National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.

Clear

46°F

8°C

Humidity 45%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 11 Jan 01:53 AM PST
Extended Forecast for

Ontario CA

Wind Advisory January 11, 02:03am until January 12, 02:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory January 11, 02:03am until January 12, 02:00pm

    NOW until 2:00pm Mon

    Wind Advisory

  • Overnight

    Low: 50 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 73. Northeast wind around 5 mph becoming northwest in the morning.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. North wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 51. Calm wind becoming northwest around 5 mph after midnight.

    Low: 51 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 50. Calm wind.
Sunday
Sunny, with a high near 73. Northeast wind around 5 mph becoming northwest in the morning.
Sunday Night
Mostly clear, with a low around 52. North wind around 5 mph.
Monday
Sunny, with a high near 74. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Clear, with a low around 51. Calm wind becoming northwest around 5 mph after midnight.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Clear, with a low around 52.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Clear, with a low around 52.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 52.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 52.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario CA
 34.03°N 117.58°W (Elev. 853 ft)
Last Update:
1:43 am PST Jan 11, 2026
Forecast Valid:
2am PST Jan 11, 2026-6pm PST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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