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

A Few Weather Hazards To Contend With This Weekend

A few weather hazards are expected across the Lower 48 this weekend. Locally heavy rain from showers and thunderstorms may result in flooding in Florida and heavy rain is also possible on Saturday in a few other locations. Critical fire weather conditions are possible in the Four Corners Region and central Rockies on Saturday. Severe storms may develop on Sunday in the northern High Plains. Read More >

Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906ft.

Overcast

63°F

17°C

Humidity 82%
Wind Speed WSW 12 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 30 Sep 12:05 AM PDT
Extended Forecast for

Ontario CA

  • Today

    Today: A chance of rain before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 65. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers

    High: 65 °F

  • Tonight

    Tonight: A chance of showers. Mostly cloudy, with a low around 56. West wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 56 °F

  • Sunday

    Sunday: A slight chance of showers. Partly sunny, with a high near 66. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

    Slight Chance
    Showers

    High: 66 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 54. West wind 5 to 10 mph.

    Partly Cloudy

    Low: 54 °F

  • Monday

    Monday: Sunny, with a high near 75. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    Sunny

    High: 75 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 56.

    Mostly Clear

    Low: 56 °F

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    Sunny

    High: 83 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 60.

    Mostly Clear

    Low: 60 °F

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    Sunny

    High: 91 °F

Detailed Forecast

Today
A chance of rain before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 65. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers. Mostly cloudy, with a low around 56. West wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A slight chance of showers. Partly sunny, with a high near 66. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 54. West wind 5 to 10 mph.
Monday
Sunny, with a high near 75. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 65.
Friday
Sunny, with a high near 92.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Ontario CA
 34.03°N 117.61°W (Elev. 823 ft)
Last Update:
2:36 am PDT Sep 30, 2023
Forecast Valid:
6am PDT Sep 30, 2023-6pm PDT Oct 6, 2023
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation