COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

3:53 AM PDT JUL 17, 2026
Broken Clouds
70°F
Feels Like: 70°F
Dewpoint: 64°F
Rel. Hum.: 81%
Visibility: 10 miles
Wind: SE at 5 mph
Pressure: 29.88 inches
Last 72 hours

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COSTA MESA, CA 92626
Weather Forecast

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Snow Depth pages
TONIGHT
Partly cloudy. Patchy fog overnight. Lows 63 to 67. Areas of winds south 10 mph.
SATURDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 74 to 77 at the beaches to 78 to 82 farther inland and near higher coastal terrain. Areas of winds south 10 mph.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 62 to 66. Areas of winds south 10 mph in the evening becoming light.
SUNDAY
Mostly cloudy with patchy fog in the morning...becoming partly cloudy. Highs 74 to 77 at the beaches to 79 to 83 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
SUNDAY NIGHT
Partly cloudy. Lows 63 to 67. Areas of winds southwest 10 mph in the evening becoming light.
MONDAY
Mostly cloudy with patchy fog in the morning...becoming partly cloudy. Highs 74 to 78 at the beaches to 79 to 83 farther inland and near higher coastal terrain.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 75 to 79 at the beaches to 80 to 84 farther inland and near higher coastal terrain.
TUESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 65 to 69.
WEDNESDAY
Partly cloudy. Highs 76 to 81 at the beaches to 81 to 86 farther inland and near higher coastal terrain.
WEDNESDAY NIGHT
Partly cloudy. Lows 66 to 70.
THURSDAY
Partly cloudy. Highs 76 to 80 at the beaches to 81 to 86 farther inland and near higher coastal terrain.
THURSDAY NIGHT
Partly cloudy. Lows 65 to 70.

Visible Weather Satellite
COSTA MESA, CA 92626
Infrared Weather Satellite
COSTA MESA, CA 92626
NEXRAD Weather Radar
COSTA MESA, CA 92626

SANTA ANA, CA 3 hourly weather forecast

weather forecast created  5:00 PM PDT  7/16/2026
Friday
17 JUL 2026
COSTA MESA, CA 92626 weather forecast Day 1, 0 hours 11 PM 70° 70° Mostly Cloudy 1%

0% Thunder
( 0% severe)
S   8 84% 65°
Low 69° COSTA MESA, CA 92626 weather forecast Day 1, 3 hours 2 AM 70° 70° Partly Cloudy SSE   7 81% 64°
High 79° COSTA MESA, CA 92626 weather forecast Day 1, 6 hours 5 AM 71° 71° Mostly Cloudy 2%

0% Thunder
( 0% severe)
SE   6 79% 64°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 1, 9 hours 8 AM 71° 71° Mostly Cloudy SSE   8 79% 64°
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 77° 79° Partly Cloudy 3%

0% Thunder
( 0% severe)
S   12 67% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 79° 81° Clear S   12 62% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 77° 79° Clear 3%

0% Thunder
( 0% severe)
S   10 64% 64°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 72° 72° Partly Cloudy S   10 76% 64°
Saturday
18 JUL 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 69° 69° Partly Cloudy 2%

0% Thunder
( 0% severe)
S   8 87% 65°
Low 69° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 69° 69° Partly Cloudy S   6 87% 65°
High 79° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSE   5 84% 65°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 70° 70° Mostly Cloudy S   5 81% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 77° 79° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   8 67% 65°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 79° 81° Clear SW   9 60% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 78° 80° Clear 0%

0% Thunder
( 0% severe)
SW   8 62% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 72° 72° Partly Cloudy SW   7 76% 64°

SANTA ANA, CA extended weather forecast

Sunday
19 JUL 2026
Monday
20 JUL 2026
Tuesday
21 JUL 2026
Wednesday
22 JUL 2026
Thursday
23 JUL 2026
Low 69° Low 70° Low 69° Low 70° Low 71°
High 83° High 87° High 87° High 88° High 85°
COSTA MESA, CA 92626 weather forecast Day 3 COSTA MESA, CA 92626 weather forecast Day 4 COSTA MESA, CA 92626 weather forecast Day 5 COSTA MESA, CA 92626 weather forecast Day 6 COSTA MESA, CA 92626 weather forecast Day 7
Overcast
Partly Cloudy
Partly Cloudy
Overcast
2% Rain
Mostly Cloudy
4% Rain
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