COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

2:53 PM PDT AUG 28, 2026
Scattered Clouds
86°F
Feels Like: 92°F
Dewpoint: 72°F
Rel. Hum.: 63%
Visibility: 10 miles
Wind: SSW at 15 mph
Pressure: 29.84 inches
Last 72 hours

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COSTA MESA, CA 92626
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows 69 to 72. Areas of winds south 10 mph this evening becoming light.
SATURDAY
Mostly sunny. Highs 80 to 84 at the beaches to 86 to 91 farther inland and near higher coastal terrain. Light winds becoming southwest 10 to 15 mph in the afternoon.
SATURDAY NIGHT
Mostly clear. Lows 66 to 70. Areas of winds west 10 mph in the evening becoming light.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 80 at the beaches to 82 to 86 farther inland and near higher coastal terrain. Areas of winds south to 10 mph.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 64 to 67. Areas of winds southwest 10 mph in the evening becoming light.
MONDAY
Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 75 to 78 at the beaches to 80 to 84 farther inland and near higher coastal terrain.
MONDAY NIGHT
Mostly clear. Lows 63 to 66.
TUESDAY
Partly cloudy. A slight chance of showers in the afternoon. Highs 75 to 79 at the beaches to 80 to 85 farther inland and near higher coastal terrain.
TUESDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 65 to 68.
WEDNESDAY
Partly cloudy. A slight chance of showers in the morning. Highs 76 to 80 at the beaches to 82 to 86 farther inland and near higher coastal terrain.
WEDNESDAY NIGHT
Partly cloudy. Lows 65 to 68.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 80 at the beaches to 82 to 87 farther inland and near higher coastal terrain.
THURSDAY NIGHT
Partly cloudy. 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 AM PDT  8/28/2026
Friday
28 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 86° 91° Partly Cloudy 1%

0% Thunder
( 3% severe)
SW   5 59% 70°
High 91° COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 90° 95° Clear SSW   8 50% 69°
Clear



COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 86° 89° Clear 2%

0% Thunder
( 2% severe)
SW   8 55% 68°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 78° 80° Clear SSW   3 76% 70°
Saturday
29 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 75° 75° Clear 1%

0% Thunder
( 0% severe)
SSW   6 84% 70°
Low 72° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 74° 74° Clear S   5 87% 70°
High 87° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 72° 72° Partly Cloudy 1%

0% Thunder
( 0% severe)
E   3 93% 70°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 75° 75° Partly Cloudy SW   3 84% 70°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 84° 88° Clear 1%

0% Thunder
( 1% severe)
SW   7 63% 70°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 87° 90° Clear SW   10 53% 68°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 83° 86° Clear 0%

0% Thunder
( 0% severe)
WSW   10 61% 68°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 75° 75° Clear SW   8 82% 69°
Sunday
30 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 3, 0 hours 11 PM 72° 72° Clear 0%

0% Thunder
( 0% severe)
SSW   8 87% 68°
Low 70° COSTA MESA, CA 92626 weather forecast Day 3, 3 hours 2 AM 71° 71° Clear S   6 90% 68°
High 82° COSTA MESA, CA 92626 weather forecast Day 3, 6 hours 5 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSE   5 93% 68°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 3, 9 hours 8 AM 73° 73° Partly Cloudy SSE   7 84% 68°
COSTA MESA, CA 92626 weather forecast Day 3, 15 hours 11 AM 80° 82° Clear 0%

0% Thunder
( 0% severe)
S   12 65% 67°
COSTA MESA, CA 92626 weather forecast Day 3, 18 hours 2 PM 82° 84° Clear SW   12 56% 65°
COSTA MESA, CA 92626 weather forecast Day 3, 21 hours 5 PM 79° 81° Clear     SW   9 62% 65°

SANTA ANA, CA extended weather forecast

Monday
31 AUG 2026
Tuesday
1 SEP 2026
Wednesday
2 SEP 2026
Thursday
3 SEP 2026
Friday
4 SEP 2026
Low 68° Low 66° Low 67° Low 66° Low 66°
High 78° High 82° High 84° High 80° High 81°
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
3% Rain
Partly Cloudy
4% Rain
Partly Cloudy
9% Rain
Partly Cloudy
5% Rain
Partly Cloudy
9% Rain
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