Temperature
86 F at 8 PM; 92 F at its warmest, 1 PM, and 60 F at its coolest, 3 AM.
- Now
- 86F
- 8 PM
- Highest
- 92F
- 1 PM
- Lowest
- 60F
- 3 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/California/John Wayne Orange County International Airport
John Wayne Orange County International Airport, California
Large airport in Orange County, California* WHAT...High temperatures in the upper 80s to the mid 90s expected. * WHERE...Orange County Coastal Areas and San Diego County Coastal Areas. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase during hot temperatures. * ADDITIONAL DETAILS...Low temperatures will be in the high 60s to low 70s.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
83°
91°/62°
Clear·
Feels like 80°·Gentle breeze 12 mph NE
Alert. A Heat Advisory is in force for John Wayne Orange County International Airport until 8 PM Saturday. Read the alert in full, and see what it means in the Field Book.
Now. John Wayne Orange County International Airport is 83° and clear at 10 PM. The dew point is 37°, so the air feels dry and comfortable. Gentle breeze from the northeast at 12 mph.
Today and tonight. Tonight falls to about 73° by 2 AM, under a mostly clear sky. No rain is expected for the rest of the day.
The week. The warmest day ahead is tomorrow, near 95°, and the coolest Wednesday, near 69°. Rain is likely Tuesday (57%) and Wednesday (64%). The windiest day is tomorrow, with wind to 21 mph. Tomorrow is hot, 95°: heat is a danger to anyone outdoors for long.
The sky now. The Moon is a waxing crescent, 26% lit, and stays below the horizon until dawn. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 23 minutes long, 2 minutes shorter than yesterday.
0UV Low
33Air quality
18%Humidity
0%Cloud
Now
10:00 PM
83feels80
now, clear
Today
Oct 15
9162
17mph
UV 7
Fri
Oct 16
9573
21mph
UV 7
Sat
Oct 17
9073
UV 6
Sun
Oct 18
8467
UV 6
Mon
Oct 19
7966
UV 6
Tue
Oct 20
7163
57%
15mph
Wed
Oct 21
6959
64%
83°
91°62°
95°73°
90°73°
84°67°
79°66°
71°63°
69°59°
As of 10:00 PM in John Wayne Orange County International Airport, California.
Air quality
The air at John Wayne Orange County International Airport
Index 33, good, led by ozone. Read at 9 PM from its reporting area, Central Orange (CA), 11 miles off.
33Good
- Fine particles (PM2.5)12Good11.1 mi
- Ozone33Good40 ppb11.1 mi
- Coarse particles (PM10)26Good11.1 mi
- Nitrogen dioxide4Good4.8 ppb10 mi
- Carbon monoxide-0.2 ppm10 mi
The days ahead
Moderate each day through Fri Oct 16, led by fine particles. Yesterday measured 44, good.
GoodModerate
- 44YesterdayOct 14
- 53TodayOct 15
- 64FriOct 16
Smoke, the next 44 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.
Precipitation
What has fallen at John Wayne Orange County International Airport
None in the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.
- Last 24 hours
- 0.00in
- Last 3 days
- 0.00in
Visibility
How far you can see at John Wayne Orange County International Airport, the next 44 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- SNA
- ICAO
- KSNA
- IATA
- SNA
- Field elevation
- 56 ft
- Serves
- Santa Ana
- Kind
- Large airport
- Scheduled service
- Yes
- Its own instrument
- SNA
- Wind now
- From 40° at 10 mph, read 15 Oct, 20:53
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 02L / 20R | 5,700 ft | 150 ft | Asphalt | 28° / 208° | 10 mph head, on 02L | 2 mph from the right |
| 02R / 20L | 2,886 ft | 75 ft | Asphalt | 28° / 208° | 10 mph head, on 02R | 2 mph from the right |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Santa Ana/Jon-Wayne (SNA), John Wayne Orange County International Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 36 F, the air 17% saturated; the humidity ran from 13% at 3 PM to 67% at 2 AM.
