Ontario, California Weather
Issued: 2:24 am PST Dec 18, 2025 Latitude: 34.0633443 Longitude: -117.6508876 View on Google Maps
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Mostly Clear |
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Morning Fog |
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Current Conditions at
ONTARIO - (KONT)
52°
Partly Cloudy
Haze
as of 4:53 AM PST
Rel. Humidity: 76%
Dew Point: 45°F
Visibility: 6 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Cloud Level(s): Scattered at 30000ft
Current Conditions at
CHINO - (KCNO)
46°
Clear
Mist
as of 5:05 AM PST
Rel. Humidity: 93%
Dew Point: 45°F
Visibility: 3 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Cloud Level(s): Clear
Current Conditions at
RIVERSIDE - (KRAL)
52°
Clear
as of 4:53 AM PST
Rel. Humidity: 76%
Dew Point: 45°F
Visibility: 9 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
FULLERTON - (KFUL)
50°
Clear
Mist
as of 5:11 AM PST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 3 Miles
Pressure: 29.94 in.
Flight Rule: MVFR
Cloud Level(s): Clear
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Today... Sunny, with a high near 83. Northeast wind around 5 mph becoming calm. |
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Tonight... Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm after midnight. |
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Friday... Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon. |
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Friday Night... Mostly clear, with a low around 52. West wind around 5 mph becoming calm in the evening. |
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Saturday... Mostly sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon. |
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Saturday Night... Patchy fog after 4am. Otherwise, partly cloudy, with a low around 53. |
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Sunday... Patchy fog before 10am. Otherwise, partly sunny, with a high near 74. |
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Sunday Night... Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 53. |
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Monday... Patchy fog before 10am. Otherwise, partly sunny, with a high near 73. |
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Monday Night... Mostly cloudy, with a low around 52. |
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Tuesday... A chance of rain. Partly sunny, with a high near 69. |
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Tuesday Night... Rain likely. The rain could be heavy at times. Mostly cloudy, with a low around 54. |
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Wednesday... Rain. The rain could be heavy at times. Mostly cloudy, with a high near 65. |
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Current Radar Image
Sun Almanac for Ontario, California
Sunrise: 06:51 AM
Sunset: 4:44 PM
Civil Sunrise:06:23 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 05:52 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:21 AM
Astro Sunset: 6:14 PM
California's Current Temperatures
California's Satellite Image
California's Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 7253 locations
in the contiguous United States |
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High
Temp |
77° |
Lantana/Palm Bea, Florida
and 2 other locations
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Low
Temp |
-4° |
Crosby Municipal, North Dakota
and 1 other location
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Wind
Speed |
54mph |
Rapid City, South Dakota
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Wind
Gust |
83mph |
Rapid City, South Dakota
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Wind
Chill |
-32° |
Robertson Field, North Dakota
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High
Pressure |
30.75Hg |
Charlie, Montana
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Low
Pressure |
29.03Hg |
Orr, Minnesota
and 1 other location
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| # Locations Reporting Snow |
55 |
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| # Locations Reporting Rain |
162 |
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| # Locations Reporting Fog |
50 |
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| Average Temperature in the Contiguous USA |
42° |
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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.
