How does NOAA issue severe storm watches for Fullerton?

The National Weather Service (NWS) monitors atmospheric instability across California. When convective storms, tornado potential, or flash floods are detected, automated NOAA advisories are immediately broadcasted.

What are the best outdoor weather hours in Fullerton today?

Check the 24-hour hourly trend chart above to identify windows of minimal rain probability, low UV index periods, and mild temperatures.

CA, USAZIP 92831Live NOAA Station

Fullerton, CA

Q: What is the current temperature and forecast in Fullerton, California?

The current weather in Fullerton is around 62°F. Forecast models from NOAA and high-resolution satellite imagery provide 10-day trends and real-time precipitation radars updated every 15 minutes.

Mainly clear•Ressenti 64°F+1° heat index

89°F/62°F

4 mph 109°

87%Humidité

62°F

National Weather Service High-Resolution Rapid Refresh (HRRR)

Mis à jour: 12:00 AM (America/Los_Angeles)

Daily Meteorological Briefing

Fullerton, CA

Synthesized forecast and practical day-planning insights

NOAA HRRR Stream

Expect mild and stable weather across Fullerton, CA today.

Current temperature is 62°F (feels like 64°F), with daytime highs reaching 89°F and overnight lows around 62°F. Humidity is at 87%, with atmospheric pressure steady at 1010.7 hPa.

Overall excellent conditions for commuting and outdoor routines.

Daily Range

Δ 15° Variation

Rain Likelihood

Low (< 10%)

Solar Exposure

UV 0.05 • Moderate

24-Hour Temperature & Rain Outlook

Hourly temperature progression and precipitation probability

Temp (°F) Rain (%)

Prévisions heure par heure

Next 16 Hours

Now

67°F

1 AM

67°F

2 AM

66°F

3 AM

64°F

4 AM

64°F

5 AM

64°F

6 AM

63°F

7 AM

62°F

8 AM

67°F

9 AM

69°F

10 AM

72°F

11 AM

77°F

12 PM

83°F

1 PM

87°F

2 PM

89°F

3 PM

87°F

Prévisions sur 10 jours

Extended 10-day meteorological outlook

10-Day Range

Today

Sep 23

62°F

89°F

Thu

Sep 24

67°F

82°F

Fri

Sep 25

67°F

91°F

Sat

Sep 26

76°F

92°F

Sun

Sep 27

73°F

88°F

Mon

Sep 28

71°F

84°F

Tue

Sep 29

72°F

97°F

Wed

Sep 30

80°F

100°F

Thu

Oct 1

81°F

99°F

Fri

Oct 2

80°F

96°F

Weather Details & Observations

Real-time atmospheric measurements and environmental indicators

Live Feed

Indice UVLow

0.05 / 11+

No protection neededPeak 6.9

Vent109°

4 mph

Wind Gusts:5 mph

Conditions:Gentle breeze

Sun CycleDaylight

Sunrise06:40 AM

Sunset06:46 PM

Solar Noon:12:54 PM

HumiditéHumid

87%

Point de rosée:58°F

PressionSteady

29.85 inHg

Trend:Stable (+0.1 hPa)

VisibilitéClear

9.2 mi

Haze:Minimal

Air Quality Index (AQI)Moderate

68US EPA Standard

Air quality is acceptable for most people.

PM2.523 µg

OZONE6 µg

PM1024 µg

Daily Lifestyle & Activity Index

Practical recommendations tailored to current local conditions

Outdoor SportsGood

Pleasant conditions for light outdoor activities.

Car WashRecommended

Dry conditions will keep your vehicle clean.

Pollen & AllergyLow Risk

Pollen counts remain in the comfortable range.

Driving SafetyOptimal

Dry pavement and clear visibility throughout.

Sun & Moon • Celestial Dynamics

Solar orbital arc trajectory and lunar cycle visibility

Astronomy Telemetry

Solar Day TrackDaylight Arc

Sunrise11:40 PM

Daylight ~13h

Sunset11:46 AM

Lunar Phase & StargazingNight Sky

Waxing Gibbous

88% Illumination

Stargazing condition: Optimal Visibility

Next Full Moon in ~4 daysTidal Currents Normal

Questions fréquentes sur la météo - Fullerton, California

The current weather in Fullerton is around 62°F. Forecast models from NOAA and high-resolution satellite imagery provide 10-day trends and real-time precipitation radars updated every 15 minutes.

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