El Capitan Reservoir Weather Forecast
- 54
- 80
Decreasing Clouds
- 53
- 80
Mostly Sunny
- 52
- 79
Mostly Sunny
- 55
- 81
Mostly Sunny
- 59
- 84
Sunny
- 63
- 89
Mostly Sunny
Today 18 Jun San Diego County Inland Valleys
Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 73 to 76 in the western Valleys to 75 to 80 near the Foothills. Areas of Winds southwest to 10 Mph becoming west this afternoon.
Tonight 18 Jun San Diego County Inland Valleys
Partly cloudy in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 52 to 58. Areas of Winds west to 10 Mph in the evening becoming light.
El Capitan Reservoir Temperature Statistics
June Temperature
Ramona, Ramona Airport (11.8 miles)
Lowest 9 June, 2026
46 °FAverage June
67.3 °FHighest 12 June, 2026
93.9 °F
Climate (2021–2026)
Ramona, Ramona Airport (11.8 miles)
Average Low 2021–2026
51.6 °FAverage 2021–2026
64.6 °FAverage High 2021–2026
76.9 °F