Altadena Weather Forecast
- 54
- 74
Mostly Sunny
- 55
- 73
Mostly Sunny
- 52
- 77
Mostly Sunny
- 53
- 74
Partly Sunny
- 59
- 82
Mostly Sunny
- 61
- 88
Mostly Sunny
- 58
- 87
Partly Sunny
Today 19 Mar Los Angeles County San Gabriel Valley
Sunny. Highs in the mid to upper 70s.
Tonight 19 Mar Los Angeles County San Gabriel Valley
Mostly clear. Lows in the mid 40s to mid 50s.
Altadena Temperature Statistics
March Temperature
El Monte (8.7 miles)
Lowest 15 March, 2025
42.8 °FAverage March
58.8 °FHighest 9 March, 2025
75.2 °F
Climate (2020–Present)
El Monte (8.7 miles)
Average Low 2020–2025
59.5 °FAverage 2020–2025
70.4 °FAverage High 2020–2025
77.1 °F