Weather in Fullerton
Current conditions, today's hourly forecast, and a 3-day outlook for Fullerton, United States (America/Los_Angeles). Data from WeatherAPI.com.
- High / Low
- 19° / 34°
- Wind
- 5 km/h S
- Humidity
- 91%
- Rain today
- 6%
- UV
- 0
Active alerts
- Heat Advisory Moderate
Heat Advisory issued July 28 at 9:01PM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
Areas: Orange County Coastal
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* WHAT...High temperatures in the mid 80s to lower 90s for higher coastal terrain expected. * WHERE...Orange County Coastal Areas. * WHEN...From 10 AM Friday to 8 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.
- Extreme Heat Warning Severe
Extreme Heat Warning issued July 28 at 9:01PM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
Areas: Santa Ana Mountains and Foothills
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* WHAT...Dangerously hot conditions with temperatures of 90 to 100 expected. * WHERE...Santa Ana Mountains and Foothills. * WHEN...From 10 AM Friday to 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
- Extreme Heat Warning Severe
Extreme Heat Warning issued July 28 at 9:01PM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
Areas: Orange County Inland
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* WHAT...Dangerously hot conditions with high temperatures mid to upper 90s east of Interstate 5 expected. * WHERE...Orange County Inland Areas. * WHEN...From 10 AM Friday to 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
- Heat Advisory Moderate
Heat Advisory issued July 29 at 3:16AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
Areas: Orange County Coastal
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* WHAT...High temperatures in the mid 80s to lower 90s for higher coastal terrain expected. * WHERE...Orange County Coastal Areas. * WHEN...From 10 AM Friday to 8 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.
- Extreme Heat Warning Severe
Extreme Heat Warning issued July 29 at 3:16AM PDT until August 2 at 8:00PM PDT by NWS San Diego CA
Areas: Orange County Inland
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* WHAT...Dangerously hot conditions with high temperatures mid to upper 90s east of Interstate 5 expected. * WHERE...Orange County Inland Areas. * WHEN...From 10 AM Friday to 8 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Today, hour by hour
- 06:00 19° 29%
- 07:00
19° 23% - 08:00 21° 20%
- 09:00
22° 10% - 10:00 25° 4%
- 11:00 32° 2%
- 12:00 34° 1%
- 13:00 31° 1%
3-day outlook
- Wed 29 Jul Sunny Rain 6% 19° / 34°
- Thu 30 Jul Sunny Rain 2% 22° / 32°
- Fri 31 Jul Sunny Rain 1% 23° / 33°