Bay Area/ San Jose/ Weather & Environment

Surprise San Jose Showers Hit as South Bay Braces for Fire Weather, Sunny Weekend Reset

AI Assisted Icon
Published on August 28, 2026
Surprise San Jose Showers Hit as South Bay Braces for Fire Weather, Sunny Weekend ResetSource: Valentin Müller on Unsplash

San Jose woke up today under cloudy skies near 64 degrees, with a small chance of showers hanging over the valley. The forecast calls for a high near 79 before a cooler, sunnier weekend takes over.

Showers Could Pop Before Evening

Mostly cloudy conditions should give way to partly sunny skies, but showers remain possible before 5 PM, with a 30% chance of precipitation. The National Weather Service also says isolated thunderstorms are possible across the South Bay and Monterey Bay area through the afternoon.

Nearby Fire Weather Needs Attention

A Red Flag Warning remains in effect through 3 PM today for the Santa Cruz Mountains and Central Coast, though it does not cover the Santa Clara Valley forecast zone. The concern is dry lightning, which can spark fires even when little rain reaches the ground.

Saturday Brings The Reset

Tomorrow and next Sunday look sunny, with highs around 78 degrees and overnight lows dropping into the mid-50s. Tomorrow will also bring west-northwest winds with gusts as high as 20 mph, a notable change from the warmer setup described in yesterday's forecast.

Fog Returns Before Midweek Sun

Next Monday cools to about 74 degrees, while next Tuesday and Wednesday stay in the mid-70s with mostly sunny afternoons. Patchy fog is expected during the early morning hours next Tuesday and Wednesday, with another fog chance before 8 AM next Thursday as temperatures rebound toward 78.