COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

8:53 AM PDT AUG 4, 2026
Overcast
72°F
Feels Like: 72°F
Dewpoint: 64°F
Rel. Hum.: 76%
Visibility: 10 miles
Wind: SSW at 5 mph
Pressure: 29.87 inches
Last 72 hours

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COSTA MESA, CA 92626
Weather Forecast

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Snow Depth pages
TODAY
Partly cloudy with patchy fog this morning...becoming mostly sunny. Highs 74 to 77 at the beaches to 79 to 84 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph this afternoon.
TONIGHT
Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 65 to 68. Areas of winds southwest to 10 mph in the evening becoming light.
WEDNESDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 74 to 78 at the beaches to 79 to 84 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
WEDNESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 65 to 68. Areas of winds west to 10 mph in the evening becoming light.
THURSDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 75 to 79 at the beaches to 81 to 86 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
THURSDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 66 to 69.
FRIDAY
Mostly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 74 to 79 at the beaches to 80 to 85 farther inland and near higher coastal terrain.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69.
SATURDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 80 at the beaches to 81 to 86 farther inland and near higher coastal terrain.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 79 at the beaches to 81 to 86 farther inland and near higher coastal terrain.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69.
MONDAY
Partly cloudy. Highs 75 to 78 at the beaches to 79 to 84 farther inland and near higher coastal terrain.

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  8/ 3/2026
Tuesday
4 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 1, 0 hours 11 PM 70° 70° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SSW   3 84% 65°
Low 67° COSTA MESA, CA 92626 weather forecast Day 1, 3 hours 2 AM 68° 68° Mostly Cloudy   CALM 90% 65°
High 82° COSTA MESA, CA 92626 weather forecast Day 1, 6 hours 5 AM 68° 68° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 87% 64°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 1, 9 hours 8 AM 70° 70° Mostly Cloudy   CALM 81% 64°
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 79° 81° Clear 0%

0% Thunder
( 0% severe)
SW   6 64% 66°
COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 81° 83° Clear SW   9 58% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 80° 82° Clear 1%

0% Thunder
( 0% severe)
SW   9 60% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 73° 73° Partly Cloudy WSW   7 76% 65°
Wednesday
5 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 70° 70° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSW   2 84% 65°
Low 68° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 68° 68° Partly Cloudy   CALM 90% 65°
High 82° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 68° 68° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 87% 64°

Decreasing Clouds



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

0% Thunder
( 0% severe)
SW   6 62% 65°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 82° 84° Clear WSW   10 56% 65°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 80° 82° Clear 0%

0% Thunder
( 0% severe)
WSW   10 58% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 73° 73° Partly Cloudy SW   7 73% 64°

SANTA ANA, CA extended weather forecast

Thursday
6 AUG 2026
Friday
7 AUG 2026
Saturday
8 AUG 2026
Sunday
9 AUG 2026
Monday
10 AUG 2026
Low 69° Low 70° Low 69° Low 70° Low 71°
High 80° High 82° High 82° High 81° High 81°
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
Mostly Cloudy
Partly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
3% Rain
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