COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

4:53 AM PDT JUL 20, 2026
Scattered Clouds
70°F
Feels Like: 70°F
Dewpoint: 64°F
Rel. Hum.: 81%
Visibility: 10 miles
Wind: SE at 5 mph
Pressure: 29.90 inches
Last 72 hours

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COSTA MESA, CA 92626
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Patchy fog this morning. Partly cloudy. Highs 75 to 78 at the beaches to 80 to 85 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph this afternoon.
TONIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69. Areas of winds west to 10 mph in the evening becoming light.
TUESDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 75 to 79 at the beaches to 80 to 85 farther inland and near higher coastal terrain. Areas of winds south 10 mph.
TUESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69. Areas of winds southwest 10 mph in the evening becoming light.
WEDNESDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 75 to 79 at the beaches to 81 to 86 farther inland and near higher coastal terrain. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
WEDNESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 66 to 69.
THURSDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 76 to 81 at the beaches to 82 to 87 farther inland and near higher coastal terrain.
THURSDAY NIGHT
Mostly clear. Lows 66 to 69.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 75 to 79 at the beaches to 81 to 86 farther inland and near higher coastal terrain.
FRIDAY NIGHT
Mostly clear. Lows 65 to 69.
SATURDAY
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.
SATURDAY NIGHT
Mostly clear. Lows 66 to 69.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 81 at the beaches to 82 to 87 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  7/19/2026
Monday
20 JUL 2026
COSTA MESA, CA 92626 weather forecast Day 1, 0 hours 11 PM 69° 69° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SSW   5 84% 64°
Low 68° COSTA MESA, CA 92626 weather forecast Day 1, 3 hours 2 AM 69° 69° Mostly Cloudy   CALM 84% 64°
High 81° COSTA MESA, CA 92626 weather forecast Day 1, 6 hours 5 AM 69° 69° Mostly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 84% 64°

Mostly Cloudy



COSTA MESA, CA 92626 weather forecast Day 1, 9 hours 8 AM 70° 70° Mostly Cloudy   CALM 81% 64°
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 79° 81° Partly Cloudy 2%

0% Thunder
( 0% severe)
SW   6 58% 63°
COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 81° 82° Partly Cloudy SW   9 51% 61°
COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 80° 81° Partly Cloudy 3%

0% Thunder
( 0% severe)
WSW   9 51% 60°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 74° 74° Partly Cloudy SW   6 64% 61°
Tuesday
21 JUL 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 70° 70° Partly Cloudy 2%

0% Thunder
( 1% severe)
SSW   5 76% 62°
Low 70° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 70° 70° Partly Cloudy S   5 78% 63°
High 82° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 70° 70° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSE   5 78% 63°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 72° 72° Mostly Cloudy SSE   6 73% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 79° 80° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSW   8 56% 62°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 81° 82° Partly Cloudy SSW   9 51% 61°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 80° 81° Clear 0%

0% Thunder
( 0% severe)
SW   8 52% 61°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 74° 74° Clear SW   8 69% 63°

SANTA ANA, CA extended weather forecast

Wednesday
22 JUL 2026
Thursday
23 JUL 2026
Friday
24 JUL 2026
Saturday
25 JUL 2026
Sunday
26 JUL 2026
Low 68° Low 70° Low 71° Low 70° Low 69°
High 87° High 85° High 84° High 85° High 87°
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
Partly Cloudy
Mostly Cloudy
Partly Cloudy
1% Rain
Partly Cloudy
2% Rain
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