FULLERTON, CA 92837 Weather Forecast & Current Conditions

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FULLERTON, CA
Current Weather

5:53 PM PDT AUG 13, 2026
Clear
75°F
Feels Like: 75°F
Dewpoint: 63°F
Rel. Hum.: 66%
Visibility: 10 miles
Wind: Variable at 6 mph
Pressure: 29.90 inches
Last 72 hours

Local Area Snow Depth

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FULLERTON, CA 92837
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy. Patchy dense fog. Cooler. Lows 58 to 67. Areas of winds southwest 10 mph this evening becoming light.
FRIDAY
Mostly cloudy in the morning...becoming mostly sunny. Patchy dense fog in the morning. Highs around 79 towards the coast to 80 to 83 farther inland. Light winds becoming southwest 10 mph in the afternoon.
FRIDAY NIGHT
Partly cloudy. Patchy dense fog. Lows 57 to 65. Areas of winds southwest 10 mph in the evening becoming light.
SATURDAY
Mostly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 81 to 85. Light winds becoming southwest 10 mph in the afternoon.
SATURDAY NIGHT
Partly cloudy. Patchy fog overnight. Lows 58 to 66. Areas of winds southwest 10 mph in the evening becoming light.
SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 84 towards the coast to 86 farther inland.
SUNDAY NIGHT
Mostly clear. Lows 59 to 67.
MONDAY
Partly cloudy. Highs 81 to 84 towards the coast to 87 farther inland.
MONDAY NIGHT
Mostly clear. Lows 60 to 67.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 82 to 85 towards the coast to 90 farther inland.
TUESDAY NIGHT
Mostly clear. Lows 61 to 68.
WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 83 to 86 towards the coast to 89 farther inland.
WEDNESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 61 to 68.

Visible Weather Satellite
FULLERTON, CA 92837
Infrared Weather Satellite
FULLERTON, CA 92837
NEXRAD Weather Radar
FULLERTON, CA 92837

FULLERTON, CA 3 hourly weather forecast

weather forecast created  8:00 AM EDT  8/13/2026
Thursday
13 AUG 2026
FULLERTON, CA 92837 weather forecast Day 1, 12 hours 11 AM 75° 75° Mostly Cloudy 0%

0% Thunder
( 0% severe)
S   3 69% 64°
High 80° FULLERTON, CA 92837 weather forecast Day 1, 15 hours 2 PM 79° 81° Mostly Cloudy SSW   8 62% 65°
Mostly Cloudy



FULLERTON, CA 92837 weather forecast Day 1, 18 hours 5 PM 77° 79° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SSW   8 64% 64°
FULLERTON, CA 92837 weather forecast Day 1, 21 hours 8 PM 72° 72° Mostly Cloudy SSW   6 73% 63°
Friday
14 AUG 2026
FULLERTON, CA 92837 weather forecast Day 2, 0 hours 11 PM 70° 70° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SSW   5 78% 63°
Low 67° FULLERTON, CA 92837 weather forecast Day 2, 3 hours 2 AM 68° 68° Mostly Cloudy SW   3 84% 63°
High 81° FULLERTON, CA 92837 weather forecast Day 2, 6 hours 5 AM 68° 68° Mostly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 84% 63°

Decreasing Clouds



FULLERTON, CA 92837 weather forecast Day 2, 9 hours 8 AM 69° 69° Mostly Cloudy   CALM 84% 64°
FULLERTON, CA 92837 weather forecast Day 2, 12 hours 11 AM 75° 75° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   3 69% 64°
FULLERTON, CA 92837 weather forecast Day 2, 15 hours 2 PM 79° 81° Clear SW   8 58% 63°
FULLERTON, CA 92837 weather forecast Day 2, 18 hours 5 PM 79° 80° Clear 0%

0% Thunder
( 0% severe)
SW   8 56% 62°
FULLERTON, CA 92837 weather forecast Day 2, 21 hours 8 PM 73° 73° Clear WSW   7 66% 61°
Saturday
15 AUG 2026
FULLERTON, CA 92837 weather forecast Day 3, 0 hours 11 PM 69° 69° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   3 81% 63°
Low 66° FULLERTON, CA 92837 weather forecast Day 3, 3 hours 2 AM 68° 68° Partly Cloudy   CALM 84% 63°
High 84° FULLERTON, CA 92837 weather forecast Day 3, 6 hours 5 AM 67° 67° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 87% 63°

Decreasing Clouds



FULLERTON, CA 92837 weather forecast Day 3, 9 hours 8 AM 69° 69° Mostly Cloudy   CALM 84% 64°
FULLERTON, CA 92837 weather forecast Day 3, 15 hours 11 AM 76° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   5 64% 63°
FULLERTON, CA 92837 weather forecast Day 3, 18 hours 2 PM 81° 82° Clear SW   8 54% 63°
FULLERTON, CA 92837 weather forecast Day 3, 21 hours 5 PM 82° 83° Partly Cloudy     SW   8 51% 62°

FULLERTON, CA extended weather forecast

Sunday
16 AUG 2026
Monday
17 AUG 2026
Tuesday
18 AUG 2026
Wednesday
19 AUG 2026
Thursday
20 AUG 2026
Low 68° Low 67° Low 69° Low 70° Low 69°
High 90° High 92° High 90° High 86° High 87°
FULLERTON, CA 92837 weather forecast Day 4 FULLERTON, CA 92837 weather forecast Day 5 FULLERTON, CA 92837 weather forecast Day 6 FULLERTON, CA 92837 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
Clear
Clear
1% Rain
Partly Cloudy
3% Rain
Partly Cloudy
2% Rain
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