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Costa Mesa, California weather · now

66°

Cloudy

High / Low
75° / 63°
Wind
12 mph SSE
Humidity
83%
No precipitation expected in the next 1.7 hours.
ModerateAir quality PollenTreeNoneGrassHighWeedLow
Sun 5:50 AM 8:04 PM 14h 14m
Moon Waning Crescent 12% lit

Current weather and 7-day forecast for Costa Mesa, California, sourced directly from the National Weather Service. Expect partly sunny today. Today's high is 75° with a low near 63°. 1 active weather alert in effect.

What to wear today

Long sleeves or short — your call

Sweet spot at 75°F. Most people will be comfortable in either.

Next 24 hours

60° 70° 80° ↑ 74° ↓ 63° 3 AM 6 AM 9 AM 12 PM 3 PM 6 PM 9 PM 12 AM

  1. 3 AM

    63°

    0%

  2. 5 AM

    63°

    0%

  3. 7 AM

    64°

    0%

  4. 9 AM

    67°

    0%

  5. 11 AM

    71°

    0%

  6. 1 PM

    73°

    0%

  7. 3 PM

    74°

    0%

  8. 5 PM

    73°

    2%

  9. 7 PM

    71°

    2%

  10. 9 PM

    66°

    2%

  11. 11 PM

    66°

    2%

  12. 1 AM

    66°

    2%

Live radar

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Live cameras nearby

See what it actually looks like out there.

Feeds from public state DOT systems. Images may briefly stale, rotate, or go offline during maintenance.

