Your favorites:

Diamond Bar, CA Weather Forecast and Current Conditions (91765)

Current Conditions From Nearby Local Station  

Clear 66°F
Feels Like 66°F  
Humidity 75% Dew Point 58°F Wind SW 2 MPH Gusts 8 Barometer 29.96 in.761.0 mm
Solar Rad 0 w/m2
Report from a MADIS/MESONET station 1.2 miles ENE of central Diamond Bar
at

Current Conditions From Nearby Local Station  

Clear 66°F
Feels Like 66°F  
Humidity 75% Dew Point 58°F Wind SW 2 MPH Gusts 8 Barometer 29.96 in.761.0 mm
Solar Rad 0 w/m2
Report from a MADIS/MESONET station 1.2 miles ENE of central Diamond Bar
at

Point Forecast at a Glance

MonSep 29
Mon Sep 29: Partly Cloudy, Low 58°F
 
58°
TueSep 30
Tue Sep 30: Sunny, High 75°F, Low 56°F
75°
56°
WedOct 1
Wed Oct 1: Sunny, High 77°F, Low 57°F
77°
57°
ThuOct 2
Thu Oct 2: Sunny, High 78°F, Low 59°F
78°
59°
FriOct 3
Fri Oct 3: Sunny, High 76°F, Low 58°F
76°
58°
SatOct 4
Sat Oct 4: Sunny, High 77°F, Low 58°F
77°
58°
SunOct 5
Sun Oct 5: Sunny, High 74°F, Low 58°F
74°
58°


This Date in Weather History

1983 - Heavy rains began in central and eastern Arizona which culminated in the worst flood in the history of the state. Eight to ten inch rains across the area caused severe flooding in southeastern Arizona which resulted in thirteen deaths and 178 million dollars damage. President Reagan declared eight counties of Arizona to be disaster areas.

More on this and other weather history


Diamond Bar 7 Day Weather Forecast Details

Monday Sep 29

Partly Cloudy

Night: Partly cloudy, with a low around 58. West southwest wind 0 to 10 mph.

Tuesday Sep 30

Sunny

Day: Mostly sunny, with a high near 75. West southwest wind 0 to 10 mph.

Clear

Night: Mostly clear, with a low around 56. South southwest wind 0 to 10 mph.

Wednesday Oct 1

Sunny

Day: Sunny, with a high near 77. South southeast wind 0 to 10 mph.

Clear

Night: Clear, with a low around 57. North northeast wind 0 to 10 mph.

Thursday Oct 2

Sunny

Day: Sunny, with a high near 78.

Clear

Night: Clear, with a low around 59.

Friday Oct 3

Sunny

Day: Sunny, with a high near 76.

Clear

Night: Mostly clear, with a low around 58.

Saturday Oct 4

Sunny

Day: Sunny, with a high near 77.

Patchy Fog

Night: Patchy fog after 11pm. Partly cloudy, with a low around 58.

Sunday Oct 5

Sunny

Day: Patchy fog before 11am. Mostly sunny, with a high near 74.

Mostly Cloudy

Night: Mostly cloudy, with a low around 58.

Monday Oct 6

Sunny

Day: Partly sunny, with a high near 69.

Sun & Moon   Monthly

First Light 6:20 AM

Sunrise 6:45 AM

Sunset 6:39 PM

Last Light 7:04 PM

Moonrise 2:10 PM

Moonset 11:43 PM

Moon Phase

Data costs money. Servers cost money. Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker, contribute to WeatherForYou.com by buying me a coffee or subscribe to our ClearSky ad-free service.

Buy me a coffee

Weather Near Diamond Bar

Anaheim, CA

Griffith, CA

Pearblossom, CA


Contiguous United States Extremes

Mon's High Temperature
101 at 16 Miles Southwest Of Tecopa, CA

Mon's Low Temperature
23 at 32 Miles West-southwest Of Bynum, MT


Weather Folklore

When the glass falls low, prepare for a blow; When the glass is high, let your kites fly.


Ad Free Weather
Current subscribers - login to your ClearSky account

About Diamond Bar, California

Diamond Bar is a city in eastern Los Angeles County, California, United States. The 2020 census listed a population of 55,072. It is one of a few cities in California with a majority Asian population (59.24% as of 2020). It is named after the "diamond over a bar" branding iron registered in 1918 by ranch owner Frederic E. Lewis (1884–1963). The city features a public Los Angeles County golf course.

Located at the junction of the Pomona and Orange freeways, Diamond Bar is primarily residential with shopping centers interspersed throughout the city. It is surrounded by the cities of Brea, Walnut, Chino Hills, Pomona, City of Industry, and the unincorporated areas of Rowland Heights and South Diamond Bar.

Northern Diamond Bar is a part of the Pomona Unified School District. Southern Diamond Bar is a part of the Walnut Valley Unified School District. The city is also served by International Polytechnic High School. It also has the first hydrogen fueling station to be built in Southern California, near the South Coast Air Quality Management District building.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.