FULLERTON, CA 92837 Weather Forecast & Current Conditions

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FULLERTON, CA
Current Weather

5:53 AM PDT OCT 16, 2026
Clear
81°F
Feels Like: 79°F
Dewpoint: 39°F
Rel. Hum.: 22%
Visibility: 10 miles
Wind: ENE at 9 mph
Pressure: 29.96 inches
Last 72 hours

Local Area Snow Depth

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FULLERTON, CA 92837
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Highs 96 to 99 towards the coast to 92 to 96 farther inland. Areas of winds east 20 to 30 mph with gusts to 45 mph.
TONIGHT
Mostly clear. Lows 69 to 73. Areas of winds east 15 to 25 mph with gusts to 40 mph.
SATURDAY
Mostly sunny. Highs 89 to 94. Areas of winds east 15 to 25 mph with gusts to 40 mph...becoming 10 to 15 mph with gusts to 30 mph in the afternoon.
SATURDAY NIGHT
Mostly clear. Lows 63 to 67. Areas of winds east 10 to 15 mph.
SUNDAY
Mostly sunny. Highs 85 to 88. Areas of winds east to 10 mph becoming west in the afternoon.
SUNDAY NIGHT
Mostly clear. Lows 62 to 66.
MONDAY
Mostly sunny. Highs 80 to 83.
MONDAY NIGHT
Mostly clear. Lows 57 to 62.
TUESDAY
Partly cloudy with a slight chance of showers. Highs 71 to 74.
TUESDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly cloudy with showers likely overnight. Lows 53 to 58.
WEDNESDAY
Showers likely. Highs around 70.
WEDNESDAY NIGHT
Partly cloudy with a chance of showers. Lows 52 to 57.
THURSDAY
Partly cloudy. A chance of showers. Highs around 70.

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 PM EDT 10/15/2026
Friday
16 OCT 2026
FULLERTON, CA 92837 weather forecast Day 1, 0 hours 11 PM 76° 77° Clear 0%

0% Thunder
( 0% severe)
NNW   9 28% 41°
Low 72° FULLERTON, CA 92837 weather forecast Day 1, 3 hours 2 AM 74° 74° Clear NNE   9 32% 42°
High 97° FULLERTON, CA 92837 weather forecast Day 1, 6 hours 5 AM 73° 73° Clear 2%

0% Thunder
( 0% severe)
NNE   9 34% 43°

Clear



FULLERTON, CA 92837 weather forecast Day 1, 9 hours 8 AM 74° 74° Clear NNE   10 33% 43°
FULLERTON, CA 92837 weather forecast Day 1, 12 hours 11 AM 89° 85° Clear 2%

0% Thunder
( 0% severe)
ENE   12 20% 43°
FULLERTON, CA 92837 weather forecast Day 1, 15 hours 2 PM 95° 91° Clear E   13 17% 44°
FULLERTON, CA 92837 weather forecast Day 1, 18 hours 5 PM 93° 89° Clear 2%

0% Thunder
( 0% severe)
E   12 18% 43°
FULLERTON, CA 92837 weather forecast Day 1, 21 hours 8 PM 84° 82° Clear ENE   9 24% 43°
Saturday
17 OCT 2026
FULLERTON, CA 92837 weather forecast Day 2, 0 hours 11 PM 80° 79° Partly Cloudy 1%

0% Thunder
( 1% severe)
NNE   12 28% 44°
Low 73° FULLERTON, CA 92837 weather forecast Day 2, 3 hours 2 AM 76° 77° Partly Cloudy N   9 32% 44°
High 93° FULLERTON, CA 92837 weather forecast Day 2, 6 hours 5 AM 75° 75° Partly Cloudy 0%

0% Thunder
( 0% severe)
NE   8 31% 42°

Partly Cloudy



FULLERTON, CA 92837 weather forecast Day 2, 9 hours 8 AM 75° 75° Partly Cloudy ENE   9 29% 41°
FULLERTON, CA 92837 weather forecast Day 2, 12 hours 11 AM 87° 84° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   7 18% 39°
FULLERTON, CA 92837 weather forecast Day 2, 15 hours 2 PM 91° 87° Partly Cloudy   CALM 16% 39°
FULLERTON, CA 92837 weather forecast Day 2, 18 hours 5 PM 88° 84° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   7 19% 41°
FULLERTON, CA 92837 weather forecast Day 2, 21 hours 8 PM 78° 78° Partly Cloudy   CALM 30% 44°

FULLERTON, CA extended weather forecast

Sunday
18 OCT 2026
Monday
19 OCT 2026
Tuesday
20 OCT 2026
Wednesday
21 OCT 2026
Thursday
22 OCT 2026
Low 63° Low 60° Low 61° Low 60° Low 60°
High 85° High 79° High 75° High 77° High 74°
FULLERTON, CA 92837 weather forecast Day 3 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
Partly Cloudy
2% Rain
Partly Cloudy
3% Rain
Overcast
12% Rain
Overcast
49% Rain
Overcast
60% Rain
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