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Weather in Ontario, California, USA

Now
52 °F

Passing clouds.


Feels Like: 52 °F
Forecast: 73 / 50 °F
Wind: No wind

Location: Ontario International Airport
Current Time: Jan 21, 2026 at 3:40:03 am
Latest Report: Jan 21, 2026 at 2:53 am
Visibility: 10 mi
Pressure: 30.06 "Hg
Humidity: 66%
Dew Point: 41 °F
Location of OntarioLocation

Upcoming 5 hours

Now4:00 am5:00 am6:00 am7:00 am8:00 am
52 °F53 °F53 °F52 °F51 °F52 °F

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Forecast for the next 48 hours

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 WednesdayThursday
 NightMorningAfternoonEveningNightMorningAfternoon
Forecast
Temperature53 °F58 °F71 °F58 °F53 °F56 °F65 °F
Overcast.Overcast.Overcast.Overcast.Overcast.Overcast.Broken clouds.
Feels Like53 °F58 °F76 °F58 °F53 °F56 °F65 °F
Wind Speed1 mph1 mph2 mph3 mph2 mph4 mph4 mph
Wind DirectionN
ESE
SW
WSW
W
NNW
E
Humidity64%47%32%74%79%72%51%
Dew Point41 °F38 °F40 °F50 °F47 °F47 °F47 °F
Visibility8 mi8 mi7 mi7 mi7 mi6 mi8 mi
Probability of Precipitation0%0%0%0%0%0%2%
Amount of Rain0.00"0.00"0.00"0.00"0.00"0.00"0.00"
Amount of Snow0.00"0.00"0.00"0.00"0.00"0.00"0.00"
* Updated Tuesday, January 20, 2026 11:42:40 pm Ontario time - Weather by CustomWeather, © 2026

14 day forecast, day-by-dayHour-by-hour forecast for next week

Yesterday's weather

Partly sunny. 77 / 50 °F
Humidity: 42%. Wind: 2 mph from West

More weather last week

Currently at nearby stations

47 °F

Chino Airport: (6 mi)

Clear.

50 °F

Riverside Municipal Airport: (14 mi)

Clear.

55 °F

Fullerton Municipal Airport: (23 mi)

Fog.

More weather in USA

Forecast for the next 2 weeks

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SunMonTueWedThuFriSat
18
19
20

View historic weather

5
6
7

Detailed forecast for 14 days