El Cajon Weather Forecast
- 48
- 81
Mostly Cloudy
- 46
- 74
Partly Sunny
- 48
- 76
Mostly Sunny
- 48
- 80
Mostly Sunny
- 49
- 76
Mostly Cloudy
- 46
- 68
Chance Rain Showers
Today 5 Feb San Diego County Inland Valleys
Partly cloudy in the morning. Becoming mostly cloudy. Highs around 80 in the western Valleys to 72 to 77 near the Foothills. Areas of Winds east 15 to 25 Mph with Gusts to 40 Mph becoming southwest 10 to 15 Mph with Gusts to 30 Mph in the afternoon.
Tonight 5 Feb San Diego County Inland Valleys
Cloudy in the Evening, then partly cloudy with a slight chance of Showers overnight. Cooler. Lows 48 to 55. Areas of Winds east to 10 Mph. Chance of measurable precipitation 20 percent.
El Cajon Temperature Statistics
February Temperature
Gillespie Field Airport (1.9 miles)
Lowest 1 February, 2026
42.8 °FAverage February
53.5 °FHighest 1 February, 2026
82.4 °F
Climate (2021–Present)
Gillespie Field Airport (1.9 miles)
Average Low 2021–2026
53.2 °FAverage 2021–2026
60.3 °FAverage High 2021–2026
75.9 °F