Weather WorldCastaic Lagoon, CA 14 Day Weather
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Castaic Lagoon, CA Weather Forecast
Castaic Lagoon, CA Weather Forecast Dated: 1155 AM Tue Sep 22 2026
Expect a very warm period with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Tuesday, September 22, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
72°F 22°C
Sunny
Warm and summery near 84°F 29°C, sunny throughout the day, with lower humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
78°F 26°C
Sunny
Balmy with temperatures reaching 89°F 32°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the NE to the ESE at 5 mph 8 km/h.
Thursday, September 24, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
90°F 32°C
Sunny
Early-Evening
78°F 26°C
Sunny
Sizzling hot with 90°F 32°C, sunny throughout the day, with increasing humidity and steady pressure. Winds switching from the NE to the SW at 6 mph 9 km/h.
Friday, September 25, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
75°F 24°C
Sunny
Warm temperatures up to 86°F 30°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with increasing humidity and steady pressure. Winds moving from the SSE to the NNE at 6 mph 10 km/h.
Saturday, September 26, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
84°F 29°C
Partly Cloudy
Early-Evening
74°F 23°C
Overcast
Very warm with a high of 84°F 29°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the SSW to the WSW at 8 mph 13 km/h.
Sunday, September 27, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
70°F 21°C
Sunny
Pleasant near 79°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the WNW to the S at 9 mph 14 km/h.
Monday, September 28, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
72°F 23°C
Sunny
Balmy with temperatures reaching 80°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the SE to the NE at 9 mph 14 km/h.
Tuesday, September 29, 2026
Mid-Morning
74°F 24°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
78°F 26°C
Sunny
Quite warm around 86°F 30°C, sunny throughout the day, with steady humidity and steady pressure. Winds easing from NE 12 mph 19 km/h to SSW 4 mph 6 km/h.
Wednesday, September 30, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
88°F 31°C
Sunny
Early-Evening
77°F 25°C
Sunny
Warm temperatures up to 88°F 31°C, sunny throughout the day, with increasing humidity and steady pressure. Winds moving from the E to the SSW at 6 mph 9 km/h.
Thursday, October 1, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
66°F 19°C
Sunny
Mildly cool near 63°F 17°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Friday, October 2, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
81°F 28°C
Sunny
Warm and summery near 86°F 30°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the NE to the SSW at 5 mph 8 km/h.
Saturday, October 3, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
79°F 26°C
Sunny
Balmy with temperatures reaching 85°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the E to the SW at 8 mph 13 km/h.
Sunday, October 4, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
85°F 30°C
Sunny
Quite warm around 89°F 32°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the ENE at 9 mph 15 km/h.
Monday, October 5, 2026
Mid-Morning
75°F 24°C
Scattered Showers
Mid-Afternoon
65°F 18°C
Light Showers
Early-Evening
62°F 17°C
Light Showers
Mildly cool near 65°F 18°C, scattered downpours possible, with increasing humidity and steady pressure. Winds NNE at 12 mph 19 km/h. Gusts up to 24 mph 39 km/h.
Castaic Lagoon, CA Weather Radar Map
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