Weather WorldCastaic Lake, CA 7-Day Weather Forecast
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Castaic Lake Weather Forecast
Castaic Lake, CA Weather Forecast Date: 201 PM PDT Mon Oct 12 2026
Weather forecast for Castaic Lake, CA
Tonight Lo: 46°F Lo: 8°C |
Tonight... Partly cloudy with a 20% chance of showers in the evening, becoming mostly clear after midnight. Lows in the 40s to around 50. Southwest winds 10 to 20 mph in the evening. |
Tue Hi: 70°FHi: 21°C Lo: 46°F Lo: 8°C |
Tuesday... Sunny. Highs in the upper 60s to mid 70s. |
| Wed Hi: 80°FHi: 27°C Lo: 53°F Lo: 12°C |
Wednesday... Sunny. Highs around 80. Northeast winds 15 to 25 mph. |
| Thu Hi: 83°FHi: 28°C Lo: 61°F Lo: 16°C |
Thursday... Sunny. Highs in the lower to mid 80s. |
| Fri Hi: 83°FHi: 28°C Lo: 61°F Lo: 16°C |
Friday... Sunny. Highs in the lower to mid 80s. |
| Sat Hi: 85°FHi: 29°C Lo: 60°F Lo: 16°C |
Saturday... Sunny. Highs in the mid 80s. |
| Sun Hi: 85°FHi: 29°C Lo: 57°F Lo: 14°C |
Sunday... Sunny. Highs in the mid 80s. |
Castaic Lake Radar Loop
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