Grant Rea Park Weather Forecast
- 70
- 94
Mostly Sunny
- 70
- 97
Hot
- 70
- 97
Hot
- 72
- 95
Mostly Sunny
- 74
- 98
Hot
- 73
- 98
Hot
Today 21 Aug Los Angeles County San Gabriel Valley
Sunny. Highs in the lower to mid 90s. Southwest Winds around 15 Mph in the afternoon.
Tonight 21 Aug Los Angeles County San Gabriel Valley
Mostly clear in the evening then partly cloudy. Lows in the mid to upper 60s.
Grant Rea Park Temperature Statistics
August Temperature
El Monte (5.6 miles)
Lowest 4 August, 2026
69.8 °FAverage August
84.2 °FHighest 19 August, 2026
98.6 °F
Climate (2021–2026)
El Monte (5.6 miles)
Average Low 2021–2026
59.8 °FAverage 2021–2026
70.6 °FAverage High 2021–2026
77.2 °F