Castaic Lagoon Weather Forecast
- 67
- 96
Hot
- 69
- 102
Hot
- 68
- 102
Hot
- 67
- 98
Hot
- 66
- 98
Hot
- 64
- 96
Hot
Today 22 Jul Santa Clarita Valley
Sunny. Highs in the mid 90s.
Tonight 22 Jul Santa Clarita Valley
Clear. Lows in the mid to upper 60s. North Winds 10 to 20 Mph after midnight.
Castaic Lagoon Temperature Statistics
July Temperature
Van Nuys, Van Nuys Airport (21.1 miles)
Lowest 2 July, 2026
58.6 °FAverage July
78.5 °FHighest 15 July, 2026
101.6 °F
Climate (2021–2026)
Van Nuys, Van Nuys Airport (21.1 miles)
Average Low 2021–2026
56.5 °FAverage 2021–2026
67.6 °FAverage High 2021–2026
79.5 °F