COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

5:53 PM PDT MAR 16, 2026
Few Clouds
Smoke
73°F
Feels Like: 73°F
Dewpoint: 57°F
Rel. Hum.: 57%
Visibility: 10 miles
Wind: SSW at 10 mph
Pressure: 29.89 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 60. Areas of winds west to 10 mph this evening becoming light.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Warmer. Highs 81 to 86 at the beaches to 88 to 93 farther inland and near higher coastal terrain. Light winds becoming west 10 to 15 mph in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows 57 to 61. Areas of winds south to 10 mph.
WEDNESDAY
Mostly sunny. Highs 80 to 83 at the beaches to 85 to 90 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
WEDNESDAY NIGHT
Mostly clear. Lows 57 to 61. Areas of winds south 10 to 15 mph.
THURSDAY
Mostly sunny. Highs 79 to 82 at the beaches to 84 to 88 farther inland and near higher coastal terrain.
THURSDAY NIGHT
Mostly clear. Lows around 60.
FRIDAY
Mostly sunny. Highs 78 to 82 at the beaches to 83 to 88 farther inland and near higher coastal terrain.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows around 59.
SATURDAY
Patchy fog in the morning. Partly cloudy. Highs 75 to 78 at the beaches to 79 to 84 farther inland and near higher coastal terrain.
SATURDAY NIGHT
Partly cloudy. Patchy fog overnight. Lows around 57.
SUNDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 72 to 75 at the beaches to 76 to 80 farther inland and near higher coastal terrain.
SUNDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy. Lows around 56.

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  4:00 AM PST  3/16/2026
Monday
16 MAR 2026
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 10 AM 72° 72° Clear 0%

0% Thunder
( 0% severe)
W   1 53% 54°
High 81° COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 1 PM 80° 80° Clear WSW   7 39% 53°
Clear



COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 4 PM 80° 80° Clear 0%

0% Thunder
( 0% severe)
WSW   8 36% 51°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 7 PM 71° 71° Clear WSW   3 57% 55°
Tuesday
17 MAR 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 10 PM 66° 66° Clear 0%

0% Thunder
( 0% severe)
SW   1 70% 56°
Low 60° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 1 AM 63° 64° Clear SW   1 75% 55°
High 88° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 4 AM 61° 62° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 75% 53°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 7 AM 62° 63° Partly Cloudy   CALM 67% 51°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 10 AM 79° 79° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   1 38% 51°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 1 PM 87° 84° Clear WSW   7 27% 49°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 4 PM 85° 83° Clear 0%

0% Thunder
( 0% severe)
WSW   8 28% 48°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 7 PM 74° 74° Clear WSW   3 48% 53°
Wednesday
18 MAR 2026
COSTA MESA, CA 92626 weather forecast Day 3, 0 hours 10 PM 69° 69° Clear 0%

0% Thunder
( 0% severe)
S   1 59% 54°
Low 62° COSTA MESA, CA 92626 weather forecast Day 3, 3 hours 1 AM 66° 66° Clear   CALM 65% 54°
High 86° COSTA MESA, CA 92626 weather forecast Day 3, 6 hours 4 AM 63° 64° Clear 0%

0% Thunder
( 0% severe)
  CALM 72% 54°

Clear



COSTA MESA, CA 92626 weather forecast Day 3, 9 hours 7 AM 64° 66° Clear   CALM 67% 53°
COSTA MESA, CA 92626 weather forecast Day 3, 15 hours 10 AM 77° 78° Clear 0%

0% Thunder
( 0% severe)
SW   1 45% 54°
COSTA MESA, CA 92626 weather forecast Day 3, 18 hours 1 PM 83° 82° Clear WSW   8 36% 53°
COSTA MESA, CA 92626 weather forecast Day 3, 21 hours 4 PM 81° 80° Clear     WSW   8 37% 52°

SANTA ANA, CA extended weather forecast

Thursday
19 MAR 2026
Friday
20 MAR 2026
Saturday
21 MAR 2026
Sunday
22 MAR 2026
Monday
23 MAR 2026
Low 63° Low 63° Low 64° Low 61° Low 58°
High 88° High 87° High 83° High 74° High 70°
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
1% Rain
Partly Cloudy
3% Rain
Partly Cloudy
6% Rain
Overcast
8% Rain
Overcast
16% Rain
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