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Bay Area Weather: Goodbye Warmth, Hello "June Gloom"

The Bay Area is bidding farewell to its recent warm, dry spell as a cooler pattern settles in just in time for Memorial Day. A shift in the atmosphere is ushering in cooler air from the Pacific, restoring the region’s signature gray skies and ocean breezes. Instead of high pressure locking in heat, a low-pressure system is moving in, displacing the lingering warm air and bringing a noticeable cooldown.

This transition means the marine layer—that cool, moist blanket hugging the coast—is thickening once again. By Friday morning, it had already ballooned to 1,000 to 1,500 feet deep, draping coastal areas in dense fog. Over the weekend, that fog is expected to push farther inland, casting a gloomy pallor over the region and making conditions feel more like early summer than late spring.

Cities like San Jose, typically warmer this time of year, will wake up to overcast skies, keeping temperatures subdued. But the cooling isn’t just about fog. The ocean air, currently hovering in the upper 50s, will surge inland, dragging down temperatures in areas that have been basking in recent warmth.

Weekend Forecast: Cooler, Grayer, and Wetter

• Oakland: Highs may struggle to reach the mid-60s by Monday.
• San Francisco: Sticking mostly in the 60s, with little sun in sight.
• San Jose: Hovering around 75°F, a far cry from its usual warmer trends.

Coastal areas will remain shrouded in persistent gloom, with minimal sunshine breaking through. Adding to the dreary atmosphere, light drizzle is possible Sunday and Monday, further cementing the shift toward a more muted, watery sky.

When Will It Warm Up?

The coolest stretch is projected to peak next Tuesday, but relief may be short-lived as temperatures are expected to climb again soon after. Locals might dismiss this as the annual transition from "May Gray" to "June Gloom"—a familiar reminder that summer in Northern California arrives on its own schedule.

For now, grab a jacket, embrace the fog, and prepare for a weekend where the Bay Area’s trademark gloom takes center stage.