FULLERTON, CA 92837 Weather Forecast & Current Conditions

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FULLERTON, CA
Current Weather

8:53 AM PDT MAY 28, 2026
Overcast
63°F
Feels Like: 63°F
Dewpoint: 48°F
Rel. Hum.: 58%
Visibility: 10 miles
Wind: Calm
Pressure: 29.95 inches
Last 72 hours

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FULLERTON, CA 92837
Weather Forecast

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Snow Depth pages
TODAY
Partly cloudy. Highs 66 to 69. Areas of winds south to 10 mph becoming southwest with gusts to 25 mph this afternoon.
TONIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of light showers overnight. Lows 52 to 59. Areas of winds west 10 to 15 mph in the evening becoming light. Chance of measurable precipitation 30 percent.
FRIDAY
Mostly cloudy in the morning...becoming mostly sunny. Highs 69 to 73. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon.
FRIDAY NIGHT
Clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 51 to 59. Areas of winds west 10 to 15 mph in the evening becoming light.
SATURDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 75 to 78. Areas of winds southwest to 10 mph.
SATURDAY NIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 55 to 60.
SUNDAY
Partly cloudy with patchy fog in the morning...becoming mostly sunny. Highs 79 to 84.
SUNDAY NIGHT
Mostly clear. Lows 57 to 62.
MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 76 to 79 towards the coast to 79 to 83 farther inland.
MONDAY NIGHT
Mostly clear. Lows 56 to 62.
TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs around 77 towards the coast to 78 to 82 farther inland.
TUESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 56 to 62.
WEDNESDAY
Partly cloudy. Highs around 78 towards the coast to 79 to 84 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 PM EDT  5/27/2026
Thursday
28 MAY 2026
FULLERTON, CA 92837 weather forecast Day 1, 0 hours 11 PM 60° 60° Partly Cloudy 4%

0% Thunder
( 2% severe)
WSW   6 67% 49°
Low 55° FULLERTON, CA 92837 weather forecast Day 1, 3 hours 2 AM 58° 59° Partly Cloudy   CALM 80% 52°
High 70° FULLERTON, CA 92837 weather forecast Day 1, 6 hours 5 AM 56° 56° Partly Cloudy 1%

0% Thunder
( 2% severe)
  CALM 83% 51°

Partly Cloudy



FULLERTON, CA 92837 weather forecast Day 1, 9 hours 8 AM 60° 61° Partly Cloudy   CALM 72% 51°
FULLERTON, CA 92837 weather forecast Day 1, 12 hours 11 AM 64° 64° Mostly Cloudy 2%

0% Thunder
( 0% severe)
SSW   6 58% 49°
FULLERTON, CA 92837 weather forecast Day 1, 15 hours 2 PM 68° 68° Partly Cloudy SW   9 51% 49°
FULLERTON, CA 92837 weather forecast Day 1, 18 hours 5 PM 68° 68° Partly Cloudy 7%

0% Thunder
( 3% severe)
SW   10 49% 48°
FULLERTON, CA 92837 weather forecast Day 1, 21 hours 8 PM 63° 62° Partly Cloudy W   9 56% 47°
Friday
29 MAY 2026
FULLERTON, CA 92837 weather forecast Day 2, 0 hours 11 PM 61° 61° Partly Cloudy 15%
RAIN
<.01 in
0% Thunder
( 4% severe)
WSW   6 67% 50°
Low 56° FULLERTON, CA 92837 weather forecast Day 2, 3 hours 2 AM 59° 60° Mostly Cloudy   CALM 80% 53°
High 72° FULLERTON, CA 92837 weather forecast Day 2, 6 hours 5 AM 57° 58° Mostly Cloudy 1%

0% Thunder
( 1% severe)
  CALM 86% 53°

Partly Cloudy



FULLERTON, CA 92837 weather forecast Day 2, 9 hours 8 AM 61° 62° Partly Cloudy   CALM 72% 52°
FULLERTON, CA 92837 weather forecast Day 2, 12 hours 11 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   6 58% 51°
FULLERTON, CA 92837 weather forecast Day 2, 15 hours 2 PM 71° 71° Partly Cloudy SW   9 51% 52°
FULLERTON, CA 92837 weather forecast Day 2, 18 hours 5 PM 70° 70° Clear 0%

0% Thunder
( 0% severe)
WSW   10 53% 52°
FULLERTON, CA 92837 weather forecast Day 2, 21 hours 8 PM 65° 65° Clear WSW   8 63% 52°

FULLERTON, CA extended weather forecast

Saturday
30 MAY 2026
Sunday
31 MAY 2026
Monday
1 JUN 2026
Tuesday
2 JUN 2026
Wednesday
3 JUN 2026
Low 60° Low 61° Low 61° Low 61° Low 62°
High 76° High 83° High 77° High 79° High 80°
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
3% Rain
Partly Cloudy
2% Rain
Partly Cloudy
1% Rain
Mostly Cloudy
1% Rain
Mostly Cloudy
2% Rain
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