80 in the Hills.
San Marino Temperature Statistics
October Temperature
El Monte (5 miles)
Lowest 1 October, 2026
66.2 °FAverage October
90.7 °FHighest 2 October, 2026
104 °F
Climate (2021–2026)
El Monte (5 miles)
Average Low 2021–2026
60 °FAverage 2021–2026
70.7 °FAverage High 2021–2026
77.3 °F