Fullerton, California hourly weather forecast
Friday 13 November 2026 | 16:50
18°
Broken clouds
Feels like 19°
- High
- 19°
- Low
- 16°
- Humidity
- 87%
- Wind
- 5 km/h
Hourly forecast / Fullerton
Conditions hour by hour
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Chance of rain
Wind speed
Humidity
Temperature and rain / Fullerton
The coming days
High
25°
Low
12°
Average high
22.1°
Average low
15.9°
Total rain
31.0 mm
Average rain
2.1 mm
Air quality - Fullerton
Particles and ozone
Good
5.40 µg/m³
0-1212-3535-5555+
The air is clean: enjoy the outdoors.
PM106.70µg/m³
Ozone71µg/m³
Data updated hourly
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Frequently asked questions
Quick answers about the weather in Fullerton
Tomorrow in Fullerton, expect Clear sky ☀️, with:\n\n- High of 21°\n- Low of 13°
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Our data is updated regularly to give you the most reliable forecast.
Last updated: 2026-11-14