COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

9:53 PM PDT MAY 21, 2026
Broken Clouds
63°F
Feels Like: 63°F
Dewpoint: 57°F
Rel. Hum.: 81%
Visibility: 10 miles
Wind: SSW at 6 mph
Pressure: 29.86 inches
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COSTA MESA, CA 92626
Weather Forecast

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TONIGHT
Mostly clear this evening...becoming partly cloudy. Patchy fog overnight. Lows 55 to 59. Areas of winds southwest 10 mph this evening becoming light.
FRIDAY
Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs around 70 at the beaches to 72 to 76 farther inland and near higher coastal terrain. Areas of winds south to 10 mph becoming southwest in the afternoon.
FRIDAY NIGHT
Partly cloudy in the evening...becoming mostly cloudy overnight with patchy fog. Lows 54 to 58. Areas of winds southwest 10 mph in the evening becoming light.
SATURDAY
Mostly cloudy with patchy fog in the morning... Becoming partly cloudy. Highs around 69 at the beaches to 71 to 75 farther inland and near higher coastal terrain. Areas of winds southwest to 10 mph becoming west in the afternoon.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 54 to 57. Areas of winds west 10 to 15 mph in the evening becoming light.
SUNDAY
Patchy fog in the morning. Partly cloudy. Highs 68 to 73.
SUNDAY NIGHT
Clear in the evening...becoming partly cloudy. Lows 54 to 57.
MEMORIAL DAY
Partly cloudy. Highs 67 to 71.
MONDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 53 to 57.
TUESDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 66 to 70.
TUESDAY NIGHT
Partly cloudy. Lows 54 to 57.
WEDNESDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 65 to 69.
WEDNESDAY NIGHT
Mostly clear. Lows 53 to 57.

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  5/21/2026
Friday
22 MAY 2026
COSTA MESA, CA 92626 weather forecast Day 1, 0 hours 11 PM 62° 63° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SSW   3 84% 57°
Low 59° COSTA MESA, CA 92626 weather forecast Day 1, 3 hours 2 AM 60° 61° Mostly Cloudy SSW   2 90% 57°
High 72° COSTA MESA, CA 92626 weather forecast Day 1, 6 hours 5 AM 60° 61° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 90% 57°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 1, 9 hours 8 AM 63° 64° Mostly Cloudy SSE   3 81% 57°
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 69° 69° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSW   9 66% 57°
COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 72° 72° Clear SW   12 57% 56°
COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 70° 70° Clear 1%

0% Thunder
( 0% severe)
WSW   10 59% 55°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 63° 63° Partly Cloudy WSW   8 78% 56°
Saturday
23 MAY 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 61° 61° Mostly Cloudy 1%

0% Thunder
( 0% severe)
WSW   5 87% 57°
Low 59° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 59° 60° Mostly Cloudy   CALM 93% 57°
High 72° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 59° 60° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 93% 57°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 62° 63° Mostly Cloudy   CALM 81% 56°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 69° 69° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   8 63% 56°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 72° 72° Clear WSW   13 57% 56°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 70° 70° Clear 0%

0% Thunder
( 0% severe)
WSW   12 59% 55°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 63° 62° Partly Cloudy WSW   9 78% 56°

SANTA ANA, CA extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
Low 62° Low 59° Low 59° Low 61° Low 61°
High 74° High 74° High 70° High 70° High 73°
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
Mostly Cloudy
Overcast
1% Rain
Mostly Cloudy
1% Rain
Overcast
18% Rain
Mostly Cloudy
21% Rain
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