Weather at Ontario International Airport (ONT)

Ontario, California KONT #53 US airport by passengers

Official aviation observations and forecasts for ONT.

FAA status
No delays reported Updated 2 min ago
Weather now
VFR 64°F Observed 14 min ago
Late departures
23.0%May 2026 to July 2026
Security line
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Current conditions at ONT

VFR

64°F18°C

Good visibility and high cloud base. Normal operations are typical.

Wind
240° 5 mph
Visibility
8 mi
Clouds
FEW 1,900 ft, SCT 4,000 ft, BKN 7,500 ft
Ceiling
7,500 ft
Conditions
-RA
Pressure
29.63 inHg

METARMETAR KONT 111553Z 24004KT 8SM -RA FEW019 SCT040 BKN075 18/17 A2963 RMK AO2 SLP022 P0003 T01780167

TAFTAF KONT 111120Z 1112/1218 26008KT 5SM -SHRA BKN020 FM111600 25010G20KT P6SM VCSH BKN050 FM111900 24009KT P6SM BKN050

Source: NOAA Aviation Weather Center. Observed 14 min ago.

Forecast for the ONT area

Today69°F
Rain Showers
10 to 15 mph SW · 88% rain
Tonight57°F
Rain Showers Likely
5 to 10 mph SW · 73% rain
Columbus Day63°F
Rain Showers Likely
0 to 10 mph SW · 73% rain
Monday Night53°F
Chance Rain Showers
0 to 10 mph SW · 36% rain
Tuesday69°F
Sunny
0 to 5 mph S · 3% rain
Tuesday Night52°F
Clear
0 to 5 mph NW · 0% rain
Wednesday78°F
Sunny
0 to 5 mph E · 0% rain
Wednesday Night56°F
Clear
0 to 10 mph N · 0% rain

Source: National Weather Service. Updated just now.

Runways

RunwayLengthWidthSurface
08L/26R12,197 ft150 ftCON
08R/26L10,200 ft150 ftCON

Source: OurAirports (public domain). Runway data can lag behind construction closures.

Air traffic frequencies

ServiceDescriptionMHz
ATISATIS124.250
CLDCLNC DEL118.100
GNDGND121.900
TWRTWR120.600