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Fullerton, California weather · now

65°

Mostly Cloudy

High / Low
83° / 63°
Wind
11 mph WNW
Humidity
86%
No precipitation expected in the next 1.7 hours.
ModerateAir quality PollenTreeNoneGrassHighWeedLow
Sun 5:49 AM 8:04 PM 14h 15m
Moon Waning Crescent 12% lit

Current weather and 7-day forecast for Fullerton, California, sourced directly from the National Weather Service. Expect partly sunny today. Today's high is 83° with a low near 63°.

What to wear today

T-shirt and shorts weather

83°F today — easy summer dressing.

Next 24 hours

60° 75° 90° ↑ 82° ↓ 64° 5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM 2 AM

  1. 5 AM

    64°

    0%

  2. 7 AM

    65°

    0%

  3. 9 AM

    69°

    0%

  4. 11 AM

    75°

    0%

  5. 1 PM

    80°

    0%

  6. 3 PM

    82°

    0%

  7. 5 PM

    80°

    3%

  8. 7 PM

    76°

    3%

  9. 9 PM

    71°

    3%

  10. 11 PM

    69°

    2%

  11. 1 AM

    68°

    2%

  12. 3 AM

    67°

    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 3% 83° · 63°
    1. 5 AM 64° Mostly Cloudy
    2. 6 AM 64° Partly Sunny
    3. 7 AM 65° Partly Sunny
    4. 8 AM 66° Mostly Cloudy
    5. 9 AM 69° Mostly Cloudy
    6. 10 AM 72° Mostly Cloudy
    7. 11 AM 75° Mostly Sunny
    8. 12 PM 79° Mostly Sunny
    9. 1 PM 80° Mostly Sunny
    10. 2 PM 81° Mostly Sunny
    11. 3 PM 82° Mostly Sunny
    12. 4 PM 81° Mostly Sunny
    13. 5 PM 80° Mostly Sunny 3%
    14. 6 PM 79° Partly Cloudy 3%
    15. 7 PM 76° Partly Cloudy 3%
    16. 8 PM 73° Partly Cloudy 3%
    17. 9 PM 71° Partly Cloudy 3%
    18. 10 PM 70° Partly Cloudy 3%
    19. 11 PM 69° Partly Cloudy 2%
  2. Sun 7/12 Mostly Sunny 4% 86° · 68°
    1. 12 AM 68° Partly Cloudy 2%
    2. 1 AM 68° Partly Cloudy 2%
    3. 2 AM 67° Mostly Cloudy 2%
    4. 3 AM 67° Mostly Cloudy 2%
    5. 4 AM 67° Mostly Cloudy 2%
    6. 5 AM 67° Partly Cloudy 2%
    7. 6 AM 67° Mostly Sunny 2%
    8. 7 AM 67° Mostly Sunny 2%
    9. 8 AM 68° Partly Sunny 2%
    10. 9 AM 71° Partly Sunny 2%
    11. 10 AM 74° Partly Sunny 2%
    12. 11 AM 77° Partly Sunny 4%
    13. 12 PM 81° Partly Sunny 4%
    14. 1 PM 83° Partly Sunny 4%
    15. 2 PM 83° Sunny 4%
    16. 3 PM 85° Sunny 4%
    17. 4 PM 84° Sunny 4%
    18. 5 PM 83° Sunny 2%
    19. 6 PM 82° Mostly Clear 2%
    20. 7 PM 79° Mostly Clear 2%
    21. 8 PM 76° Mostly Clear 2%
    22. 9 PM 73° Mostly Clear 2%
    23. 10 PM 72° Mostly Clear 2%
    24. 11 PM 70° Partly Cloudy 1%
  3. Mon 7/13 Mostly Sunny 4% 88° · 69°
    1. 12 AM 70° Partly Cloudy 1%
    2. 1 AM 69° Partly Cloudy 1%
    3. 2 AM 69° Partly Cloudy 1%
    4. 3 AM 69° Partly Cloudy 1%
    5. 4 AM 69° Partly Cloudy 1%
    6. 5 AM 69° Mostly Cloudy 4%
    7. 6 AM 69° Partly Sunny 4%
    8. 7 AM 68° Partly Sunny 4%
    9. 8 AM 70° Partly Sunny 4%
    10. 9 AM 72° Partly Sunny 4%
    11. 10 AM 76° Partly Sunny 4%
    12. 11 AM 79° Mostly Sunny 4%
    13. 12 PM 82° Mostly Sunny 4%
    14. 1 PM 84° Mostly Sunny 4%
    15. 2 PM 86° Mostly Sunny 4%
    16. 3 PM 86° Mostly Sunny 4%
    17. 4 PM 87° Mostly Sunny 4%
    18. 5 PM 86° Sunny 2%
    19. 6 PM 84° Mostly Clear 2%
