FULLERTON, CA 92837 Weather Forecast & Current Conditions

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FULLERTON, CA
Current Weather

10:53 PM PST JAN 7, 2026
Clear
52°F
Feels Like: 52°F
Dewpoint: 50°F
Rel. Hum.: 93%
Visibility: 10 miles
Wind: ENE at 3 mph
Pressure: 29.98 inches
Last 72 hours

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FULLERTON, CA 92837
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Highs 61 to 64. Areas of winds northwest 10 to 15 mph with gusts to 30 mph.
TONIGHT
Clear. Areas of blowing dust overnight. Lows 42 to 46. Areas of winds northeast 20 to 30 mph. Gusts to 45 mph...becoming 50 mph overnight.
FRIDAY
Areas of blowing dust in the morning. Mostly sunny. Highs around 65 towards the coast to 62 to 65 farther inland. Areas of winds northeast 25 to 35 mph. Gusts to 55 mph...becoming 50 mph in the afternoon.
FRIDAY NIGHT
Mostly clear. Lows around 45. Areas of winds northeast 20 to 30 mph with gusts to 50 mph.
SATURDAY
Mostly sunny. Highs 69 to 72. Areas of winds east 20 to 30 mph. Gusts to 45 mph...becoming 40 mph in the afternoon.
SATURDAY NIGHT
Clear, windy. Lows around 49.
SUNDAY
Mostly sunny. Highs 71 to 74.
SUNDAY NIGHT
Mostly clear. Lows around 50.
MONDAY
Mostly sunny. Highs around 74.
MONDAY NIGHT
Mostly clear. Lows around 51.
TUESDAY
Mostly sunny. Highs 74 to 77.
TUESDAY NIGHT
Mostly clear. Lows around 53.
WEDNESDAY
Mostly sunny. Highs around 78.

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  7:00 PM EST  1/ 7/2026
Thursday
8 JAN 2026
FULLERTON, CA 92837 weather forecast Day 1, 0 hours 10 PM 54° 54° Partly Cloudy 0%

0% Thunder
( 0% severe)
SE   2 86% 50°
Low 46° FULLERTON, CA 92837 weather forecast Day 1, 3 hours 1 AM 51° 51° Partly Cloudy NE   2 93% 49°
High 63° FULLERTON, CA 92837 weather forecast Day 1, 6 hours 4 AM 49° 49° Partly Cloudy 1%

0% Thunder
( 1% severe)
NE   1 93% 47°

Partly Cloudy



FULLERTON, CA 92837 weather forecast Day 1, 9 hours 7 AM 47° 46° Partly Cloudy NW   3 93% 45°
FULLERTON, CA 92837 weather forecast Day 1, 12 hours 10 AM 57° 55° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   8 55% 41°
FULLERTON, CA 92837 weather forecast Day 1, 15 hours 1 PM 62° 61° Clear NW   9 38% 36°
FULLERTON, CA 92837 weather forecast Day 1, 18 hours 4 PM 61° 60° Clear 0%

0% Thunder
( 0% severe)
NNW   7 38% 35°
FULLERTON, CA 92837 weather forecast Day 1, 21 hours 7 PM 53° 51° Clear NW   7 52% 36°
Friday
9 JAN 2026
FULLERTON, CA 92837 weather forecast Day 2, 0 hours 10 PM 49° 47° Clear 0%

0% Thunder
( 0% severe)
ENE   6 58% 35°
Low 42° FULLERTON, CA 92837 weather forecast Day 2, 3 hours 1 AM 46° 43° Clear ENE   6 56% 31°
High 65° FULLERTON, CA 92837 weather forecast Day 2, 6 hours 4 AM 45° 42° Clear 0%

0% Thunder
( 0% severe)
NE   6 51% 28°

Clear



FULLERTON, CA 92837 weather forecast Day 2, 9 hours 7 AM 44° 40° Clear NE   7 48% 26°
FULLERTON, CA 92837 weather forecast Day 2, 12 hours 10 AM 56° 55° Partly Cloudy 0%

0% Thunder
( 0% severe)
NE   6 34% 28°
FULLERTON, CA 92837 weather forecast Day 2, 15 hours 1 PM 62° 63° Clear N   3 24% 25°
FULLERTON, CA 92837 weather forecast Day 2, 18 hours 4 PM 62° 63° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   3 28% 29°
FULLERTON, CA 92837 weather forecast Day 2, 21 hours 7 PM 53° 51° Clear NNE   6 45% 32°

FULLERTON, CA extended weather forecast

Saturday
10 JAN 2026
Sunday
11 JAN 2026
Monday
12 JAN 2026
Tuesday
13 JAN 2026
Wednesday
14 JAN 2026
Low 41° Low 44° Low 48° Low 48° Low 49°
High 74° High 78° High 77° High 79° High 79°
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
Clear
1% Rain
Clear
1% Rain
Clear
2% Rain
Clear
Clear
3% Rain
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