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Fullerton, CA 92834 Weather
Current conditions
Observed at FW0063 Fullerton CSU · 28 min ago
Forecast
10-day-
Tonight
A chance of rain showers after 5am. Mostly cloudy, with a low around 62. Southeast wind 0 to 5 mph. Chance of precipitation is 30%.
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Wednesday
Rain showers likely. Mostly cloudy, with a high near 76. South wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
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Wednesday Night
Rain showers likely before 11pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 62. Southeast wind 0 to 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
National Weather Service forecast updated 13 hrs ago.
Hourly
Hourly forecast- Now67°
- 1 AM65°
- 2 AM64°
- 3 AM64°
- 4 AM63°
- 5 AM62°25%
- 6 AM62°25%
- 7 AM62°25%
- 8 AM64°25%
- 9 AM68°25%
- 10 AM71°25%
- 11 AM73°54%
- 12 PM75°54%
- 1 PM75°54%
- 2 PM75°54%
- 3 PM75°54%
- 4 PM75°54%
- 5 PM73°74%
- 6 PM72°74%
- 7 PM70°74%
- 8 PM69°74%
- 9 PM68°74%
- 10 PM67°74%
- 11 PM66°97%
10-day forecast
Details- TonightOct 20Mostly Cloudy then Chance Rain Showers25%62°
- TodayOct 21Rain Showers Likely97%62°76°
- ThuOct 22Showers And Thunderstorms89%56°70°
- FriOct 23Sunny56°73°
- SatOct 24Sunny59°79°
- SunOct 25Sunny61°82°
- MonOct 26Sunny60°83°
- TueOct 27Mostly Sunny83°
- WedOct 28Cloudy68°91°
- ThuOct 29Cloudy65°86°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Fullerton
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- WedGood (50)
North Orange CO, CA reporting area · 56 min ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyLong Beach Area, records since 1958. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Los Angeles 37 km
- Long Beach 30 km
- Anaheim 5 km
- Riverside 47 km
- Santa Ana 15 km
- Irvine 24 km
- Fontana 49 km
- Huntington Beach 26 km
- Glendale 44 km
- Garden Grove 12 km
- Rancho Cucamonga 38 km
- Ontario 31 km
Forecasters' discussion
From the National Weather Service office in SGX, issued 2 hrs ago
Synopsis
A low pressure system moving southward off the California coast will bring general cooling through Thursday. It is also expected to produce showers and a slight chance of thunderstorms for late Wednesday through Thursday is it moves inland through California into Nevada. Warmer and drier for next weekend. Offshore flow on Saturday could produce gusty northeast to east winds in and below mountain passes and canyons as well as the Inland Empire corridor between the Cajon Pass and the Santa Ana Mountains. The offshore flow weakens for Sunday into early next week.
Discussion
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
The low pressure system west of Point Conception continues to move south before turning east Wednesday. It will move through SoCal on Thursday and Friday. It will bring further cooling, a deepening marine layer with more low clouds, and widespread precipitation. Showers could spread into coastal areas during the afternoon on Wednesday. Those showers are expected to spread farther inland for Wednesday night into Thursday with the greatest chances for thunderstorms for late Wednesday night into Thursday.
Between Wednesday and Thursday night, rainfall across Orange and southwestern San Bernardino Counties could range from around 1 inch near the coast to as much as 2 inches in the mountains. Rainfall for San Diego County will range from around 1 inch in North County to 0.50 to 0.75 near the border. High desert areas will receive around 0.50 inch of rainfall and the low deserts will receive 0.25 inch or less. Probabilities for 0.10 inch or more of rainfall from Wednesday morning through Thursday night exceed 90 percent for the coast, valleys, and mountains. Probabilities for 0.50 inch or more exceed 80 percent for the mountains as far south as the northern half of San Diego County. Probabilities for 1 inch or more range from 15 to 50 percent from the coast to the mountains for Orange and southwestern San Bernardino Counties. Probabilities for 2 inches or more exceed 10 percent for the mountains of southwestern San Bernardino County.
High temperatures on Thursday will range from around 5 degrees below average near the coast to 15 to 20 degrees below average for mountain elevations above 6000 feet. High temperatures on Thursday will be in the 60s to around 70 for the coast and valleys and in the 40s and 50s for the mountains.
Precip tapers off late Thu into Fri as the low pressure system moves eastward into AZ.
Marine
A storm system will move through the coastal waters late Wednesday through Thursday. Southerly winds Wednesday will shift to southwesterly Wednesday night, then westerly Thursday, with occasional wind gusts exceeding 20 knots. There is a 15-25% chance of TSRA Wednesday night through Thursday. No additional hazardous marine conditions are expected Thursday night through Sunday.
Beaches
Surf and tides will continue to diminish overnight.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.