Ontario, California Weather
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Weather Forecast for Ontario, California : San Bernardino County
Issued: 12:57 pm PDT Jul 5, 2025 Latitude: 34.0633443 Longitude: -117.6508876 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear on Tonight Sunny on Sunday Sunny on Monday Sunny on Tuesday Sunny on Wednesday Sunny on Thursday Sunny on Friday Sunny on Saturday
Low: 62°F High: 90°F High: 89°F High: 94°F High: 100°F High: 100°F High: 96°F High: 91°F
Low: 60°F Low: 62°F Low: 68°F Low: 69°F Low: 67°F Low: 65°F  
Clear Sunny Sunny Sunny Sunny Sunny Sunny Sunny
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Current Conditions at
ONTARIO - (KONT)
93°
Clear
as of 3:53 PM PDST
Rel. Humidity: 20%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 18 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
CHINO - (KCNO)
93°
Clear
as of 3:53 PM PDST
Rel. Humidity: 20%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
15 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
RIVERSIDE - (KRAL)
95°
Clear
as of 3:53 PM PDST
Rel. Humidity: 19%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 22 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
FULLERTON - (KFUL)
81°
Clear
as of 3:53 PM PDST
Rel. Humidity: 44%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
8 MPH
210° Southwest
Cloud Level(s): Clear
Clear on Tonight Tonight... Clear, with a low around 62. West wind 5 to 10 mph becoming light and variable after midnight.
Sunny on Sunday Sunday... Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Clear on Sunday Night Sunday Night... Clear, with a low around 60. Southwest wind 5 to 10 mph.
Sunny on Monday Monday... Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 62. Southwest wind 5 to 10 mph becoming light west after midnight.
Sunny on Tuesday Tuesday... Sunny, with a high near 94.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 68.
Sunny on Wednesday Wednesday... Sunny, with a high near 100.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 69.
Sunny on Thursday Thursday... Sunny, with a high near 100.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 67.
Sunny on Friday Friday... Sunny, with a high near 96.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 65.
Sunny on Saturday Saturday... Sunny, with a high near 91.
Current Radar Image


Sun Almanac for Ontario, California
Sunrise: 05:45 AM
Sunset: 8:06 PM
Civil Sunrise:05:16 AM
Civil Sunset: 8:35 PM
Nautical Sunrise: 04:41 AM
Nautical Sunset: 9:10 PM
Astro Sunrise: 04:02 AM
Astro Sunset: 9:49 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.