San Jose is waking up to partly cloudy skies and a cool start Tuesday, but the South Bay is headed for a sunny afternoon near 74 degrees. The brief taste of fall will give way to a sharp warmup, with temperatures reaching the upper 80s by Friday.
Sunny Tuesday Gives Way To A Fast Warmup
Tuesday afternoon should stay dry and bright, with west-northwest winds ranging from 2 to 10 mph and gusts reaching 20 mph. Temperatures are expected to range from the 40s to low 50s Tuesday and Wednesday mornings, before Wednesday climbs to about 78.
Thursday is forecast to reach around 84 degrees, followed by the warmest day of the stretch Friday, when San Jose could reach 89. Those highs are warmer than the cooler pattern described in Hoodline’s earlier forecast. Dry conditions are expected Sunday.
Dry Winds Raise Fire Concerns In Higher Terrain
Dry conditions and strengthening offshore winds are expected in higher elevations around Wednesday night into Thursday.
San Jose’s neighborhood forecast is less windy, but the combination of dry vegetation, warm temperatures and stronger winds in the hills means outdoor flames and sparks should be handled carefully. Conditions are expected to remain especially dry through late week, when fire spread could become easier in elevated terrain.
Heat Exposure Can Vary Across San Jose
A NASA report on San José found that the urban heat-island effect is concentrated in highly developed areas, indicating that heat exposure can vary within the city. The finding points to development intensity as a factor, but does not identify specific neighborhoods as the most exposed.
Weekend Cooling Arrives Before Possible Early-Week Rain
Saturday should bring highs in the 80s across the interior, followed by highs in the 60s to 70s Sunday. Monday brings highs in the 60s to 70s, with possible light rain early next week.
Coastal flooding is possible during high tides through midweek in parts of the broader Bay Area. Sneaker waves and large breaking waves are also among the coastal hazards.
