COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

1:53 PM PDT AUG 25, 2026
Scattered Clouds
86°F
Feels Like: 89°F
Dewpoint: 68°F
Rel. Hum.: 55%
Visibility: 10 miles
Wind: SSW at 10 mph
Pressure: 29.90 inches
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COSTA MESA, CA 92626
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows around 70. Areas of winds southwest to 10 mph this evening becoming light.
WEDNESDAY
Partly cloudy. Highs 82 to 87 at the beaches to 89 to 94 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
WEDNESDAY NIGHT
Partly cloudy. Patchy fog overnight. Lows 69 to 72. Areas of winds south to 10 mph in the evening becoming light.
THURSDAY
Patchy fog in the morning. Partly cloudy. Highs 84 to 89 at the beaches to 92 to 97 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
THURSDAY NIGHT
Partly cloudy. Patchy fog overnight. Lows 70 to 73. Areas of winds southwest 10 mph in the evening becoming light.
FRIDAY
Patchy fog in the morning. Partly cloudy. Highs 85 to 90 at the beaches to 93 to 98 farther inland and near higher coastal terrain.
FRIDAY NIGHT
Partly cloudy. Lows 70 to 73.
SATURDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 80 to 85 at the beaches to 87 to 92 farther inland and near higher coastal terrain.
SATURDAY NIGHT
Mostly clear. Lows around 70.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 77 to 81 at the beaches to 83 to 88 farther inland and near higher coastal terrain.
SUNDAY NIGHT
Mostly clear. Lows 65 to 68.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 75 to 79 at the beaches to 81 to 86 farther inland and near higher coastal terrain.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 64 to 68.

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 AM PDT  8/25/2026
Tuesday
25 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 83° 86° Partly Cloudy 0%

0% Thunder
( 1% severe)
SW   3 59% 67°
High 87° COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 86° 88° Clear SW   8 51% 66°
Clear



COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 84° 86° Clear 1%

0% Thunder
( 1% severe)
SW   8 53% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 76° 77° Clear SSW   3 74% 67°
Wednesday
26 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 73° 73° Clear 1%

0% Thunder
( 0% severe)
SSW   5 81% 67°
Low 72° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 73° 73° Partly Cloudy SSW   3 81% 67°
High 89° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 72° 72° Partly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 81% 66°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 76° 78° Partly Cloudy SSW   3 71% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 85° 88° Clear 0%

0% Thunder
( 2% severe)
SSW   2 55% 67°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 88° 90° Partly Cloudy SW   7 48% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 86° 88° Partly Cloudy 0%

0% Thunder
( 1% severe)
SW   7 51% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 78° 80° Partly Cloudy SSW   2 71% 68°
Thursday
27 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 3, 0 hours 11 PM 75° 75° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   5 76% 67°
Low 73° COSTA MESA, CA 92626 weather forecast Day 3, 3 hours 2 AM 74° 74° Partly Cloudy S   3 79% 67°
High 90° COSTA MESA, CA 92626 weather forecast Day 3, 6 hours 5 AM 73° 73° Mostly Cloudy 1%

0% Thunder
( 2% severe)
  CALM 79% 66°

Mostly Cloudy



COSTA MESA, CA 92626 weather forecast Day 3, 9 hours 8 AM 76° 78° Mostly Cloudy SSE   2 71% 66°
COSTA MESA, CA 92626 weather forecast Day 3, 15 hours 11 AM 86° 88° Partly Cloudy 1%

0% Thunder
( 2% severe)
  CALM 51% 66°
COSTA MESA, CA 92626 weather forecast Day 3, 18 hours 2 PM 90° 92° Partly Cloudy SW   8 45% 66°
COSTA MESA, CA 92626 weather forecast Day 3, 21 hours 5 PM 87° 89° Partly Cloudy     SW   8 48% 65°

SANTA ANA, CA extended weather forecast

Friday
28 AUG 2026
Saturday
29 AUG 2026
Sunday
30 AUG 2026
Monday
31 AUG 2026
Tuesday
1 SEP 2026
Low 73° Low 72° Low 71° Low 67° Low 65°
High 91° High 85° High 81° High 80° High 82°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
1% Rain
Partly Cloudy
2% Rain
Partly Cloudy
3% Rain
Partly Cloudy
3% Rain
Partly Cloudy
4% Rain
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