Castaic Lake, CA 7-Day Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Castaic Lake, CA 7-Day Weather Forecast

Current Conditions

Settings
Castaic Lake CA weather  - Clear - 90°F
Clear
90°F
Updated 6:40 am
Feels Like 67°F
Humidity 20%
Wind S 14 mph
Barometer  30.19 in
Dew Point 44°F
Castaic Lake CA weather  - Clear - 32°C
Clear
32°C
Updated 6:40 am
Feels Like 20°C
Humidity 20%
Wind S 23 km/h
Barometer  102.2 kPa
Dew Point 7°C
Weather in Castaic LakeCastaic Lake Weather

Castaic Lake Weather Forecast

Weather Castaic LakeCastaic Lake weather forecast

Castaic Lake, CA Weather Forecast Date: 201 AM PDT Sat Aug 08 2026

Weather forecast for Castaic Lake, CA


Today
Castaic Lake CA Weather for Today - Sunny
Hi: 99°FHi: 37°C
Lo: 66°F
Lo: 19°C
Today... Sunny. Highs 95 to 101. Southwest winds 10 to 20 mph in the afternoon.
Sun
Castaic Lake CA Weather for Sunday - Sunny
Hi: 98°FHi: 37°C
Lo: 67°F
Lo: 19°C
Sunday... Sunny. Highs 94 to 100. Southwest winds 10 to 20 mph in the afternoon.
Mon
Castaic Lake CA Weather for Monday - Partly Cloudy
Hi: 93°FHi: 34°C
Lo: 63°F
Lo: 17°C
Monday... Sunny in the morning then partly cloudy. Highs in the lower to mid 90s. Southwest winds 10 to 20 mph in the afternoon.
Tue
Castaic Lake CA Weather for Tuesday - Sunny
Hi: 90°FHi: 32°C
Lo: 63°F
Lo: 17°C
Tuesday... Sunny. Highs around 90.
Wed
Castaic Lake CA Weather for Wednesday - Partly Cloudy
Hi: 86°FHi: 30°C
Lo: 60°F
Lo: 16°C
Wednesday... Sunny in the morning then partly cloudy. Highs in the mid 80s to around 90.
Thu
Castaic Lake CA Weather for Thursday - Partly Cloudy
Hi: 83°FHi: 28°C
Lo: 60°F
Lo: 16°C
Thursday... Sunny in the morning then partly cloudy. Highs in the lower to mid 80s.
Fri
Castaic Lake CA Weather for Friday - Sunny
Hi: 83°FHi: 28°C
Friday... Sunny. Highs in the lower to mid 80s.

Trending Headlines

Castaic Lake Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Castaic Lake Quick Facts

National Two Day Weather Forecast

E-mail the Castaic Lake Weather Forecast

Voice your opinion or tell us about page issues...