Fullerton Hourly Weather

Clear sky 18°

Clear sky, feels like 18°.

Fullerton, California, United States · Tuesday, 3 November 2026 19:45 local time

Low/High
12°/26°
Humidity
74%
Visibility
20.0 km
Wind
6.1 km/h
Dew point
13°
UV
0.0

Next 24 Hours

Fullerton Hourly Weather — 48 hours ahead

TimeWeatherTemperatureFeels likeRainHumidityWind
Clear sky 18°18°0% 72%6 km/h
Clear sky 17°17°0% 75%6 km/h
Clear sky 16°17°0% 78%4 km/h
Mostly clear 16°16°0% 82%6 km/h
Mostly clear 15°15°1% 84%4 km/h
Mostly clear 15°14°2% 86%8 km/h
Partly cloudy 14°14°3% 89%7 km/h
Partly cloudy 14°14°2% 90%8 km/h
Mostly clear 14°14°1% 90%8 km/h
Mostly clear 14°14°0% 91%7 km/h
Clear sky 14°13°0% 90%8 km/h
Mostly clear 13°13°0% 89%8 km/h
Clear sky 14°14°0% 90%8 km/h
Clear sky 17°17°0% 75%11 km/h
Clear sky 20°20°0% 69%8 km/h
Clear sky 21°22°0% 61%6 km/h
Clear sky 23°23°0% 53%5 km/h
Clear sky 24°24°0% 48%5 km/h
Clear sky 25°25°0% 43%4 km/h
Clear sky 25°25°0% 41%4 km/h
Clear sky 25°24°0% 45%10 km/h
Clear sky 23°22°0% 52%13 km/h
Clear sky 21°20°0% 59%9 km/h
Clear sky 19°19°0% 67%6 km/h
Clear sky 18°18°0% 71%5 km/h
Clear sky 17°17°0% 73%4 km/h
Partly cloudy 16°16°0% 76%6 km/h
Partly cloudy 16°15°0% 79%7 km/h
Mostly clear 15°14°0% 84%8 km/h
Overcast 14°14°0% 84%8 km/h
Overcast 15°14°0% 81%8 km/h
Overcast 14°13°0% 80%8 km/h
Overcast 14°13°0% 81%8 km/h
Overcast 14°12°0% 78%8 km/h
Mostly clear 14°12°0% 72%9 km/h
Mostly clear 14°12°0% 69%8 km/h
Clear sky 14°13°0% 68%8 km/h
Clear sky 18°17°0% 58%4 km/h
Clear sky 22°22°0% 39%1 km/h
Clear sky 25°24°0% 31%1 km/h
Clear sky 26°26°0% 26%2 km/h
Partly cloudy 28°27°0% 24%4 km/h
Overcast 28°27°0% 23%5 km/h
Overcast 28°26°0% 20%6 km/h
Overcast 28°25°0% 20%9 km/h
Overcast 27°24°0% 21%10 km/h
Overcast 26°22°0% 22%10 km/h
Overcast 24°22°0% 28%11 km/h

Summary

Over the next 48 hours in Fullerton, temperatures range from 13–28°C. The chance of rain stays low (3% at most).

Updated at 19:48 local time, 3 November 2026

Fullerton Hourly Temperature and Chance of Rain

Fullerton Air Quality

Moderate · AQI 58

Air quality is acceptable; people who are unusually sensitive should consider limiting prolonged outdoor exertion.

PM2.5 (µg/m³)15
PM10 (µg/m³)18
O₃ (µg/m³)44
NO₂ (µg/m³)49
SO₂ (µg/m³)5.3
CO (µg/m³)222

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