    20. 7 PM 81° Mostly Clear 2%
    21. 8 PM 78° Mostly Clear 2%
    22. 9 PM 75° Mostly Clear 2%
    23. 10 PM 73° Mostly Clear 2%
    24. 11 PM 72° Partly Cloudy
  4. Tue 7/14 Sunny 1% 91° · 71°
    1. 12 AM 71° Partly Cloudy
    2. 1 AM 70° Partly Cloudy
    3. 2 AM 70° Partly Cloudy
    4. 3 AM 70° Partly Cloudy
    5. 4 AM 70° Partly Cloudy
    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 74° Mostly Sunny
    11. 10 AM 78° Mostly Sunny
    12. 11 AM 82° Sunny 1%
    13. 12 PM 85° Sunny 1%
    14. 1 PM 87° Sunny 1%
    15. 2 PM 88° Sunny 1%
    16. 3 PM 90° Sunny 1%
    17. 4 PM 90° Sunny 1%
    18. 5 PM 89° Sunny 1%
    19. 6 PM 86° Clear 1%
    20. 7 PM 84° Clear 1%
    21. 8 PM 81° Clear 1%
    22. 9 PM 78° Clear 1%
    23. 10 PM 75° Clear 1%
    24. 11 PM 73° Mostly Clear 1%
  5. Wed 7/15 Sunny 0% 95° · 72°
    1. 12 AM 72° Mostly Clear 1%
    2. 1 AM 72° Mostly Clear 1%
    3. 2 AM 72° Mostly Clear 1%
    4. 3 AM 72° Mostly Clear 1%
    5. 4 AM 72° Mostly Clear 1%
    6. 5 AM 72° Partly Cloudy
    7. 6 AM 72° Mostly Sunny
    8. 7 AM 72° Mostly Sunny
    9. 8 AM 73° Mostly Sunny
    10. 9 AM 78° Mostly Sunny
    11. 10 AM 83° Mostly Sunny
    12. 11 AM 88° Sunny
    13. 12 PM 90° Sunny
    14. 1 PM 92° Sunny
    15. 2 PM 93° Sunny
    16. 3 PM 94° Sunny
    17. 4 PM 94° Sunny
    18. 5 PM 93° Sunny
    19. 6 PM 90° Clear
    20. 7 PM 87° Clear
    21. 8 PM 83° Clear
    22. 9 PM 80° Clear
    23. 10 PM 77° Clear
    24. 11 PM 75° Mostly Clear
  6. Thu 7/16 Sunny 14% 91° · 70°
    1. 12 AM 74° Mostly Clear
    2. 1 AM 74° Mostly Clear
    3. 2 AM 74° Mostly Clear
    4. 3 AM 74° Mostly Clear
    5. 4 AM 74° Mostly Clear
    6. 5 AM 74° Partly Cloudy
    7. 6 AM 73° Mostly Sunny
    8. 7 AM 73° Mostly Sunny
    9. 8 AM 74° Mostly Sunny
    10. 9 AM 78° Mostly Sunny
    11. 10 AM 82° Mostly Sunny
    12. 11 AM 86° Sunny 1%
    13. 12 PM 88° Sunny 1%
    14. 1 PM 89° Sunny 1%
    15. 2 PM 89° Sunny 1%
    16. 3 PM 90° Sunny 1%
    17. 4 PM 90° Sunny 1%
    18. 5 PM 88° Sunny 4%
    19. 6 PM 86° Mostly Clear 4%
    20. 7 PM 82° Mostly Clear 4%
    21. 8 PM 79° Mostly Clear 4%
    22. 9 PM 76° Mostly Clear 4%
    23. 10 PM 74° Mostly Clear 4%
    24. 11 PM 73° Mostly Clear 9%
  7. Fri 7/17 Mostly Sunny 14% 87° · —
    1. 12 AM 72° Mostly Clear 9%
    2. 1 AM 72° Mostly Clear 9%
    3. 2 AM 72° Mostly Clear 9%
    4. 3 AM 72° Mostly Clear 9%
    5. 4 AM 72° Mostly Clear 9%
    6. 5 AM 72° Partly Cloudy 14%
    7. 6 AM 72° Mostly Sunny 14%
    8. 7 AM 72° Mostly Sunny 14%
    9. 8 AM 72° Mostly Sunny 14%
    10. 9 AM 76° Mostly Sunny 14%
    11. 10 AM 80° Mostly Sunny 14%
    12. 11 AM 83° Mostly Sunny 12%
    13. 12 PM 85° Mostly Sunny 12%
    14. 1 PM 86° Mostly Sunny 12%
    15. 2 PM 87° Mostly Sunny 12%
    16. 3 PM 87° Mostly Sunny 12%
    17. 4 PM 87° Mostly Sunny 12%
Extended outlook days 8–16
  1. Sat 7/18 Partly Cloudy 11% 92° · 74°
  2. Sun 7/19 Sunny 6% 92° · 72°
  3. Mon 7/20 Sunny 8% 90° · 72°
  4. Tue 7/21 Sunny 2% 89° · 72°
  5. Wed 7/22 Sunny 6% 88° · 72°
  6. Thu 7/23 Cloudy 16% 88° · 73°
  7. Fri 7/24 Cloudy 16% 97° · 78°
  8. Sat 7/25 Cloudy 13% 93° · 80°
  9. Sun 7/26 Cloudy 6% 91° · 76°

