Forecast Summary
The next few hours will be mostly clear, with today reaching 26°C and dropping to 15°C. The coming days will be foggy throughout the day.
Current Weather
17°
Mostly Clear
Feels Like
25°
Min
10°
Max
26°
Compared to Yesterday
Unlock Historical Data
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Weather forecast for the next 48 hours.
UV Index
Wear sunscreen
Humidity
Current air moisture level
Daylight Hours
13 hours 42 minutes of sunlight today
05:56
Sunrise
19:39
Sunset
Daily Forecast
Weather forecast for the next 8 days.
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
Upgrade to access real-time air quality data for Fullerton.
Frequently asked questions about weather in Fullerton
How warm does it get in Fullerton?
The warmest month in Fullerton is August, with average high temperatures of 27°C. The average temperature during this period is around 23°C.
How cold does it get in Fullerton?
The coldest month in Fullerton is December, with average low temperatures of 10°C. The average temperature during this period is around 14°C.
What is the wettest time of year in Fullerton?
The wettest month in Fullerton is January, with an average of 72mm of precipitation.
What is the driest time of year in Fullerton?
The driest month in Fullerton is July, with an average of 2mm of precipitation.
Explore more weather forecasts
- Anaheim, California
- New York City, New York
- Brea, California
- Los Angeles, California
- Placentia, California
- Brooklyn, New York
- La Habra, California
- Chicago, Illinois
- Buena Park, California
- Houston, Texas
- Stanton, California
- Queens, New York
- Garden Grove, California
- Phoenix, Arizona
- La Mirada, California
- Philadelphia, Pennsylvania
Stay informed