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Rancho San Joaquin, Irvine, CA 92612
Weather Conditions Updated at 10:23pm PDT on 8/18/22
Sky Temperature (°F) Wind 

Visibility 10 mi.


Temp Rate °/hr.
24-hr. Change °

Max 14 mph (2:45pm)
High Temperature 84° (1:09pm)
Low Temperature 68° (10:23pm)

Dew Point

Wet Bulb Temperature
Rainfall Since Midnight

24-hour Change
29.90 in. 

Cloud Base ft.
Density Altitude
Pressure Altitude
Vapor Pressure 0.61 in.
Virtual Temperature 72°

Coastal Orange County Forecast
NowcastArea Forecast Discussion

Meteoblue Marine Forecast Eastern Pacific Hurricane Center

National Temperature Extremes
Frequently Asked Questions About This Product

Thursday, Contiguous 48 United States
at Death Valley (Furnace Creek), CA  Low: at Hamilton 22ESE, MT & Albany 9S, WY

Temperature Color Key

Station Statistics

Station Location and Elevation
Rancho San Joaquin, Irvine, CA  92612
Latitude: 33.663, Longitude: -117.830
Elevation: 72 Feet Above Sea Level

Station Temperature and Wind Extremes
This Month's High Temp (8/9/22)
This Month's Low Temp (8/7/22)
This Month's Peak Wind Gust mph (8/8/22)

This Year's High Temp (4/8/22)
This Year's Low Temp (2/24/22)
This Year's Peak Wind Gust: mph (2/10/22)

Record High Temp* (7/6/18)
Record Low Temp* (1/14/07)
Record Wind Gust* 47 mph (1/16/08)
Record Low Pressure*: 29.08 in. (1/21/10)
*Record for Since 3/1/2004

Solar Activity

Solar X-rays:  
Geomagnetic Field:  
Courtesy of
Mt. Wilson Solar Tower Home Page
U.S. Fronts

Current Temperatures
Moon Phase

Heating° Days (Current) 0
Monthly Heating° Days (To Date): 0
Yearly Heating° Days (To Date) 960
Cooling° Days (Current) 9
Monthly Cooling° Days (To Date) 193
Yearly Cooling° Days (To Date) 983
Wind Run (Current)  17.68 mi.
Wind Run Monthly (To Date) 327.44 mi.
Wind Run Yearly (To Date) 3787.81 mi.
Rainfall Sentinel
Last Measurable Rainfall
Monthly Rainfall (To Date)
Annual Rainfall (To Date)*
Last Year's Annual Rainfall* 4.23 in.
Normal Annual Rainfall* 13.33 in.
*Annual Rainfall is based on the California Water Year,
  which runs from October 1 through September 30.

Regional Observations

Weather Trend Graphs


Area Forecast Discussion
FXUS66 KSGX 190435 AAA

Area Forecast Discussion
National Weather Service San Diego CA
930 PM PDT Thu Aug 18 2022

The summer doldrums will continue through next week with warm and 
humid weather. A weak monsoonal flow will maintain a chance for 
mainly afternoon and evening thunderstorms over the mountains and 
deserts. The greatest chances for thunderstorms will be Friday and 
Saturday, and again around the middle of next week. Patchy night and 
morning low clouds and fog will spread inland each night, and then 
burn back offshore each morning, along with periods of higher clouds 
at times.



Evening Update:

No updated were needed this evening. Very limited convection 
occurred today within our area, there were just a couple of cells in 
the Santa Rosa Mountains, just west of the Coachella Valley. 
Convection was probably limited due to subsidence along the eastern 
periphery of the East Pac High Pressure ridge. There may be a little 
better chance for convection Friday afternoon, but still only 
isolated coverage is expected for Friday afternoon and early 
evening. Nonetheless conditions will remain very warm and humid 
across SoCal, and any storms that develop could contain brief heavy 
downpours and slow storm motion. 

Remainder of Previous Discussion (issued at 148 PM PDT):

High pressure aloft will remain in control over the SW through the 
weekend and next week. Shifting and repositioning of the axis of 
high pressure will determine the direction of our weak flow aloft, 
and ultimately, moisture availability. Through the coming weekend, 
we will remain on the edge of some very deep tropical moisture that 
is smothering NW MX and the Lower Colorado River Valley of SE CA. 
Any convective systems that develop there, could influence our 
weather, due to outflow and convective debris. Forecasting those 
details beyond anything more than 12-24 hours will be difficult to 
impossible, so expect forecast adjustments. 

Based on the various ensemble projections, more show greater 
precipitable water values at various places in the CWA Friday into 
Saturday, with drier solutions predominating early next week, 
followed by another increase in moisture mid next week. Following 
the PW trends gives us some variation in the POPS, but nothing 
concrete. Bottom line...We remain in a weak monsoon pattern well 
into next week, which favors afternoon, mountain convection, and to 
a lesser extent, the deserts. As of now, we don't see a good chance 
for any of this activity to make it to the coast, but it wouldn't be 
surprising if something didn't develop next week for a few hours.

Except for periods of extensive cloudiness from the east, and/or 
precipitation, daytime temperatures will be close to mid summer 


190400Z...Coast/Valleys...Areas of low clouds will continue 
developing along the immediate coast through 08Z Fri and spread up 
to 20 miles inland by 13Z Fri. Bases will be 1000-1200 ft MSL with 
tops to 1400 ft MSL. Local vis 3-5 miles will occur in the coastal 
valleys 10Z-15Z. Most areas will clear 15Z-17Z with mostly SCT 
clouds at/above 15000 ft MSL Fri afternoon. Areas of stratus will 
develop near the immediate coast again Fri evening.

Mountains/Deserts...SCT-occasional BKN clouds at/above 15000 ft MSL 
will continue through Fri evening with mostly unrestricted vis. 
There is a slight chance of TSRA Fri afternoon/early evening with 
bases 8000-10000 ft MSL and tops to 40000 ft MSL along with strong 
up/downdrafts and local gusty surface winds.


No hazardous marine weather is expected through Tuesday. 


Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.






© (rev. 202208161720)
Conditions Updated once per minute.
Page will automatically refresh every five minutes.
All temperatures and dew points are in degrees Fahrenheit.

Weather Hardware by Davis Instruments
Weather Software by Ambient Weather, augmented by WeatherDisplay


Radar courtesy of NWS and WUnderground
Satellite courtesy of NWS
U.S. Fronts map courtesy of
Current Temperatures map courtesy of
Local Forecast courtesy of
Wind direction image courtesy of Long Beach, WA Weather
Regional Observations courtesy of

(You knew this was coming!) Never base important decisions on this or any weather information obtained from the Internet.
This site reports weather observed at the Rancho San Joaquin village of Irvine, California.
We are not affilliated with the Rancho San Joaquin Golf Course, the Rancho San Joaquin Homeowner's Association
nor the Rancho San Joaquin Apartments.
So there!

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