Diamond Bar-Walnut (91765) Daily Weather Forecast

Diamond Bar Library To Act As Cooling Center During Heatwave

Los Angeles County is under a heat advisory through the rest of the week as the area faces scorching temperatures.

Santa Ana Winds, Summer Weather Gusts Into Diamond Bar, Walnut

A Santa Ana wind event will blow through San Gabriel Valley through Thursday, with the strongest expected Tuesday and Wednesday, NWS says.

Storm To Bring Rain And Cooler Temps To Diamond Bar-Walnut

After a couple days of slightly warmer temperatures, a storm is expected to bring rain to the Southland.

Wind Advisories Continue: How Windy Was It In San Gabriel Valley

Much of San Gabriel Valley remained under a wind advisory through Friday. Wind gusts in the mountains reached these speeds.

San Gabriel Valley Forecast Calls For Rainy Christmas Week

It's frightful across the southland, but a slight break on Christmas Eve for last-minute shoppers! Rain will be delightful on Christmas day!

Thanksgiving Storm To Wreak Havoc In Diamond Bar

One to two inches of rain are expected along the coast and valleys and up to three inches in the mountains and foothills.

Flood Advisory In Diamond Bar

An urban and small stream flood advisory was released for much of southwestern California until 1:30 p.m.

San Gabriel Valley Air Quality To Be In Unhealthy Range Saturday

The South Coast Air Quality Management District says that air quality will be in the unhealthy range in the San Gabriel Valley on Saturday.

Smog Warning For Diamond Bar Residents Sensitive To Air Pollution

Air quality is in the good to unhealthy range in the South Coast Air Basin on Thursday, according to South Coast Air Quality Management.

Smog Alert: San Gabriel Valley Air Quality Close To Unhealthy

Air quality could be in the moderate to unhealthy range for sensitive groups in the San Gabriel Valley on Wednesday, the SCAQMD says.

Wind Advisory For San Gabriel Valley: Diamond Bar, Walnut

Expect gusting winds to continue into Saturday, the National Weather Service said.

Storm Batters Diamond Bar, Brings Warnings Of Possible Flooding

The heavy rain will create treacherous travel conditions, raising fears of widespread street flooding and debris flow throughout the county.

Rain, Winter Weather Continues: Forecast For Diamond Bar

A red sky to begin New Year's week turns to rain, cold and clouds across the Southland, according to the National Weather Service.

New Year's Day, Week Forecast For Diamond Bar

Expect cooler days, chilly nights through New Year's Day; Rain on Sunday, with high temperatures rising to 66°F on Friday.

Christmas Weather Forecast For Diamond Bar

What will your weather look like Christmas morning and Boxing Day? Patch has your happy holiday forecast!

Diamond Bar, Walnut Weather Still Delightful: Weekly Forecast

We've got your forecast all the way to Christmas Eve! No precipitation throughout the week, with high temps rising to 79°F on Thursday.

No Burn Alert In Diamond Bar, San Gabriel Valley

Partly cloudy conditions continue, slight warming trend for the area. A no-burn alert was in place across the county.

Rain Returns To Diamond Bar How Much And When

Rain on Wednesday, with high temperatures bottoming out at 58°F on Wednesday.

Rain & Cold Ahead For Diamond Bar; High Surf On Coast

Rain tomorrow through Saturday, with high temperatures falling to 60°F on Thursday. High surf advisories for the LA and OC Coastal areas.

Weekend Weather Forecast For Diamond Bar, Walnut

Here is your holiday weekend forecast! with high temperatures rising to 79°F on Tuesday.

Thanksgiving, Black Friday Forecast For Diamond Bar, Walnut

Light rain on Thanksgiving Day, here is your holiday weekend forecast! with high temperatures rising to 79°F on Tuesday.

Air Quality Report For Diamond Bar: No Burn Alert In Effect

San Gabriel Valey air quality hovers at moderate to unhealthy for sensitive groups levels, while the state sees record poor air after fires.

Smoky Skies, Air Quality Report For Walnut, Diamond Bar

"It is difficult to tell where ash or soot from a fire will go or how winds will affect the level of dust particles in the air" experts say.

Diamond Bar No Burn Alert Extended; Weather Warm Up Coming

The weather is warming up, and a no-burn was in effect through late Tuesday night, for LA, Orange County and the South Coast Air Basin.

Warm Dry Weather Continues In Diamond Bar-Walnut

No precipitation throughout the week, with high temperatures peaking at 87°F on Saturday.

Weather In Diamond Bar Warms Up For Halloween Week

Warm enough for you? Now that Halloween is in the 7-day forecast, SGV weather is heating up. Here's what to expect through Nov. 1.

Diamond Bar Winds Return, Fire Threat Grows This Weekend

Heavy wind gusts and dry vegetation will make for extreme fire danger across the LA region.

High Surf Advisory For Beaches, Weekend Rain Likely: Diamond Bar

Strong rip currents and big waves continue to batter the Los Angeles coastline. Rain may be on the way.

Weather Forecast For Diamond Bar-Walnut This Week

No precipitation throughout the week, with high temperatures rising to 94°F on Thursday.

Week Ahead Forecast For Diamond Bar-Walnut

Today, clear throughout the day. It's going to be a fantastic warm and beautiful week in SoCal!

Weather In Diamond Bar, Walnut; Check Out That SoCal Sky

Your weather, air quality and UV Index report for the week. Patch wants pics! Send your sunrise photos over Facebook for Photo Of The Week!

Week Ahead Weather Forecast For Diamond Bar-Walnut

Your week ahead weather in San Gabriel Valley. Here's what to expect when you're out and about. Today, partly cloudy tomorrow morning.

Your Weekend Weather Forecast For Diamond Bar-Walnut

See how high temps will go, plus check out a few fun events coming up nearby for you and your family ...

Week Ahead Weather Forecast For Diamond Bar-Walnut

Today, clear throughout the day.

Excessive Heat Warnings Continue: Diamond Bar, Walnut

That pressure cooker of heat continues to bake San Gabriel Valley this week. Just how hot will it get? and when will it cool down?

Week Ahead Forecast For Diamond Bar-Walnut

No precipitation throughout the week, with high temperatures bottoming out at 89°F on Sunday.

Coastal Flooding, Mountain Thunderstorms This Week: Diamond Bar

Batten down the hatches and grab the surfboards, as coastal flooding and thunderstorms are expected across the southland. Plan ahead!

SGV Braces For Dangerous Heatwave: Diamond Bar

A heatwave is coming and with it, excessive heat warnings across the Southland. Here is what to expect near you.

Heatwave, Coastal Hazards 4th Of July Week: Diamond Bar

Waves upwards of 8 feet maximum are expected this week across LA & OC County beaches, thanks to Tropical Storm Fabio along with heat inland.

Air Quality Report For San Gabriel Valley: Diamond Bar, Walnut

The South Coast Air Quality Management District reports for the San Gabriel Valley are in. Here is your air quality report for Wednesday.