Alameda County issues Red Flag Warning for parts of Alameda County from Wednesday 06-10-2026 11pm until Thursday 06-11-2026 9am. Wildfires can start easily and spread rapidly. PREPARE a go bag in case of evacuations. AVOID outdoor activities that can cause sparks. STAY AWARE. NO EVACUATION is required at this time. Times and locations may change. For most updated info go to weather.gov/mtr
There is an elevated chance of fire weather in the middle of the week — Wednesday evening through Thursday, according to the National Weather Service.
Gusty offshore winds and extremely dry conditions mean fires may catch and spread more easily.
“Even though we’ve gotten some rain over the last month or so, vegetation is continuing to dry out in portions of the area, so they’ll be susceptible to burning,” said Lamont Bain, a National Weather Service meteorologist.
Concerns are highest for the North Bay interior mountains, especially in Napa County, where winds are strongest, with hot and dry conditions extending into the rest of the Bay Area.
Wednesday, daytime high temperatures will be mostly in the mid 70s on the coast, in the mid 70s to mid 80s around the Bay, and in the mid 90s inland. Thursday, daytime highs will be mostly in the low 80s on the coast, in the mid 80s to low 90s around the Bay, and in the high 90s inland. There is a moderate heat risk warning for Thursday. Low temperatures for both nights will mostly be in the low 60s.
The National Weather Service recommends people in the area be mindful of local burn bans. For safety, dispose of cigarettes and matches carefully and ensure campfires are completely extinguished when putting them out.
The Weather Service also encourages people in the area to avoid using anything that could create sparks, like lawn care or towing equipment, while conditions last.
“Anything that promotes the idea of one less spark, one less wildfire,” Bain said.
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