Weather in Fullerton, United States 🇺🇸
Weather Forecast in Fullerton
Right now Fullerton is 26°C with sunny, feeling like 27°C. Expect 64% humidity and winds of about 10 km/h, and the UV index is 8 (very high). The next few days in Fullerton look set for about 20°C up to 33°C. ⚠️ Heat Advisory issued July 20 at 9:26PM PDT until July 27 at 8:00PM PDT by NWS San Diego CA
Hourly Forecast for Fullerton
14-Day Forecast for Fullerton
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Additional Forecasts for Fullerton
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Historical Weather
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Best Time to Be Outside in Fullerton Today
The most comfortable window in Fullerton today looks like 19:00 to 19:00, when it is around 28°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Fullerton
What is the temperature in Fullerton right now?
It is currently 26°C (78°F) in Fullerton, sunny (feels like 27°C).
What's the weather like in Fullerton right now?
Conditions in Fullerton right now: Sunny, humidity 64%, wind 10 km/h SW.
What is today's forecast for Fullerton?
Today in Fullerton: high 33°C, low 20°C, sunny. Chance of rain: 4%.
What is the 7-day weather forecast for Fullerton?
Daily highs and lows for Fullerton:
- 2026-07-21: 33°C / 20°C
- 2026-07-22: 29°C / 22°C
- 2026-07-23: 32°C / 23°C
- 2026-07-24: 31°C / 24°C
- 2026-07-25: 33°C / 24°C
- 2026-07-26: 32°C / 24°C
- 2026-07-27: 30°C / 24°C
Is it going to rain in Fullerton today?
There is a 4% chance of rain in Fullerton today.
What is the wind speed in Fullerton right now?
Wind in Fullerton is currently 10 km/h (6 mph) from the SW.
What is the UV index in Fullerton right now?
The UV index in Fullerton is currently 8.4 (very high). Sun protection is recommended when the index is 3 or higher.
