COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

11:53 AM PDT AUG 22, 2026
Clear
81°F
Feels Like: 84°F
Dewpoint: 70°F
Rel. Hum.: 69%
Visibility: 10 miles
Wind: SSW at 10 mph
Pressure: 29.96 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. Patchy fog overnight. Lows around 68. Areas of winds southwest to 10 mph this evening becoming light.
SUNDAY
Partly cloudy in the morning...becoming sunny. Highs 78 to 83 at the beaches to 86 to 91 farther inland and near higher coastal terrain. Light winds becoming west 10 to 15 mph in the afternoon.
SUNDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows around 70. Areas of winds west to 10 mph in the evening becoming light.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 77 to 82 at the beaches to 84 to 89 farther inland and near higher coastal terrain. Light winds becoming west 10 to 15 mph in the afternoon.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows around 70. Areas of winds southwest 10 mph in the evening becoming light.
TUESDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 81 to 86 at the beaches to 88 to 93 farther inland and near higher coastal terrain.
TUESDAY NIGHT
Mostly clear. Lows 69 to 73.
WEDNESDAY
Mostly sunny. Highs 84 to 89 at the beaches to 91 to 96 farther inland and near higher coastal terrain.
WEDNESDAY NIGHT
Mostly clear. Lows 70 to 73.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 84 to 89 at the beaches to 91 to 96 farther inland and near higher coastal terrain.
THURSDAY NIGHT
Partly cloudy. Lows 69 to 73.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 83 to 88 at the beaches to 90 to 95 farther inland and near higher coastal terrain.
FRIDAY NIGHT
Mostly clear. Lows 69 to 72.

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  8/22/2026
Saturday
22 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 82° 84° Clear 0%

0% Thunder
( 1% severe)
SW   3 58% 66°
High 87° COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 86° 88° Clear SW   8 50% 65°
Clear



COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 84° 86° Clear 0%

0% Thunder
( 1% severe)
SW   8 53% 65°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 76° 78° Clear SW   3 71% 66°
Sunday
23 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 72° 72° Clear 0%

0% Thunder
( 0% severe)
SSW   3 81% 66°
Low 70° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 71° 71° Partly Cloudy   CALM 84% 66°
High 88° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 70° 70° Partly Cloudy 0%

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

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 73° 73° Partly Cloudy   CALM 76% 65°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 84° 86° Clear 0%

0% Thunder
( 1% severe)
  CALM 53% 65°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 88° 89° Clear WSW   8 45% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 85° 86° Clear 1%

0% Thunder
( 1% severe)
WSW   9 50% 64°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 76° 78° Clear SW   5 71% 66°
Monday
24 AUG 2026
COSTA MESA, CA 92626 weather forecast Day 3, 0 hours 11 PM 73° 73° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSW   2 79% 66°
Low 71° COSTA MESA, CA 92626 weather forecast Day 3, 3 hours 2 AM 72° 72° Partly Cloudy   CALM 81% 66°
High 87° COSTA MESA, CA 92626 weather forecast Day 3, 6 hours 5 AM 71° 71° Partly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 81% 65°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 3, 9 hours 8 AM 73° 73° Mostly Cloudy   CALM 76% 65°
COSTA MESA, CA 92626 weather forecast Day 3, 15 hours 11 AM 84° 86° Partly Cloudy 7%

0% Thunder
( 1% severe)
SW   3 53% 65°
COSTA MESA, CA 92626 weather forecast Day 3, 18 hours 2 PM 87° 88° Clear WSW   10 46% 64°
COSTA MESA, CA 92626 weather forecast Day 3, 21 hours 5 PM 84° 86° Partly Cloudy     WSW   10 53% 65°

SANTA ANA, CA extended weather forecast

Tuesday
25 AUG 2026
Wednesday
26 AUG 2026
Thursday
27 AUG 2026
Friday
28 AUG 2026
Saturday
29 AUG 2026
Low 71° Low 71° Low 72° Low 72° Low 71°
High 90° High 87° High 87° High 88° High 87°
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
Partly Cloudy
Partly Cloudy
1% Rain
Partly Cloudy
2% Rain
Partly Cloudy
2% Rain
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