COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

3:53 PM PDT OCT 5, 2026
Few Clouds
93°F
Feels Like: 91°F
Dewpoint: 55°F
Rel. Hum.: 28%
Visibility: 10 miles
Wind: SW at 7 mph
Pressure: 29.81 inches
Last 72 hours

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COSTA MESA, CA 92626
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Clear. Lows around 72. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light.
TUESDAY
Mostly sunny. Highs 87 to 92 at the beaches to 94 to 99 farther inland and near higher coastal terrain. Light winds becoming west 10 mph in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows around 71. Areas of winds west 10 mph in the evening becoming light.
WEDNESDAY
Mostly sunny. Highs 84 to 88 at the beaches to 90 to 95 farther inland and near higher coastal terrain. Light winds becoming west 10 mph in the afternoon.
WEDNESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows around 70. Areas of winds west to 10 mph in the evening becoming light.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Patchy dense fog in the morning. Highs 81 to 86 at the beaches to 88 to 93 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 80 to 84 at the beaches to 86 to 91 farther inland and near higher coastal terrain.
FRIDAY NIGHT
Mostly clear. Lows 66 to 69.
SATURDAY
Partly cloudy. Highs 77 to 81 at the beaches to 82 to 86 farther inland and near higher coastal terrain.
SATURDAY NIGHT
Mostly clear in the evening, then partly cloudy with a slight chance of showers overnight. Lows 64 to 67.
SUNDAY
Partly cloudy with a slight chance of showers. Highs 75 to 80.
SUNDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 61 to 65.

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  9/30/2026
Wednesday
30 SEP 2026
COSTA MESA, CA 92626 weather forecast Day 1, 12 hours 11 AM 78° 80° Partly Cloudy 1%

0% Thunder
( 0% severe)
S   10 60% 63°
High 82° COSTA MESA, CA 92626 weather forecast Day 1, 15 hours 2 PM 81° 82° Clear SSW   9 54% 63°
Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 1, 18 hours 5 PM 78° 80° Clear 0%

0% Thunder
( 0% severe)
SSW   7 62% 64°
COSTA MESA, CA 92626 weather forecast Day 1, 21 hours 8 PM 71° 71° Partly Cloudy   CALM 84% 66°
Thursday
1 OCT 2026
COSTA MESA, CA 92626 weather forecast Day 2, 0 hours 11 PM 68° 68° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSE   5 90% 65°
Low 67° COSTA MESA, CA 92626 weather forecast Day 2, 3 hours 2 AM 67° 67° Partly Cloudy   CALM 90% 64°
High 85° COSTA MESA, CA 92626 weather forecast Day 2, 6 hours 5 AM 67° 67° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 90% 64°

Decreasing Clouds



COSTA MESA, CA 92626 weather forecast Day 2, 9 hours 8 AM 69° 69° Mostly Cloudy NW   1 81% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 12 hours 11 AM 79° 81° Clear 0%

0% Thunder
( 0% severe)
  CALM 58% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 15 hours 2 PM 85° 86° Clear WSW   8 46% 62°
COSTA MESA, CA 92626 weather forecast Day 2, 18 hours 5 PM 82° 83° Clear 0%

0% Thunder
( 0% severe)
WSW   9 53% 63°
COSTA MESA, CA 92626 weather forecast Day 2, 21 hours 8 PM 74° 74° Clear WSW   3 74% 65°
Friday
2 OCT 2026
COSTA MESA, CA 92626 weather forecast Day 3, 0 hours 11 PM 71° 71° Clear 0%

0% Thunder
( 0% severe)
  CALM 81% 65°
Low 69° COSTA MESA, CA 92626 weather forecast Day 3, 3 hours 2 AM 70° 70° Partly Cloudy NNW   3 78% 63°
High 91° COSTA MESA, CA 92626 weather forecast Day 3, 6 hours 5 AM 69° 69° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   3 78% 62°

Partly Cloudy



COSTA MESA, CA 92626 weather forecast Day 3, 9 hours 8 AM 72° 72° Partly Cloudy NNE   3 66% 60°
COSTA MESA, CA 92626 weather forecast Day 3, 15 hours 11 AM 85° 85° Clear 0%

0% Thunder
( 0% severe)
  CALM 45% 61°
COSTA MESA, CA 92626 weather forecast Day 3, 18 hours 2 PM 91° 91° Clear W   9 37% 61°
COSTA MESA, CA 92626 weather forecast Day 3, 21 hours 5 PM 88° 88° Clear     W   12 40% 61°

SANTA ANA, CA extended weather forecast

Saturday
3 OCT 2026
Sunday
4 OCT 2026
Monday
5 OCT 2026
Tuesday
6 OCT 2026
Wednesday
7 OCT 2026
Low 69° Low 69° Low 69° Low 68° Low 69°
High 95° High 92° High 92° High 90° High 90°
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
Clear
2% Rain
Clear
1% Rain
Clear
2% Rain
Clear
4% Rain
Clear
4% Rain
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