COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

6:53 PM PDT SEP 3, 2026
Few Clouds
72°F
Feels Like: 72°F
Dewpoint: 61°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: W at 7 mph
Pressure: 29.87 inches
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COSTA MESA, CA 92626
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear this evening...becoming partly cloudy. Lows 61 to 66. Areas of winds west to 10 mph this evening becoming light.
FRIDAY
Partly cloudy in the morning...becoming sunny. Highs 73 to 76 at the beaches to 76 to 81 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows 61 to 65. Areas of winds west 10 mph in the evening becoming light.
SATURDAY
Mostly sunny in the morning...becoming partly cloudy. 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.
SATURDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 66 to 69. Areas of winds west 10 mph in the evening becoming light. Chance of measurable precipitation 20 percent.
SUNDAY
Partly cloudy with a chance of showers. Highs 76 to 80 at the beaches to 81 to 85 farther inland and near higher coastal terrain.
SUNDAY NIGHT
Partly cloudy. Lows 65 to 68.
LABOR DAY
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.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 65 to 69.
TUESDAY
Partly cloudy. Highs 77 to 81 at the beaches to 83 to 88 farther inland and near higher coastal terrain.
TUESDAY NIGHT
Partly cloudy. Lows 66 to 69.
WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 78 to 82 at the beaches to 84 to 89 farther inland and near higher coastal terrain.
WEDNESDAY NIGHT
Mostly clear. Lows 66 to 69.

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  9/ 3/2026
Thursday
3 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 76° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   9 66% 64°
High 79° COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 78° 80° Clear SSW   12 60% 63°
Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 76° 78° Clear 0%

0% Thunder
( 0% severe)
WSW   12 62% 62°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 69° 69° Partly Cloudy WSW   7 81% 63°
Friday
4 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 67° 67° Partly Cloudy 4%

0% Thunder
( 0% severe)
SSW   6 87% 63°
Low 65° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 66° 66° Partly Cloudy SE   6 90% 63°
High 78° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 65° 65° Mostly Cloudy 2%

0% Thunder
( 0% severe)
ESE   5 90% 62°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 68° 68° Mostly Cloudy ESE   6 84% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 76° 78° Clear 0%

0% Thunder
( 0% severe)
SSW   7 64% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 78° 80° Clear SW   10 60% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 77° 79° Clear 0%

0% Thunder
( 0% severe)
WSW   9 60% 62°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 70° 70° Clear WSW   6 81% 64°
Saturday
5 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 3, 0 hours 11 PM 68° 68° Clear 0%

0% Thunder
( 0% severe)
WSW   6 87% 64°
Low 65° COSTA MESA, CA 92626 weather forecast Day 3, 3 hours 2 AM 66° 66° Clear SE   3 90% 63°
High 81° COSTA MESA, CA 92626 weather forecast Day 3, 6 hours 5 AM 65° 65° Clear 1%

0% Thunder
( 0% severe)
  CALM 87% 61°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 3, 9 hours 8 AM 69° 69° Partly Cloudy ENE   3 76% 61°
COSTA MESA, CA 92626 weather forecast Day 3, 15 hours 11 AM 78° 80° Partly Cloudy 5%

0% Thunder
( 1% severe)
  CALM 56% 61°
COSTA MESA, CA 92626 weather forecast Day 3, 18 hours 2 PM 81° 82° Partly Cloudy SW   9 51% 61°
COSTA MESA, CA 92626 weather forecast Day 3, 21 hours 5 PM 79° 80° Mostly Cloudy     SW   9 52% 60°

SANTA ANA, CA extended weather forecast

Sunday
6 SEP 2026
Monday
7 SEP 2026
Tuesday
8 SEP 2026
Wednesday
9 SEP 2026
Thursday
10 SEP 2026
Low 67° Low 65° Low 65° Low 65° Low 64°
High 80° High 79° High 78° High 77° High 79°
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
10% Rain
Clear
5% Rain
Partly Cloudy
4% Rain
Partly Cloudy
6% Rain
Partly Cloudy
9% Rain
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