FULLERTON, CA 92837 Weather Forecast & Current Conditions

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FULLERTON, CA
Current Weather

2:53 AM PDT OCT 2, 2026
Clear
66°F
Feels Like: 66°F
Dewpoint: 63°F
Rel. Hum.: 90%
Visibility: 10 miles
Wind: Calm
Pressure: 29.83 inches
Last 72 hours

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FULLERTON, CA 92837
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Hot. Highs 94 to 98 towards the coast to 100 farther inland. Light winds becoming west 10 mph this afternoon.
TONIGHT
Mostly clear. Lows 74 to 77. Light winds becoming northeast to 10 mph overnight.
SATURDAY
Sunny, hot. Highs 100 to 103. Areas of winds east 10 to 20 mph. Gusts to 35 mph...becoming 30 mph in the afternoon.
SATURDAY NIGHT
Clear. Lows 74 to 79. Areas of winds west to 10 mph becoming northeast with gusts to 25 mph overnight.
SUNDAY
Mostly sunny. Hot. Highs around 100. Areas of winds east to 10 mph becoming southwest in the afternoon.
SUNDAY NIGHT
Clear. Lows 73 to 77.
MONDAY
Mostly sunny. Hot. Highs 95 to 98 towards the coast to 99 farther inland.
MONDAY NIGHT
Clear. Lows 73 to 77.
TUESDAY
Mostly sunny. Hot. Highs 95 to 100.
TUESDAY NIGHT
Clear. Lows 72 to 76.
WEDNESDAY
Mostly sunny. Hot. Highs 94 to 97 towards the coast to 99 farther inland.
WEDNESDAY NIGHT
Clear. Lows 71 to 75.
THURSDAY
Mostly sunny. Hot. Highs 93 to 96 towards the coast to 100 farther inland.

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  9/30/2026
Wednesday
30 SEP 2026
FULLERTON, CA 92837 weather forecast Day 1, 12 hours 11 AM 78° 80° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   3 56% 61°
High 85° FULLERTON, CA 92837 weather forecast Day 1, 15 hours 2 PM 84° 85° Clear SW   6 48% 62°
Clear



FULLERTON, CA 92837 weather forecast Day 1, 18 hours 5 PM 81° 82° Clear 0%

0% Thunder
( 0% severe)
SSW   6 53% 62°
FULLERTON, CA 92837 weather forecast Day 1, 21 hours 8 PM 73° 73° Clear   CALM 73% 64°
Thursday
1 OCT 2026
FULLERTON, CA 92837 weather forecast Day 2, 0 hours 11 PM 71° 71° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSE   2 79% 64°
Low 67° FULLERTON, CA 92837 weather forecast Day 2, 3 hours 2 AM 69° 69° Partly Cloudy   CALM 84% 64°
High 90° FULLERTON, CA 92837 weather forecast Day 2, 6 hours 5 AM 68° 68° Mostly Cloudy 0%

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 81% 63°
FULLERTON, CA 92837 weather forecast Day 2, 12 hours 11 AM 80° 81° Clear 0%

0% Thunder
( 0% severe)
  CALM 52% 61°
FULLERTON, CA 92837 weather forecast Day 2, 15 hours 2 PM 88° 88° Clear SW   5 40% 61°
FULLERTON, CA 92837 weather forecast Day 2, 18 hours 5 PM 87° 87° Clear 0%

0% Thunder
( 0% severe)
W   7 40% 60°
FULLERTON, CA 92837 weather forecast Day 2, 21 hours 8 PM 77° 79° Clear   CALM 58% 61°
Friday
2 OCT 2026
FULLERTON, CA 92837 weather forecast Day 3, 0 hours 11 PM 73° 73° Clear 0%

0% Thunder
( 0% severe)
  CALM 71% 63°
Low 69° FULLERTON, CA 92837 weather forecast Day 3, 3 hours 2 AM 71° 71° Clear   CALM 73% 62°
High 98° FULLERTON, CA 92837 weather forecast Day 3, 6 hours 5 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
  CALM 73% 61°

Clear



FULLERTON, CA 92837 weather forecast Day 3, 9 hours 8 AM 72° 72° Partly Cloudy   CALM 64% 59°
FULLERTON, CA 92837 weather forecast Day 3, 15 hours 11 AM 86° 85° Clear 0%

0% Thunder
( 0% severe)
  CALM 39% 58°
FULLERTON, CA 92837 weather forecast Day 3, 18 hours 2 PM 95° 94° Clear WSW   3 28% 57°
FULLERTON, CA 92837 weather forecast Day 3, 21 hours 5 PM 94° 92° Clear     W   7 27% 55°

FULLERTON, 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 67° Low 69° Low 69° Low 67° Low 69°
High 101° High 98° High 97° High 97° High 96°
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
Clear
2% Rain
Clear
2% Rain
Clear
2% Rain
Clear
4% Rain
Clear
4% Rain
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