San Jose woke up under clear skies today, with temperatures sitting near 50 degrees at San Jose International Airport at 5:35 AM. That chilly start will not stick around. Inland spots are expected to jump into the upper 70s and low 80s this afternoon, with sunny skies holding through the weekend. Mornings stay cool, afternoons lean noticeably warm for late March.
Afternoon Heat and Weekend Outlook
Highs are forecast near 79 today, about 82 tomorrow and Saturday, and around 85 Sunday for the warmest valley and inland locations. Overnight lows will generally be in the upper 40s to low 50s, so early risers can still expect a brisk feel before the warmup kicks in.
The ridge is expected to break down early next week, with a return to onshore flow and a chance of rain from late Monday into midweek. Parts of the North Bay could see at least an inch of accumulation, according to the National Weather Service.
Gusty Ridge Winds Overnight
Forecasters say a trapped offshore flow around the region’s complex terrain could whip up strong gusts of up to 45 mph on higher North Bay peaks, such as Mt. St. Helena, before dawn tomorrow. Those stronger winds should stay mostly confined to exposed ridgelines and higher passes, while San Jose’s valley floors remain relatively light and breezy.
If you are driving near hill routes early tomorrow, be ready for sudden gusts on open stretches of road.
Coastal Advisories
Small Craft Advisories and Gale Warnings remain in effect for sections of the central coast and nearby outer waters through this morning and into tonight, with conditions expected to ease by Friday. Mariners and anyone planning coastal recreation should check the latest marine forecast before heading out.
What This Means Locally
This pattern is notable for being unseasonably warm rather than truly hazardous. It looks like a solid weekend for outdoor plans, as long as people remember to bring shade, sunscreen, and plenty of water for longer stretches of work or exercise.