7 days

  1. Today 7/11 Partly Sunny 4% 75° · 63°
    1. 3 AM 63° Mostly Cloudy
    2. 4 AM 63° Mostly Cloudy
    3. 5 AM 63° Mostly Cloudy
    4. 6 AM 63° Mostly Cloudy
    5. 7 AM 64° Mostly Cloudy
    6. 8 AM 65° Mostly Cloudy
    7. 9 AM 67° Mostly Cloudy
    8. 10 AM 69° Mostly Cloudy
    9. 11 AM 71° Mostly Sunny
    10. 12 PM 72° Mostly Sunny
    11. 1 PM 73° Mostly Sunny
    12. 2 PM 74° Partly Sunny
    13. 3 PM 74° Partly Sunny
    14. 4 PM 73° Partly Sunny
    15. 5 PM 73° Mostly Sunny 2%
    16. 6 PM 72° Partly Cloudy 2%
    17. 7 PM 71° Partly Cloudy 2%
    18. 8 PM 68° Partly Cloudy 2%
    19. 9 PM 66° Partly Cloudy 2%
    20. 10 PM 66° Partly Cloudy 2%
    21. 11 PM 66° Mostly Cloudy 2%
  2. Sun 7/12 Mostly Sunny 6% 77° · 67°
    1. 12 AM 66° Mostly Cloudy 2%
    2. 1 AM 66° Mostly Cloudy 2%
    3. 2 AM 66° Mostly Cloudy 2%
    4. 3 AM 66° Mostly Cloudy 2%
    5. 4 AM 67° Mostly Cloudy 2%
    6. 5 AM 66° Mostly Cloudy 4%
    7. 6 AM 67° Partly Sunny 4%
    8. 7 AM 66° Partly Sunny 4%
    9. 8 AM 67° Mostly Cloudy 4%
    10. 9 AM 69° Mostly Cloudy 4%
    11. 10 AM 71° Mostly Cloudy 4%
    12. 11 AM 73° Mostly Sunny 4%
    13. 12 PM 74° Mostly Sunny 4%
    14. 1 PM 75° Mostly Sunny 4%
    15. 2 PM 75° Sunny 4%
    16. 3 PM 76° Sunny 4%
    17. 4 PM 75° Sunny 4%
    18. 5 PM 74° Sunny 3%
    19. 6 PM 74° Mostly Clear 3%
    20. 7 PM 72° Mostly Clear 3%
    21. 8 PM 70° Mostly Clear 3%
    22. 9 PM 68° Mostly Clear 3%
    23. 10 PM 68° Mostly Clear 3%
    24. 11 PM 67° Mostly Cloudy 1%
  3. Mon 7/13 Mostly Sunny 6% 77° · 68°
    1. 12 AM 67° Mostly Cloudy 1%
    2. 1 AM 67° Mostly Cloudy 1%
    3. 2 AM 68° Mostly Cloudy 1%
    4. 3 AM 68° Mostly Cloudy 1%
    5. 4 AM 68° Mostly Cloudy 1%
    6. 5 AM 68° Mostly Cloudy 6%
    7. 6 AM 68° Partly Sunny 6%
    8. 7 AM 68° Partly Sunny 6%
    9. 8 AM 68° Partly Sunny 6%
    10. 9 AM 70° Partly Sunny 6%
    11. 10 AM 72° Partly Sunny 6%
    12. 11 AM 74° Mostly Sunny 4%
    13. 12 PM 75° Mostly Sunny 4%
    14. 1 PM 76° Mostly Sunny 4%
    15. 2 PM 76° Mostly Sunny 4%
    16. 3 PM 76° Mostly Sunny 4%
    17. 4 PM 76° Mostly Sunny 4%
    18. 5 PM 75° Sunny 2%
    19. 6 PM 74° Mostly Clear 2%
    20. 7 PM 72° Mostly Clear 2%
    21. 8 PM 70° Mostly Clear 2%
    22. 9 PM 69° Mostly Clear 2%
    23. 10 PM 69° Mostly Clear 2%
    24. 11 PM 68° Partly Cloudy
  4. Tue 7/14 Sunny 1% 79° · 69°
    1. 12 AM 68° Partly Cloudy
    2. 1 AM 68° Partly Cloudy
    3. 2 AM 69° Partly Cloudy
    4. 3 AM 69° Partly Cloudy
    5. 4 AM 69° Partly Cloudy
    6. 5 AM 69° Partly Cloudy
    7. 6 AM 69° Mostly Sunny
    8. 7 AM 69° Mostly Sunny
    9. 8 AM 69° Mostly Sunny
    10. 9 AM 71° Mostly Sunny
    11. 10 AM 73° Mostly Sunny
    12. 11 AM 75° Sunny 1%
    13. 12 PM 76° Sunny 1%
    14. 1 PM 77° Sunny 1%
    15. 2 PM 77° Sunny 1%
    16. 3 PM 78° Sunny 1%
    17. 4 PM 78° Sunny 1%
    18. 5 PM 77° Sunny 1%
    19. 6 PM 75° Clear 1%
    20. 7 PM 73° Clear 1%
    21. 8 PM 72° Clear 1%
    22. 9 PM 70° Clear 1%
    23. 10 PM 70° Clear 1%
    24. 11 PM 69° Mostly Clear 1%
  5. Wed 7/15 Sunny 1% 82° · 70°
    1. 12 AM 69° Mostly Clear 1%
    2. 1 AM 69° Mostly Clear 1%
    3. 2 AM 70° Mostly Clear 1%
    4. 3 AM 70° Mostly Clear 1%
    5. 4 AM 70° Mostly Clear 1%
    6. 5 AM 70° Partly Cloudy
    7. 6 AM 70° Mostly Sunny
