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Fullerton weather
Current conditions and a 14-day forecast for Fullerton, United States. Looking for typical seasonal weather instead? See the historical climate averages.
Now
27°C
Clear sky · feels 30°C
Humidity
67%
relative humidity
Wind
10 km/h
10m wind speed
Chance of rain
0%
today
Next 24 hours in Fullerton
| Time | Conditions | Temp | Rain chance |
|---|---|---|---|
| 11am | Clear sky | 26°C | 0% |
| 12pm | Clear sky | 27°C | 0% |
| 1pm | Clear sky | 28°C | 0% |
| 2pm | Clear sky | 29°C | 0% |
| 3pm | Clear sky | 30°C | 0% |
| 4pm | Clear sky | 30°C | 0% |
| 5pm | Clear sky | 30°C | 0% |
| 6pm | Clear sky | 30°C | 0% |
| 7pm | Clear sky | 29°C | 0% |
| 8pm | Clear sky | 27°C | 0% |
| 9pm | Clear sky | 25°C | 0% |
| 10pm | Clear sky | 24°C | 0% |
| 11pm | Clear sky | 22°C | 0% |
| 12am | Clear sky | 22°C | 0% |
| 1am | Clear sky | 21°C | 0% |
| 2am | Clear sky | 21°C | 0% |
| 3am | Clear sky | 20°C | 0% |
| 4am | Clear sky | 20°C | 0% |
| 5am | Clear sky | 19°C | 0% |
| 6am | Clear sky | 19°C | 0% |
| 7am | Clear sky | 19°C | 1% |
| 8am | Clear sky | 22°C | 1% |
| 9am | Clear sky | 24°C | 1% |
| 10am | Partly cloudy | 26°C | 1% |
14-day forecast for Fullerton
| Day | Conditions | High / Low | Rain chance |
|---|---|---|---|
| Today | Clear sky | 30° / 17° | 0% |
| Thu, Jul 16 | Partly cloudy | 33° / 19° | 1% |
| Fri, Jul 17 | Clear sky | 36° / 20° | 0% |
| Sat, Jul 18 | Overcast | 38° / 22° | 1% |
| Sun, Jul 19 | Clear sky | 39° / 21° | 2% |
| Mon, Jul 20 | Overcast | 36° / 24° | 4% |
| Tue, Jul 21 | Light drizzle | 23° / 19° | 4% |
| Wed, Jul 22 | Light drizzle | 32° / 17° | 18% |
| Thu, Jul 23 | Moderate drizzle | 39° / 20° | 37% |
| Fri, Jul 24 | Overcast | 35° / 19° | 15% |
| Sat, Jul 25 | Slight rain showers | 22° / 14° | 16% |
| Sun, Jul 26 | Moderate rain showers | 15° / 14° | 32% |
| Mon, Jul 27 | Overcast | 20° / 14° | 24% |
| Tue, Jul 28 | Light drizzle | 30° / 14° | 26% |
Want more sun and moon detail for Fullerton? Use the sun calculator or moon calculator and search for Fullerton. For a live look at any other city, try the interactive weather tool.
Frequently asked questions
What's the weather like in Fullerton today?
Current conditions and today's forecast for Fullerton, United States are shown above, refreshed regularly through the day.
How accurate is a 14-day forecast?
A forecast is most reliable for the next 3-5 days. Beyond that, temperature and precipitation chances further out are a general trend rather than an exact prediction.
What is Fullerton's weather usually like?
For long-term averages — typical monthly temperatures and rainfall based on years of historical data — see Fullerton's climate page rather than this live forecast.