San Jose is starting today clear and cool at about 61 degrees, but the South Bay is headed for a swift warm-up and a high near 92. The sunny, rain-free pattern will stick around through the workweek, with tomorrow likely the hottest day at 94 before temperatures settle near 89 to 91 through Saturday.
Sunny Sunday, Hotter Monday
Today's temperatures should reach the upper 80s by early afternoon and peak around 91 to 92, with west-northwest winds building from a few miles per hour in the morning to around 10 mph late in the day. Skies stay clear tonight, with a low near 62, followed by another sunny day tomorrow and a low around 61 tomorrow night.
Dry Heat Brings Fire-Weather Concerns
The National Weather Service says moderate HeatRisk will affect inland parts of the region tomorrow, with some pockets lingering into next week. Its forecast discussion also flags near-critical fire-weather conditions across interior areas as hot temperatures, very low daytime humidity and afternoon winds create easier conditions for fires to start and spread. San Jose has no weather alerts posted in the supplied forecast, but residents should avoid activities that could create sparks, especially near dry grass or open space.
Clear South Bay Skies Through Saturday
Tuesday should reach about 90 degrees, followed by highs near 89 on Wednesday and Thursday, 90 on Friday, and 91 on Saturday. Overnight lows will generally stay in the low 60s, with mostly clear skies and no rain in sight. Coastal neighborhoods may begin some mornings with fog or low clouds before clearing, while San Jose remains warmer and sunnier inland.
Afternoon Winds Pick Up
Winds will be light early today before increasing from the northwest during the afternoon and evening, topping out around 10 mph. That breeze may take the edge off the heat, but it can also help dry vegetation and spread flames if a fire starts. For outdoor plans, the safest bet is an earlier start, plenty of water and extra care with anything that could produce heat or sparks.