    8. 7 AM 70° Mostly Sunny
    9. 8 AM 71° Mostly Sunny
    10. 9 AM 73° Mostly Sunny
    11. 10 AM 76° Mostly Sunny
    12. 11 AM 79° Sunny
    13. 12 PM 80° Sunny
    14. 1 PM 80° Sunny
    15. 2 PM 80° Sunny
    16. 3 PM 80° Sunny
    17. 4 PM 80° Sunny
    18. 5 PM 79° Sunny 1%
    19. 6 PM 78° Mostly Clear 1%
    20. 7 PM 75° Mostly Clear 1%
    21. 8 PM 73° Mostly Clear 1%
    22. 9 PM 72° Mostly Clear 1%
    23. 10 PM 71° Mostly Clear 1%
    24. 11 PM 71° Mostly Clear
  6. Thu 7/16 Mostly Sunny 10% 80° · 69°
    1. 12 AM 70° Mostly Clear
    2. 1 AM 71° Mostly Clear
    3. 2 AM 71° Mostly Clear
    4. 3 AM 71° Mostly Clear
    5. 4 AM 71° Mostly Clear
    6. 5 AM 71° Partly Cloudy
    7. 6 AM 71° Mostly Sunny
    8. 7 AM 71° Mostly Sunny
    9. 8 AM 72° Mostly Sunny
    10. 9 AM 73° Mostly Sunny
    11. 10 AM 76° Mostly Sunny
    12. 11 AM 78° Sunny 1%
    13. 12 PM 79° Sunny 1%
    14. 1 PM 79° Sunny 1%
    15. 2 PM 79° Sunny 1%
    16. 3 PM 79° Sunny 1%
    17. 4 PM 78° Sunny 1%
    18. 5 PM 78° Sunny 4%
    19. 6 PM 76° Mostly Clear 4%
    20. 7 PM 74° Mostly Clear 4%
    21. 8 PM 72° Mostly Clear 4%
    22. 9 PM 70° Mostly Clear 4%
    23. 10 PM 69° Mostly Clear 4%
    24. 11 PM 69° Partly Cloudy 7%
  7. Fri 7/17 Mostly Sunny 10% 78° · —
    1. 12 AM 69° Partly Cloudy 7%
    2. 1 AM 69° Partly Cloudy 7%
    3. 2 AM 70° Partly Cloudy 7%
    4. 3 AM 70° Partly Cloudy 7%
    5. 4 AM 70° Partly Cloudy 7%
    6. 5 AM 71° Mostly Cloudy 10%
    7. 6 AM 70° Partly Sunny 10%
    8. 7 AM 70° Partly Sunny 10%
    9. 8 AM 71° Partly Sunny 10%
    10. 9 AM 72° Partly Sunny 10%
    11. 10 AM 74° Partly Sunny 10%
    12. 11 AM 76° Mostly Sunny 8%
    13. 12 PM 77° Mostly Sunny 8%
    14. 1 PM 77° Mostly Sunny 8%
    15. 2 PM 77° Mostly Sunny 8%
Extended outlook days 8–16
  1. Sat 7/18 Sunny 10% 82° · 70°
  2. Sun 7/19 Sunny 5% 85° · 70°
  3. Mon 7/20 Partly Cloudy 7% 80° · 71°
  4. Tue 7/21 Cloudy 1% 82° · 70°
  5. Wed 7/22 Partly Cloudy 3% 86° · 70°
  6. Thu 7/23 Sunny 13% 85° · 73°
  7. Fri 7/24 Cloudy 14% 88° · 72°
  8. Sat 7/25 Cloudy 13% 84° · 71°
  9. Sun 7/26 Cloudy 3% — · —

Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.

Best day this week

Mild temps, low rain chance, clearer skies.

Sunday, 7/12

Mostly Sunny, 77° / 67°

  1. Tomorrow77°67°
  2. Mon77°68°
  3. Tue79°69°
  4. Wed82°70°
  5. Thu80°69°
  6. Fri78°

Best time to head outside

Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.

  • Run6 AM

    comfortable at 63°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Bike6 AM

    comfortable at 63°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Golf6 AM

    comfortable at 63°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Picnic10 AM

    comfortable at 69°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Magic ShowAnytime

    Any weather is magic show weather. Indoors or out, magic doesn't care.

    Corporate Magician Scott Henderson

More for Costa Mesa

Other cities in California

Detailed forecast (NWS)

Saturday
Partly sunny, with a high near 75. South wind 0 to 10 mph.
Sunday
Mostly sunny, with a high near 77. South wind 0 to 10 mph.
Monday
Mostly sunny, with a high near 77.
Tuesday
Sunny, with a high near 79.

Forecast details

NWS gridpoint
SGX 36,59
Radar station
KSOX
Time zone
America/Los_Angeles
Coordinates
33.641, -117.919