Bay Area/ San Jose

San Jose Sizzles as Sunny Skies Stoke Weekend Heat, Fire Fears

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Published on August 05, 2026
San Jose Sizzles as Sunny Skies Stoke Weekend Heat, Fire FearsSource: Ben Loomis, CC BY 2.0, via Wikimedia Commons

San Jose is starting today clear and around 61 degrees, but the easygoing morning is the front end of a hotter stretch. Skies stay sunny through the afternoon, with temperatures climbing to about 88 degrees before the weekend turns noticeably warmer.

Rain is not in the forecast, and winds should remain light today at roughly 1 to 8 mph from the south before shifting northwest later. The National Weather Service expects another mostly sunny day tomorrow, with a high near 88.

Weekend Heat Builds Quickly

Friday brings the first clear jump, with a high near 92, followed by a Saturday peak around 95. Overnight lows will range from the upper 50s tonight to the mid-60s Saturday night, offering only limited relief as the warm spell settles in.

Next Sunday should remain sunny and warm near 93 before temperatures ease to about 87 next Monday and 84 next Tuesday. The forecast stays dry through Tuesday, with no rain expected anywhere in the outlook.

Dry Hills Raise Fire Concerns

For residents heading into the foothills, the bigger concern is fire weather rather than rain. The weather service says dry fuels, low daytime humidity and afternoon breezes will keep fire danger elevated to near critical across parts of the region, including the Diablo and Santa Lucia ranges.

Anyone using a grill or campfire near dry vegetation should be especially careful, while drivers towing should make sure chains are secured to prevent sparks. No watches or warnings are posted for San Jose, but the combination of heat, dryness and breezy afternoons is a good reason to avoid activities that could ignite brush.