The Arboretum Weather Forecast
- 66
- 100
Hot
- 66
- 99
Hot
- 65
- 94
Mostly Sunny
- 61
- 84
Partly Sunny
- 54
- 77
Chance Rain Showers
- 52
- 73
Chance Rain Showers
Today 7 Oct Los Angeles County San Gabriel Valley
Sunny. Highs 98 to 102.
Tonight 7 Oct Los Angeles County San Gabriel Valley
Clear. Lows in the mid 60s to mid 70s.
The Arboretum Temperature Statistics
October Temperature
El Monte (4.3 miles)
Lowest 1 October, 2026
66.2 °FAverage October
92 °FHighest 2 October, 2026
104 °F
Climate (2021–2026)
El Monte (4.3 miles)
Average Low 2021–2026
60 °FAverage 2021–2026
70.7 °FAverage High 2021–2026
77.4 °F