Temperature
82 F at 7 PM; 87 F at its warmest, 1 PM, and 60 F at its coolest, 12 AM.
- Now
- 82F
- 7 PM
- Highest
- 87F
- 1 PM
- Lowest
- 60F
- 12 AM
How it is measured: Stevenson screen and siting, Field Book FB-INS-009
Airports/California/Ontario International Airport
Ontario International Airport, California
Large airport in San Bernardino County, California* WHAT...For Thursday and Friday northeast winds 25 to 35 mph with gusts 55 to 65 mph possible. Gusts over 65 mph possible near the Cajon Pass. For Saturday, winds will turn more easterly with gusts 35 to 45 mph, strongest below the San Gorgonio Pass. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Damaging winds could blow down trees and power lines. Power outages are possible. Travel could be difficult for high profile vehicles. * ADDITIONAL DETAILS...Winds will be strongest on Friday.
People are urged to secure loose objects that could be blown around or damaged by the wind.
80°
90°/60°
Clear·
Feels like 79°·Gentle breeze 13 mph NE
Alert. A High Wind Warning is in force for Ontario International Airport until 8 PM Saturday. Read the alert in full, and see what it means in the Field Book.
Now. Ontario International Airport is 80° and clear at 8 PM. The dew point is 34°, so the air feels dry and comfortable. Gentle breeze from the northeast at 13 mph, gusting to 30 mph.
Today and tonight. Tonight falls to about 69° by 7 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 90°, and the coolest Wednesday, near 67°. Rain is likely Tuesday (53%) and Wednesday (64%). The windiest day is tomorrow, with wind to 22 mph.
The sky now. The Moon is a waxing crescent, 26% lit, and sets at 9:37 PM. The next full Moon is Sunday, Oct 25. Look for Saturn, bright in the east-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 22 minutes long, 2 minutes shorter than yesterday.
0UV Low
41Air quality
18%Humidity
0%Cloud
Now
8:00 PM
80feels79
13mph
Today
Oct 15
9060
24mph
UV 7
Fri
Oct 16
9069
22mph
UV 7
Sat
Oct 17
8866
14mph
UV 6
Sun
Oct 18
8664
UV 7
Mon
Oct 19
8363
13mph
UV 7
Tue
Oct 20
7259
53%
13mph
Wed
Oct 21
6755
64%
80°
90°60°
90°69°
88°66°
86°64°
83°63°
72°59°
67°55°
As of 8:00 PM in Ontario International Airport, California.
Air quality
The air at Ontario International Airport
Index 41, good, led by ozone. Read at 8 PM from its reporting area, Metro Riverside CO (CA), 11 miles off.
41Good
- Fine particles (PM2.5)19Good-
- Ozone41Good-
- Coarse particles (PM10)17Good-
The days ahead
Highest 83, moderate, Fri Oct 16, led by fine particles. Yesterday measured 48, good.
GoodModerate
- 48YesterdayOct 14
- 44TodayOct 15
- 83FriOct 16
Smoke, the next 46 hours
Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.
Precipitation
What has fallen at Ontario International Airport
None in the last 3 days, to Thu 7 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 Ontario International Airport, the next 46 hours
Visibility stays 10 miles or more through Sat 5 PM.
F
Now, today, and the week
Weather instrument stations by state
Airfield
- Code
- ONT
- ICAO
- KONT
- IATA
- ONT
- Field elevation
- 944 ft
- Serves
- Ontario
- Kind
- Large airport
- Scheduled service
- Yes
- Its own instrument
- ONT
- Wind now
- From 60° at 10 mph, read 15 Oct, 19:53
Runways
| Runway | Length | Width | Surface | Heading, true | Wind along it now | Crosswind now |
|---|---|---|---|---|---|---|
| 08L / 26R | 12,197 ft | 150 ft | Concrete | 90° / 270° | 9 mph head, on 08L | 5 mph from the left |
| 08R / 26L | 10,200 ft | 150 ft | Concrete | 90° / 270° | 9 mph head, on 08R | 5 mph from the left |
Measured here
What the airfield's own instrument measured, the last 24 hours
Every hour from Ontario INTL Arpt (ONT), Ontario International Airport's own instrument, measure by measure, on the field's own clock.
Humidity and dew point
A dew point of 34 F, the air 18% saturated; the humidity ran from 14% at 3 PM to 51% at 12 AM.
- Dew point now
- 34F
- 7 PM
- Humidity now
- 18%
- Humidity, range
- 14 to 51%
How it is measured: Humidity variables, Field Book FB-WAT-002
Wind
12 mph from the east at 8 PM; at its strongest 25 mph, 4 PM, with a gust of 51 mph at 10 AM.
- Now
- 12mph
- from the east
- Strongest
- 25mph
- 4 PM
- Highest gust
- 51mph
- 10 AM
How it is measured: Coriolis as geometry, Field Book FB-ENG-008
Pressure
29.98 inHg at 8 PM, rising 0.03 inHg over 3 hours; 0.08 inHg lower than a day before.
- Now
- 29.98inHg
- 8 PM
- 3 hours
- +0.03inHg
- rising
- 24 hours
- -0.08inHg
How it is measured: Hydrostatic balance, Field Book FB-ENG-003
Visibility
Down to 9 miles at 10 AM; 10 miles or more now.
- Now
- 10+mi
- Lowest
- 9mi
- 10 AM
- 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 5,000 ft at 2 PM; a base was reported in 9 of the hours.
- Lowest base now
- -
- Lowest in 24 hours
- 5,000ft
- 2 PM
- Hours with a base reported
- 9
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
Ontario INTL Arpt: 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 Ontario International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.
measured now3 instruments
At an airfield/0.0 mi away/942 ft/2 ft below here
temp, wind, gust, visibility, precip, pressure
I-15 : Jurupa AvenueCF174
Beside a road/2.9 mi away/908 ft/36 ft below here
temp, pavement temp, wind, visibility, precip
A remote fire weather station/8.2 mi away/1,657 ft/713 ft above here
temp, wind, gust, humidity, pressure
measured daily2 instruments
Rancho Cucamonga 1.5 SWCA-SR-7
In a volunteer observer's own ground/3.6 mi away/1,211 ft/267 ft above here
precip, snowfall, snow depth
At a cooperative observer's station/14.2 mi away/850 ft/94 ft below 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 Ontario International Airport
The nearest places, each with its own forecast and the instruments nearest it.
- Ontariocity, 2 mi
- Uplandcity, 5 mi
- Rancho Cucamongacity, 5 mi
- Chinocity, 5 mi
- Montclaircity, 6 mi
- Eastvalecity, 6 mi
- Claremontcity, 8 mi
- San Antonio Heightscommunity, 8 mi
- Pomonacity, 9 mi
- Jurupa Valleycity, 9 mi
- Chino Hillscity, 9 mi
- Fontanacity, 9 mi
Airports near Ontario International Airport
- Chino AirportCNO, 6 mi
- Upland-Cable AirportCCB, 6 mi
- Brackett FieldPOC, 11 mi
- Corona Municipal AirportAJO, 11 mi
- Riverside Municipal AirportRAL, 11 mi
- San Bernardino International AirportSBD, 21 mi
- March Air Reserve BaseRIV, 23 mi
- San Gabriel Valley AirportEMT, 25 mi