FULLERTON, CA 92837 Weather Forecast & Current Conditions

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FULLERTON, CA
Current Weather

11:53 PM PDT APR 8, 2026
Clear
63°F
Feels Like: 63°F
Dewpoint: 57°F
Rel. Hum.: 81%
Visibility: 10 miles
Wind: S at 5 mph
Pressure: 29.92 inches
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FULLERTON, CA 92837
Weather Forecast

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Snow Depth pages
TONIGHT
Mostly clear this evening...becoming partly cloudy. Patchy fog overnight. Lows 54 to 58. Areas of winds south 10 mph this evening becoming light.
THURSDAY
Mostly cloudy with patchy fog in the morning... Becoming partly cloudy. Highs around 76 towards the coast to 80 farther inland. Light winds becoming southwest 10 to 15 mph with gusts to 25 mph in the afternoon.
THURSDAY NIGHT
Partly cloudy. Lows 53 to 58. Areas of winds southwest 10 mph in the evening becoming light.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs around 74. Areas of winds south to 10 mph becoming southwest in the afternoon.
FRIDAY NIGHT
Mostly clear in the evening, then mostly cloudy with a chance of showers overnight. Lows 53 to 57. Areas of winds southwest 10 mph in the evening becoming light. Chance of measurable precipitation 50 percent.
SATURDAY
Partly cloudy with a chance of showers and a slight chance of thunderstorms. Highs around 70.
SATURDAY NIGHT
Partly cloudy. A slight chance of showers in the evening, then a chance of showers overnight. Lows 51 to 54.
SUNDAY
Mostly cloudy with showers likely in the morning, then partly cloudy with a chance of showers in the afternoon. Highs 63 to 67.
SUNDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 46 to 50.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 66 to 70.
MONDAY NIGHT
Mostly clear. Lows around 50.
TUESDAY
Mostly sunny. Highs 72 to 76.
TUESDAY NIGHT
Partly cloudy. Lows 51 to 54.

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  4/ 8/2026
Thursday
9 APR 2026
FULLERTON, CA 92837 weather forecast Day 1, 0 hours 11 PM 63° 64° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSE   2 81% 57°
Low 58° FULLERTON, CA 92837 weather forecast Day 1, 3 hours 2 AM 60° 61° Mostly Cloudy ESE   1 93% 58°
High 77° FULLERTON, CA 92837 weather forecast Day 1, 6 hours 5 AM 59° 60° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 93% 57°

Mostly Cloudy



FULLERTON, CA 92837 weather forecast Day 1, 9 hours 8 AM 61° 62° Mostly Cloudy   CALM 87% 57°
FULLERTON, CA 92837 weather forecast Day 1, 12 hours 11 AM 71° 71° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SSW   5 61% 57°
FULLERTON, CA 92837 weather forecast Day 1, 15 hours 2 PM 76° 78° Partly Cloudy SW   8 50% 56°
FULLERTON, CA 92837 weather forecast Day 1, 18 hours 5 PM 74° 74° Mostly Cloudy 1%

0% Thunder
( 1% severe)
WSW   9 51% 55°
FULLERTON, CA 92837 weather forecast Day 1, 21 hours 8 PM 67° 67° Partly Cloudy WSW   7 63% 54°
Friday
10 APR 2026
FULLERTON, CA 92837 weather forecast Day 2, 0 hours 11 PM 63° 64° Partly Cloudy 2%

0% Thunder
( 0% severe)
SW   2 81% 57°
Low 58° FULLERTON, CA 92837 weather forecast Day 2, 3 hours 2 AM 61° 62° Partly Cloudy SSW   1 90% 58°
High 74° FULLERTON, CA 92837 weather forecast Day 2, 6 hours 5 AM 59° 60° Mostly Cloudy 2%

0% Thunder
( 0% severe)
  CALM 93% 57°

Mostly Cloudy



FULLERTON, CA 92837 weather forecast Day 2, 9 hours 8 AM 60° 61° Mostly Cloudy   CALM 90% 57°
FULLERTON, CA 92837 weather forecast Day 2, 12 hours 11 AM 68° 68° Partly Cloudy 4%

0% Thunder
( 4% severe)
SSW   5 65% 56°
FULLERTON, CA 92837 weather forecast Day 2, 15 hours 2 PM 73° 73° Partly Cloudy SW   8 51% 54°
FULLERTON, CA 92837 weather forecast Day 2, 18 hours 5 PM 71° 71° Partly Cloudy 12%
RAIN
<.01 in
0% Thunder
( 6% severe)
SW   9 55% 54°
FULLERTON, CA 92837 weather forecast Day 2, 21 hours 8 PM 65° 65° Partly Cloudy WSW   7 65% 53°

FULLERTON, CA extended weather forecast

Saturday
11 APR 2026
Sunday
12 APR 2026
Monday
13 APR 2026
Tuesday
14 APR 2026
Wednesday
15 APR 2026
Low 59° Low 59° Low 53° Low 53° Low 56°
High 70° High 67° High 70° High 72° High 72°
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
Overcast
38% Rain
Overcast
76% Rain
Mostly Cloudy
42% Rain
Partly Cloudy
12% Rain
Partly Cloudy
13% Rain
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