Diamond Bar, California Weather
Issued: 1:06 am PST Dec 18, 2025 Latitude: 34.0286226 Longitude: -117.8103367 View on Google Maps
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Current Conditions at
CHINO - (KCNO)
50°
Clear
Mist
as of 1:03 AM PST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 3 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Cloud Level(s): Clear
Current Conditions at
ONTARIO - (KONT)
55°
Clear
Haze
as of 12:53 AM PST
Rel. Humidity: 71%
Dew Point: 46°F
Visibility: 6 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
FULLERTON - (KFUL)
54°
Clear
Mist
as of 12:53 AM PST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 3 Miles
Pressure: 29.94 in.
Flight Rule: MVFR
Wind Data
3 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
LONG BEACH - (KLGB)
55°
Clear
Mist
as of 12:53 AM PST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 2 1/2 Miles
Pressure: 29.94 in.
Flight Rule: IFR
Cloud Level(s): Clear
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Overnight... Clear, with a low around 54. East northeast wind around 5 mph. |
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Thursday... Sunny, with a high near 81. East northeast wind around 5 mph becoming west in the afternoon. |
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Thursday Night... Mostly clear, with a low around 53. Southwest wind around 5 mph becoming east in the evening. |
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Friday... Sunny, with a high near 79. East northeast wind around 5 mph becoming southwest in the afternoon. |
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Friday Night... Mostly clear, with a low around 51. South southwest wind around 5 mph becoming calm. |
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Saturday... Mostly sunny, with a high near 71. |
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Saturday Night... Mostly cloudy, with a low around 52. |
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Sunday... Partly sunny, with a high near 72. |
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Sunday Night... Mostly cloudy, with a low around 52. |
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Monday... Partly sunny, with a high near 70. |
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Monday Night... Mostly cloudy, with a low around 51. |
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Tuesday... A chance of rain. Partly sunny, with a high near 67. |
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Tuesday Night... A chance of rain. Mostly cloudy, with a low around 54. |
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Wednesday... Rain. Cloudy, with a high near 61. |
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Current Radar Image
Sun Almanac for Diamond Bar, California
Sunrise: 06:52 AM
Sunset: 4:45 PM
Civil Sunrise:06:24 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 05:52 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:22 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 7021 locations
in the contiguous United States |
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High
Temp |
77° |
Keathley C 875, Louisiana
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Low
Temp |
1° |
Crosby Municipal, North Dakota
and 1 other location
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Wind
Speed |
66mph |
Buffalo, South Dakota
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Wind
Gust |
90mph |
Buffalo, South Dakota
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Wind
Chill |
-26° |
Crosby Municipal, North Dakota
and 1 other location
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High
Pressure |
30.30Hg |
Manhattan/Dwntwn, New York
and 3 other locations
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Low
Pressure |
29.00Hg |
Fosston, Minnesota
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| # Locations Reporting Snow |
32 |
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| # Locations Reporting Rain |
62 |
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| # Locations Reporting Fog |
31 |
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| Average Temperature in the Contiguous USA |
43° |
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National Weather Service for official information.
