WHITTIER, CA 90603 Weather Forecast & Current Conditions

Local Weather
- Local weather by ZIP or City
- Local area snow depth
- CURRENT WEATHER MAPS
- - Fronts & Pressure Centers
- - Current U.S. Temperatures
- - Northwest U.S.
- - Northeast U.S.
- - Mid-Atlantic U.S.
- - Midwest U.S.
- - Central Plains U.S.
- - Southeast U.S.
- - Southern Plains U.S.
- - Southwest U.S.
- - Alaska
10 Day Forecasts
Other Forecasts
- Snowstorm Forecast
- U.S. 6-hourly Snowfall Forecast
- 3 DAY NAM MODEL FORECASTS
- - Clouds & Precipitation
- - Temperature
- 7 DAY NWS FORECASTS
- - Weather Type
- - Precip. Probability
- - High Temperatures
- - Low Temperatures
- - Cloud Cover
- - Wind
- - Relative Humidity
- - Dewpoint
- - Snowfall
- SEASONAL FORECASTS
- - Temperature
- - Precipitation
Severe Weather
Radar
- U.S. RADAR (NWS interactive)
- U.S. RADAR (by state)
Satellite

90603 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
FULLERTON, CA Current Weather
2:53 AM PDT MAY 17, 2026
Overcast 61°F
Feels Like:	61°F
Dewpoint:	55°F
Rel. Hum.:	81%
Visibility:	9 miles
Wind:	Calm
Pressure:	29.81 inches
Last 72 hours
Local Area Snow Depth
California Current Weather
California MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

90603 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	WHITTIER, CA 90603 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Cloudy this morning, becoming partly cloudy. Highs in the mid 70s.

TONIGHT
Areas of low clouds and fog. Lows around 60.

MONDAY
Areas of low clouds and fog. Highs around 80.

MONDAY NIGHT
Mostly clear. Lows around 60.

TUESDAY
Sunny. Highs in the mid 80s.

TUESDAY NIGHT
Clear. Lows around 60.

WEDNESDAY
Sunny. Highs in the mid 80s.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 50s.

THURSDAY
Partly cloudy in the morning, then sunny. Highs in the lower to mid 80s.

THURSDAY NIGHT
Mostly clear. Lows in the mid 50s.

FRIDAY
Partly cloudy in the morning, then sunny. Highs in the lower 80s.

FRIDAY NIGHT
Mostly clear. Lows in the mid 50s.

SATURDAY
Partly cloudy in the morning, then sunny. Highs around 80.

90603 WEATHER SATELLITE LOOPS

Visible Weather Satellite
WHITTIER, CA 90603

Infrared Weather Satellite
WHITTIER, CA 90603

90603 WEATHER RADAR LOOP

NEXRAD Weather Radar
WHITTIER, CA 90603

MOS COMPUTER WEATHER FORECAST

FULLERTON, CA 3 hourly weather forecast

weather forecast created 8:00 PM EDT 5/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
PDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Sunday
17 MAY 2026

11 PM

62°

Partly Cloudy

0% Thunder
( 0% severe)

SSE 7

81%

56°

Low 58°

2 AM

60°

Partly Cloudy

ESE 5

87%

56°

High 73°

5 AM

59°

60°

Mostly Cloudy

0% Thunder
( 0% severe)

ESE 3

87%

55°

Mostly Cloudy

8 AM

62°

Mostly Cloudy

SSE 5

78%

55°

11 AM

68°

Partly Cloudy

0% Thunder
( 0% severe)

S 6

63%

55°

2 PM

71°

Partly Cloudy

SSW 9

63%

58°

5 PM

70°

Partly Cloudy

0% Thunder
( 0% severe)

SSW 9

63%

57°

8 PM

64°

Partly Cloudy

S 8

75%

56°

Monday
18 MAY 2026

11 PM

62°

61°

Partly Cloudy

0% Thunder
( 0% severe)

SSE 8

84%

57°

Low 57°

2 AM

60°

Partly Cloudy

SE 6

87%

56°

High 77°

5 AM

59°

60°

Mostly Cloudy

0% Thunder
( 0% severe)

ESE 3

87%

55°

Decreasing Clouds

8 AM

62°

63°

Partly Cloudy

CALM

75%

54°

11 AM

70°

Clear

0% Thunder
( 0% severe)

SW 5

49%

50°

2 PM

75°

Clear

SW 8

43%

51°

5 PM

75°

Clear

0% Thunder
( 0% severe)

SW 9

41%

50°

8 PM

68°

Clear

SW 7

53%

50°


FULLERTON, CA extended weather forecast
Tuesday 19 MAY 2026	Wednesday 20 MAY 2026	Thursday 21 MAY 2026	Friday 22 MAY 2026	Saturday 23 MAY 2026
Low 59°	Low 59°	Low 60°	Low 62°	Low 60°
High 76°	High 75°	High 76°	High 74°	High 76°

Partly Cloudy 3% Rain	Partly Cloudy 2% Rain	Partly Cloudy	Overcast 1% Rain	Overcast 5% Rain

SELECT BOX EXAMPLES:

for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:

Whittier, CA
Whittier, CA snow
Whittier, CA radar
CA map

-or-
-or-
-or-

90603
90603 snow
90603 radar

-or-
-or-

CA
CA snow

Put our free WeatherStreet weather lookup on your web page.

Terms & Conditions
This is not clickable - please e-mail us separately

WHITTIER, CA 90603 Weather Forecast & Current Conditions

FULLERTON, CA Current Weather

WHITTIER, CA 90603 Weather Forecast

FULLERTON, CA 3 hourly weather forecast

FULLERTON, CA extended weather forecast

FULLERTON, CA
Current Weather

WHITTIER, CA 90603
Weather Forecast