COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

12:53 PM PDT AUG 19, 2026
Clear
84°F
Feels Like: 86°F
Dewpoint: 66°F
Rel. Hum.: 55%
Visibility: 10 miles
Wind: SSW at 9 mph
Pressure: 29.89 inches
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COSTA MESA, CA 92626
Weather Forecast

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TONIGHT
Mostly clear this evening...becoming partly cloudy. Lows 66 to 69. Areas of winds south 10 mph this evening becoming light.
THURSDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 76 to 80 at the beaches to 82 to 87 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. Lows 66 to 69. Areas of winds south to 10 mph in the evening becoming light.
FRIDAY
Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 76 to 80 at the beaches to 82 to 87 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69. Areas of winds southwest to 10 mph in the evening becoming light.
SATURDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 78 to 83 at the beaches to 84 to 89 farther inland and near higher coastal terrain.
SATURDAY NIGHT
Mostly clear. Lows 66 to 70.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 77 to 82 at the beaches to 83 to 88 farther inland and near higher coastal terrain.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 77 to 82 at the beaches to 83 to 88 farther inland and near higher coastal terrain.
MONDAY NIGHT
Mostly clear. Lows 66 to 70.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 78 to 83 at the beaches to 84 to 89 farther inland and near higher coastal terrain.
TUESDAY NIGHT
Mostly clear. Lows around 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 AM PDT  8/19/2026
Wednesday
19 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 82° 84° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 56% 65°
High 86° COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 85° 86° Partly Cloudy SW   8 50% 64°
Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 83° 85° Clear 0%

0% Thunder
( 0% severe)
SW   9 55% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 75° 75° Clear SSW   6 76% 67°
Thursday
20 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 71° 71° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   6 87% 67°
Low 70° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 70° 70° Partly Cloudy S   3 87% 66°
High 84° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 70° 70° Partly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 87% 66°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 72° 72° Partly Cloudy S   3 81% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 81° 84° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSW   6 63% 67°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 84° 86° Partly Cloudy SW   8 55% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 81° 83° Clear 0%

0% Thunder
( 0% severe)
SW   8 60% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 74° 74° Partly Cloudy SSW   5 82% 68°
Friday
21 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 3, 0 hours 11 PM 71° 71° Partly Cloudy 1%

0% Thunder
( 1% severe)
S   3 87% 67°
Low 70° COSTA MESA, CA 92626 weather forecast Day 3, 3 hours 2 AM 70° 70° Partly Cloudy S   3 90% 67°
High 84° COSTA MESA, CA 92626 weather forecast Day 3, 6 hours 5 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 1% severe)
  CALM 87% 66°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 3, 9 hours 8 AM 72° 72° Mostly Cloudy   CALM 81% 66°
COSTA MESA, CA 92626 weather forecast Day 3, 15 hours 11 AM 81° 84° Partly Cloudy 0%

0% Thunder
( 1% severe)
SW   3 63% 67°
COSTA MESA, CA 92626 weather forecast Day 3, 18 hours 2 PM 84° 86° Clear SW   8 55% 66°
COSTA MESA, CA 92626 weather forecast Day 3, 21 hours 5 PM 82° 84° Partly Cloudy     WSW   8 58% 66°

SANTA ANA, CA extended weather forecast

Saturday
22 AUG 2026
Sunday
23 AUG 2026
Monday
24 AUG 2026
Tuesday
25 AUG 2026
Wednesday
26 AUG 2026
Low 71° Low 70° Low 71° Low 71° Low 71°
High 90° High 88° High 90° High 87° High 85°
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
2% Rain
Partly Cloudy
2% Rain
Partly Cloudy
6% Rain
Partly Cloudy
9% Rain
Partly Cloudy
2% Rain
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