COSTA MESA, CA 92626 Weather Forecast & Current Conditions

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SANTA ANA, CA
Current Weather

3:53 PM PDT OCT 7, 2026
Few Clouds
86°F
Feels Like: 88°F
Dewpoint: 66°F
Rel. Hum.: 51%
Visibility: 10 miles
Wind: SW at 6 mph
Pressure: 29.80 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. Lows around 68. Areas of winds west to 10 mph this evening becoming light.
THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 84 at the beaches to 86 to 90 farther inland and near higher coastal terrain. Light winds becoming west 10 mph in the afternoon.
THURSDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 65 to 68. Areas of winds southwest to 10 mph in the evening becoming light.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs around 80 at the beaches to 82 to 86 farther inland and near higher coastal terrain. Light winds becoming southwest 10 mph in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 64 to 67. Areas of winds southwest 10 mph in the evening becoming light.
SATURDAY
Mostly cloudy in the morning...becoming partly cloudy. Highs 74 to 77 at the beaches to 77 to 81 farther inland and near higher coastal terrain.
SATURDAY NIGHT
Partly cloudy. A chance of showers overnight. Lows 62 to 66.
SUNDAY
Mostly cloudy in the morning...becoming partly cloudy. A chance of showers. Highs 71 to 75.
SUNDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly cloudy with showers likely overnight. Lows 57 to 61.
COLUMBUS DAY
Mostly cloudy with showers likely in the morning, then partly cloudy with a chance of showers in the afternoon. Highs 68 to 72.
MONDAY NIGHT
Partly cloudy with a chance of showers. Lows 55 to 59.
TUESDAY
Partly cloudy. A chance of showers. Highs 68 to 73.
TUESDAY NIGHT
Mostly clear. Lows 56 to 59.

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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