COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

8:53 AM PDT SEP 25, 2026
Broken Clouds
72°F
Feels Like: 72°F
Dewpoint: 66°F
Rel. Hum.: 81%
Visibility: 7 miles
Wind: Calm
Pressure: 29.93 inches
Last 72 hours

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COSTA MESA, CA 92626
Weather Forecast

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TODAY
Mostly cloudy this morning...becoming mostly sunny. Patchy fog this morning. Highs 73 to 78. Light winds becoming southwest 10 mph this afternoon.
TONIGHT
Partly cloudy in the evening...becoming mostly cloudy. Patchy fog. Lows 65 to 69. Areas of winds southwest to 10 mph in the evening becoming light.
FRIDAY
Mostly cloudy in the morning...becoming mostly sunny. Highs around 80 at the beaches to 82 to 86 farther inland and near higher coastal terrain. Light winds becoming west 10 mph in the afternoon.
FRIDAY NIGHT
Partly cloudy. Patchy fog overnight. Lows 65 to 68. Areas of winds west to 10 mph in the evening becoming light.
SATURDAY
Partly cloudy. Highs 79 to 82 at the beaches to 84 to 88 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
SATURDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows around 67.
SUNDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 78 to 83.
SUNDAY NIGHT
Partly cloudy. A slight chance of showers overnight. Lows 64 to 67.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 80.
MONDAY NIGHT
Mostly clear. Lows 62 to 66.
TUESDAY
Partly cloudy with a slight chance of showers in the morning, then mostly sunny in the afternoon. Highs 79 to 83 at the beaches to 83 to 87 farther inland and near higher coastal terrain.
TUESDAY NIGHT
Mostly clear. Lows 66 to 69.
WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 80 to 84 at the beaches to 84 to 88 farther inland and near higher coastal terrain.

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  9/24/2026
Friday
25 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 1, 0 hours 11 PM 70° 70° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 90% 67°
Low 68° COSTA MESA, CA 92626 weather forecast Day 1, 3 hours 2 AM 70° 70° Mostly Cloudy   CALM 87% 66°
High 84° COSTA MESA, CA 92626 weather forecast Day 1, 6 hours 5 AM 69° 69° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 90% 66°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 1, 9 hours 8 AM 71° 71° Mostly Cloudy   CALM 84% 66°
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 80° 82° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 62% 66°
COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 84° 86° Clear WSW   9 53% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 82° 84° Clear 0%

0% Thunder
( 0% severe)
WSW   9 55% 64°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 74° 74° Partly Cloudy WSW   3 76% 66°
Saturday
26 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 72° 72° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   3 81% 66°
Low 69° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 71° 71° Mostly Cloudy   CALM 81% 65°
High 88° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 70° 70° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 84% 65°

Mostly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 72° 72° Mostly Cloudy   CALM 76% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 83° 84° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 51% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 87° 87° Partly Cloudy WSW   8 43% 62°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 84° 85° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   9 48% 62°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 75° 75° Mostly Cloudy SW   3 69% 64°

SANTA ANA, CA extended weather forecast

Sunday
27 SEP 2026
Monday
28 SEP 2026
Tuesday
29 SEP 2026
Wednesday
30 SEP 2026
Thursday
1 OCT 2026
Low 69° Low 64° Low 61° Low 66° Low 65°
High 80° High 80° High 80° High 78° High 77°
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
2% Rain
Partly Cloudy
9% Rain
Clear
5% Rain
Partly Cloudy
2% Rain
Mostly Cloudy
4% Rain
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