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City of Costa Mesa, CaliforniaCosta Mesa, CA 14 Day Weather - 92626 WeatherWorld.com
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Costa Mesa, CA Weather Forecast
Costa Mesa, CA Weather Forecast Dated: 1138 AM Thu Sep 10 2026
Expect a very warm period with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Thursday, September 10, 2026
Mid-Morning
82°F 28°C
Partly Cloudy
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
79°F 26°C
Sunny
Warm and summery near 84°F 29°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds out of the S at 11 mph 18 km/h.
Friday, September 11, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
80°F 26°C
Sunny
Early-Evening
75°F 24°C
Sunny
Balmy with temperatures reaching 80°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the SSE to the S at 9 mph 15 km/h.
Saturday, September 12, 2026
Mid-Morning
73°F 23°C
Partly Cloudy
Mid-Afternoon
76°F 25°C
Sunny
Early-Evening
73°F 23°C
Sunny
Enjoyable around 76°F 25°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the SSE to the S at 7 mph 12 km/h.
Sunday, September 13, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
76°F 25°C
Sunny
Early-Evening
73°F 23°C
Sunny
Mild temperatures up to 76°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SSE to the S at 8 mph 12 km/h.
Monday, September 14, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
72°F 22°C
Sunny
Mild with a high of 75°F 24°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the S at 13 mph 20 km/h.
Tuesday, September 15, 2026
Mid-Morning
71°F 21°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
72°F 23°C
Sunny
Pleasant near 75°F 24°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the SSE to the SSW at 7 mph 12 km/h.
Wednesday, September 16, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
73°F 23°C
Sunny
Comfortable with temperatures reaching 76°F 24°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the SW at 9 mph 15 km/h.
Thursday, September 17, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
79°F 26°C
Cloudy
Early-Evening
76°F 25°C
Cloudy
Enjoyable around 79°F 26°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds moving from the SSW to the SW at 7 mph 12 km/h.
Friday, September 18, 2026
Mid-Morning
76°F 24°C
Sunny
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
79°F 26°C
Sunny
Warm temperatures up to 83°F 28°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the WSW to the SSW at 8 mph 13 km/h.
Saturday, September 19, 2026
Mid-Morning
76°F 24°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
78°F 26°C
Sunny
Very warm with a high of 81°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the SW to the SSW at 8 mph 13 km/h.
Sunday, September 20, 2026
Mid-Morning
74°F 23°C
Cloudy
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
73°F 23°C
Sunny
Pleasant near 77°F 25°C, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds blowing from the S at 13 mph 20 km/h.
Monday, September 21, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
72°F 22°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the SSE to the SW at 7 mph 11 km/h.
Tuesday, September 22, 2026
Mid-Morning
73°F 23°C
Partly Cloudy
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
77°F 26°C
Partly Cloudy
Quite warm around 81°F 27°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the W to the WSW at 8 mph 13 km/h.
Wednesday, September 23, 2026
Mid-Morning
76°F 24°C
Nearby Thunderstorms
Mid-Afternoon
82°F 28°C
Scattered Showers
Early-Evening
78°F 26°C
Sunny
Warm temperatures up to 82°F 28°C, locally heavy thunderstorms at times, with steady humidity and steady pressure. Winds blowing from the SW at 9 mph 14 km/h.
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