- Dew point now
- 36F
- 8 PM
- Humidity now
- 17%
- Humidity, range
- 13 to 67%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
Set aside today: the gust read 37 mph in 16 reports in a row from 2 PM, the mark of a sensor that has stuck, so none of the day's wind is counted.
- Now
- -
- Strongest
- -
- Highest gust
- -
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.93 inHg at 8 PM, rising 0.03 inHg over 3 hours; 0.10 inHg lower than a day before.
- Now
- 29.93inHg
- 8 PM
- 3 hours
- +0.03inHg
- rising
- 24 hours
- -0.10inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
10 miles or more every hour.
- Now
- 10+mi
- Lowest
- 10+mi
- Hours under a mile
- 0
How it is measured: Fog types, Field Book FB-WAT-020
Cloud base
The lowest cloud base came down to 2,500 ft at 5 PM; a base was reported in 6 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 2,500ft
- 5 PM
- Hours with a base reported
- 6
How it is measured: Cloud classification, Field Book FB-SKY-001
Precipitation
None measured in the gauge in the last 24 hours.
- Last 24 hours
- 0.00in
- Wettest hour
- -
- Hours with some
- 0
How it is measured: ASOS, Field Book FB-INS-002
Santa Ana/Jon-Wayne: every reading, the last 7 days, 30 days and the year, and how well it reports
What is measuring near here
The 5 instruments nearest John Wayne Orange County International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.
measured now3 instruments
At an airfield/0.1 mi away/52 ft/4 ft below here
temp, wind, gust, visibility, precip, pressure
Laguna BeachNPRC1
At a river or reservoir gauge/6.2 mi away/951 ft/895 ft above here
temp, wind, gust, humidity, pressure
I-15 : Jurupa AvenueCF174
Beside a road/31.6 mi away/908 ft/852 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Costa Mesa 0.7 NCA-OR-64
In a volunteer observer's own ground/2.5 mi away/73 ft/17 ft above here
precip, snowfall, snow depth
Santa Ana Fire STNSTAC1
At a cooperative observer's station/4.8 mi away/125 ft/69 ft above here
snowfall, snow depth, precip, high, low
What the snow tracker reads here
Every instrument in this state
-
Snow on the ground
Elsewhere in California
33 places, each with its own forecast and its own instruments.
Big Bear Mountainski areaBishopcityBridgeporttownChina Peakski areaDodge Ridgeski areaDonner PassfeatureFresnocityHeavenlysurveyed ski areaHomewoodski areaJune Mountainski areaKirkwoodsurveyed ski areaLos AngelescityMammoth LakestownMammoth Mountainsurveyed ski areaMount ShastafeatureMount Shasta CitycityMount Shasta Ski Parkski areaMount WhitneyfeatureMountain Highski areaNorthstarsurveyed ski areaPalisades Tahoesurveyed ski areaReddingcitySacramentocitySan DiegocitySan FranciscocitySierra NevadafeatureSierra-at-Tahoeski areaSnow Valleyski areaSouth Lake TahoecitySugar Bowlski areaSusanvillecityTruckeetownYosemitefeature
Near John Wayne Orange County International Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Costa Mesacity, 3 mi
- Newport Beachcity, 4 mi
- Santa Anacity, 5 mi
- Irvinecity, 5 mi
- Tustincity, 5 mi
- Fountain Valleycity, 5 mi
- North Tustincommunity, 7 mi
- Huntington Beachcity, 7 mi
- Midway Citycommunity, 8 mi
- Garden Grovecity, 8 mi
- Orangecity, 9 mi
- Westminstercity, 9 mi
Airports near John Wayne Orange County International Airport
- Los Alamitos Army Air FieldSLI, 13 mi
- Fullerton Municipal AirportFUL, 15 mi
- Long Beach International AirportLGB, 19 mi
- Corona Municipal AirportAJO, 22 mi
- Chino AirportCNO, 25 mi
- Zamperini FieldTOA, 28 mi
- Brackett FieldPOC, 29 mi
- San Gabriel Valley AirportEMT, 30 mi