FULLERTON, CA 92837 Weather Forecast & Current Conditions

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FULLERTON, CA
Current Weather

5:53 AM PDT MAR 15, 2026
Overcast
59°F
Feels Like: 59°F
Dewpoint: 55°F
Rel. Hum.: 87%
Visibility: 7 miles
Wind: Calm
Pressure: 29.95 inches
Last 72 hours

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FULLERTON, CA 92837
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly cloudy with patchy fog this morning...becoming mostly sunny. Highs 79 to 82 towards the coast to 83 to 87 farther inland. Light winds becoming west 10 mph this afternoon.
TONIGHT
Mostly clear in the evening...becoming partly cloudy overnight with patchy fog. Lows 53 to 59. Light winds becoming west to 10 mph with gusts to 25 mph overnight.
MONDAY
Mostly sunny. Highs 86 to 90 towards the coast to 91 to 95 farther inland. Areas of winds west 15 to 25 mph with gusts to 40 mph.
MONDAY NIGHT
Mostly clear. Lows 56 to 64. Areas of winds west to 10 mph becoming east with gusts to 25 mph overnight.
TUESDAY
Mostly sunny. Highs 90 to 93 towards the coast to 94 to 97 farther inland. Areas of winds west 10 to 15 mph. Gusts to 30 mph in the morning.
TUESDAY NIGHT
Mostly clear. Lows 59 to 66.
WEDNESDAY
Mostly sunny. Highs 90 to 93 towards the coast to 95 to 98 farther inland.
WEDNESDAY NIGHT
Mostly clear. Lows 58 to 66.
THURSDAY
Mostly sunny. Highs 91 to 95 towards the coast to 96 to 100 farther inland.
THURSDAY NIGHT
Mostly clear. Lows 59 to 68.
FRIDAY
Mostly sunny. Highs 91 to 95 towards the coast to 100 farther inland.
FRIDAY NIGHT
Mostly clear. Lows 58 to 67.
SATURDAY
Mostly sunny. Highs 86 to 90 towards the coast to 91 to 94 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  7:00 PM EST  3/14/2026
Sunday
15 MAR 2026
FULLERTON, CA 92837 weather forecast Day 1, 0 hours 10 PM 61° 62° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   1 84% 56°
Low 56° FULLERTON, CA 92837 weather forecast Day 1, 3 hours 1 AM 58° 59° Partly Cloudy   CALM 90% 55°
High 84° FULLERTON, CA 92837 weather forecast Day 1, 6 hours 4 AM 57° 58° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 90% 54°

Decreasing Clouds



FULLERTON, CA 92837 weather forecast Day 1, 9 hours 7 AM 57° 58° Mostly Cloudy   CALM 86% 53°
FULLERTON, CA 92837 weather forecast Day 1, 12 hours 10 AM 70° 70° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   1 55% 53°
FULLERTON, CA 92837 weather forecast Day 1, 15 hours 1 PM 81° 80° Clear WSW   5 35% 51°
FULLERTON, CA 92837 weather forecast Day 1, 18 hours 4 PM 80° 80° Clear 0%

0% Thunder
( 0% severe)
WSW   7 36% 51°
FULLERTON, CA 92837 weather forecast Day 1, 21 hours 7 PM 70° 70° Clear SSW   2 53% 52°
Monday
16 MAR 2026
FULLERTON, CA 92837 weather forecast Day 2, 0 hours 10 PM 64° 66° Clear 0%

0% Thunder
( 0% severe)
S   1 70% 54°
Low 57° FULLERTON, CA 92837 weather forecast Day 2, 3 hours 1 AM 60° 61° Clear   CALM 78% 53°
High 90° FULLERTON, CA 92837 weather forecast Day 2, 6 hours 4 AM 59° 60° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 75% 51°

Partly Cloudy



FULLERTON, CA 92837 weather forecast Day 2, 9 hours 7 AM 59° 60° Partly Cloudy   CALM 72% 50°
FULLERTON, CA 92837 weather forecast Day 2, 12 hours 10 AM 77° 78° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   1 36% 48°
FULLERTON, CA 92837 weather forecast Day 2, 15 hours 1 PM 88° 85° Partly Cloudy WSW   6 22% 44°
FULLERTON, CA 92837 weather forecast Day 2, 18 hours 4 PM 87° 84° Clear 0%

0% Thunder
( 0% severe)
WSW   8 22% 44°
FULLERTON, CA 92837 weather forecast Day 2, 21 hours 7 PM 75° 75° Clear WSW   3 40% 49°

FULLERTON, CA extended weather forecast

Tuesday
17 MAR 2026
Wednesday
18 MAR 2026
Thursday
19 MAR 2026
Friday
20 MAR 2026
Saturday
21 MAR 2026
Low 58° Low 60° Low 61° Low 59° Low 61°
High 92° High 93° High 93° High 93° High 85°
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
2% Rain
Partly Cloudy
4% Rain
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