Grant Rea Park Weather Forecast
- 51
- 70
Increasing Clouds
- 54
- 71
Increasing Clouds
- 57
- 66
Rain Showers
- 55
- 64
Rain Showers
- 52
- 64
Rain Showers
- 48
- 62
Rain Showers
- 47
- 63
Chance Rain Showers
Today 21 Dec Los Angeles County San Gabriel Valley
Mostly cloudy in the morning then sunny. Highs around 70.
Tonight 21 Dec Los Angeles County San Gabriel Valley
Mostly clear in the evening then low Clouds and fog. Lows in the upper 40s to mid 50s.
Grant Rea Park Temperature Statistics
December Temperature
El Monte (5.6 miles)
Lowest 6 December, 2025
46.4 °FAverage December
67.8 °FHighest 9 December, 2025
84.2 °F
Climate (2020–Present)
El Monte (5.6 miles)
Average Low 2020–2025
59.4 °FAverage 2020–2025
70.2 °FAverage High 2020–2025
76.9 °F