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.

Tuesday, 7/14

Sunny, 91° / 71°

  1. Tomorrow86°68°
  2. Mon88°69°
  3. Tue91°71°
  4. Wed95°72°
  5. Thu91°70°
  6. Fri87°

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 64°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Bike6 AM

    comfortable at 64°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Golf6 AM

    comfortable at 64°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Picnic9 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

Climate normals

What weather to expect in Fullerton

Fullerton in July typically averages 83° highs and 62° lows, with about 1 day of rain. The hottest stretch is August (average high 88°); the coldest is January (average low 51°). March is the wettest month on average.

MonthAvg highAvg lowRainy days
Jan69°51°6
Feb71°52°6
Mar74°53°8
Apr73°54°7
May76°58°3
Jun79°60°1
Jul83°62°1
Aug88°64°0
Sep86°64°2
Oct80°58°3
Nov71°53°6
Dec68°51°3

Normals derived from the past two years of observations via Open-Meteo's historical archive.

More for Fullerton

Other cities in California

Detailed forecast (NWS)

Saturday
Partly sunny, with a high near 83. Southwest wind 0 to 10 mph.
Sunday
Mostly sunny, with a high near 86. Southwest wind 0 to 10 mph.
Monday
Mostly sunny, with a high near 88.
Tuesday
Sunny, with a high near 91.

Forecast details

NWS gridpoint
SGX 37,69
Radar station
KSOX
Time zone
America/Los_Angeles
Coordinates
33.870, -117.924