Severe Storms & Heavy Rainfall Possible in the Plains; Critical Fire Weather Conditions for Parts of the West

Scattered severe thunderstorms and locally heavy rainfall are possible across portions of the Plains through Monday. Meanwhile, dry weather and gusty winds will result in critical fire weather conditions across the Great Basin and northern Rockies. Elsewhere, tropical storm Dorian in the Atlantic is expected to slowly strengthen and will likely approach the Lesser Antilles by Tuesday. Read More >

Current conditions at

Ontario International Airport (KONT)

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

Partly Cloudy

74°F

23°C

Humidity 40%
Wind Speed calm
Barometer 29.91 in (1010.7 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 26 Aug 1:53 am PDT
Extended Forecast for

Ontario CA

  • Overnight

    Overnight: Partly cloudy, with a low around 68. Calm wind.

    Partly Cloudy

    Low: 68 °F

  • Monday

    Monday: Mostly sunny, with a high near 97. Light west wind increasing to 5 to 10 mph in the afternoon.

    Mostly Sunny

    High: 97 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 68. West wind 5 to 10 mph becoming light and variable  in the evening.

    Mostly Clear

    Low: 68 °F

  • Tuesday

    Tuesday: Sunny, with a high near 96. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    Sunny

    High: 96 °F

  • Tuesday
    Night

    Tuesday Night: Clear, with a low around 66. West wind 5 to 10 mph becoming light  in the evening.

    Clear

    Low: 66 °F

  • Wednesday

    Wednesday: Sunny, with a high near 95.

    Sunny

    High: 95 °F

  • Wednesday
    Night

    Wednesday Night: Clear, with a low around 66.

    Clear

    Low: 66 °F

  • Thursday

    Thursday: Sunny, with a high near 98.

    Sunny

    High: 98 °F

  • Thursday
    Night

    Thursday Night: Clear, with a low around 66.

    Clear

    Low: 66 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 68. Calm wind.
Monday
Mostly sunny, with a high near 97. Light west wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. West wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
Sunny, with a high near 96. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Clear, with a low around 66. West wind 5 to 10 mph becoming light in the evening.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Clear, with a low around 66.
Thursday
Sunny, with a high near 98.
Thursday Night
Clear, with a low around 66.
Friday
Sunny, with a high near 97.
Friday Night
Clear, with a low around 65.
Saturday
Sunny, with a high near 96.
Saturday Night
Clear, with a low around 65.
Sunday
Sunny, with a high near 97.
Click Map For Forecast
Point Forecast:
Ontario CA
 34.05°N 117.64°W (Elev. 919 ft)
7:36 pm PDT Aug 25, 2019
2am PDT Aug 26, 2019-6pm PDT Sep 1, 2019
 
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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