COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

9:53 PM PDT SEP 12, 2026
Overcast
Mist
73°F
Feels Like: 73°F
Dewpoint: 68°F
Rel. Hum.: 84%
Visibility: 6 miles
Wind: SW at 5 mph
Pressure: 29.91 inches
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COSTA MESA, CA 92626
Weather Forecast

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Snow Depth pages
TONIGHT
Partly cloudy. Patchy fog overnight. Lows 65 to 68. Areas of winds southwest 10 mph this evening becoming light.
SUNDAY
Mostly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 76 to 79 at the beaches to 80 to 84 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 63 to 67. Areas of winds southwest to 10 mph becoming southeast 10 mph overnight.
MONDAY
Partly cloudy 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.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 62 to 66. Areas of winds south 10 to 15 mph.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 73 to 78.
TUESDAY NIGHT
Mostly clear. Lows 60 to 65.
WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs around 74 at the beaches to 76 to 80 farther inland and near higher coastal terrain.
WEDNESDAY NIGHT
Mostly clear. Lows 60 to 65.
THURSDAY
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.
THURSDAY NIGHT
Mostly clear. Lows 62 to 66.
FRIDAY
Mostly sunny. Highs 78 to 83 at the beaches to 84 to 88 farther inland and near higher coastal terrain.
FRIDAY NIGHT
Mostly clear. Lows 65 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 PM PDT  9/12/2026
Sunday
13 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 1, 0 hours 11 PM 71° 71° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SSW   5 90% 68°
Low 68° COSTA MESA, CA 92626 weather forecast Day 1, 3 hours 2 AM 70° 70° Partly Cloudy S   5 93% 68°
High 81° COSTA MESA, CA 92626 weather forecast Day 1, 6 hours 5 AM 69° 69° Mostly Cloudy 0%

0% Thunder
( 0% severe)
S   3 93% 67°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 1, 9 hours 8 AM 71° 71° Mostly Cloudy SE   6 87% 67°
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 78° 80° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   8 69% 67°
COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 81° 83° Clear SSW   9 58% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 79° 81° Clear 0%

0% Thunder
( 0% severe)
SW   7 60% 64°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 72° 72° Clear SW   3 84% 67°
Monday
14 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 70° 70° Partly Cloudy 1%

0% Thunder
( 0% severe)
S   6 90% 67°
Low 67° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 69° 69° Partly Cloudy SE   7 90% 66°
High 79° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 68° 68° Partly Cloudy 1%

0% Thunder
( 0% severe)
ESE   6 93% 66°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 71° 71° Partly Cloudy SE   8 84% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 77° 79° Clear 0%

0% Thunder
( 0% severe)
S   12 69% 66°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 79° 81° Clear S   12 62% 65°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 77° 79° Clear 0%

0% Thunder
( 0% severe)
SSW   9 64% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 70° 70° Partly Cloudy S   8 87% 66°

SANTA ANA, CA extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
Low 71° Low 67° Low 68° Low 66° Low 66°
High 80° High 80° High 79° High 79° High 82°
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
Partly Cloudy
Mostly Cloudy
1% Rain
Partly Cloudy
2% Rain
Partly Cloudy
1% Rain
Partly Cloudy
3% Rain
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