SGV Braces For Dangerous Heatwave: Diamond Bar

DIAMOND BAR, CA — The first heat wave of the summer will wash over the Southland this weekend, sending temperatures into triple-digit territory amid an elevated danger of wildfire.

The National Weather Service has issuing an excessive heat watch from Friday morning through Saturday evening, and Friday's temperatures are expected to break records in many cities and triple-digit temperatures sticking around Saturday before dropping around 10-12 degrees Sunday and into Monday.

The heat watch will be in effect along the Central Coast, in Ventura County, in Orange County and in all of L.A. County, including beach cities, metropolitan L.A., the Downtown area and the Hollywood Hills, all valley areas, and both the San Gabriel and Santa Monica mountains.

Residents were warned of excessive high heat watch Friday morning through Saturday Evening, with temperatures between 85 and 95, and over 100 in some areas.

An Excessive Heat Watch means that a prolonged period of heat will create a dangerous situation in which increased occurrences of heat illnesses are likely.

"The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are possible," the NWS said. "Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun and check up on relatives and neighbors."

Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.

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7-day Forecast for Diamond Bar-Walnut

No precipitation throughout the week, with high temperatures falling to 94°F next Thursday.

Friday July 6

Partly cloudy in the evening. High 113, low 75.
Chance of precipitation: 2%. Wind 2 mph from the NNW

Saturday July 7

Clear throughout the day. High 104, low 81.
Chance of precipitation: 4%. Wind 1 mph from the SW

Sunday July 8

Partly cloudy starting in the evening. High 97, low 76.
Chance of precipitation: 0%. Wind 4 mph from the SW

Monday July 9

Overcast throughout the day. High 96, low 75.
Chance of precipitation: 0%. Wind 3 mph from the SSW

Tuesday July 10

Mostly cloudy until evening. High 96, low 74.
Chance of precipitation: 3%. Wind 4 mph from the SW

Wednesday July 11

Partly cloudy starting in the afternoon. High 95, low 73.
Chance of precipitation: 3%. Wind 4 mph from the SW

Thursday July 12

Mostly cloudy throughout the day. High 94, low 73.
Chance of precipitation: 0%. Wind 4 mph from the SW
Data provided by darksky.net.