Issued at 957 AM PDT Tue May 5 2026
We're seeing pockets of light rain move south through the Bay Area into the Central Coast on the backside of an upper level disturbance that provided beneficial rainfall across much of the North Bay yesterday and last night. Locations that see rainfall will receive up to a few hundredths at most by early this afternoon. Cloud cover will continue to linger through sunset across most of our area. High temperatures will be in the upper 50s to low 60s, with mid/upper 60s farther inland.
, Issued at 1218 AM PDT Tue May 5 2026 (today and tonight)
Rain totals over the North Bay have so far varied from 0.10" to as much as 0.50". Steady light to moderate rain will continue to move southward across the rest of the Bay Area through morning, likely affecting the morning commute with wet roads. A few areas of light drizzle and/or light rain may reach the north Central Coast. Isolated instability did produce a couple thunderstorms Monday evening. One thunderstorm developed over the coastal waters southwest of Point Arena and another over far northern Napa County. The 500 mb low pressure system is beginning to pick up speed and will move eastward while caught up in the subtropical jet stream. The rain diminishes later in the morning with drier conditions returning, however it may take some time for the Sun to break through the clouds later today. Highs today are forecast to reach the 60s.
Cloudy with patchy fog tonight with temperatures lowering to the 50s and 40s.
..issued at 1218 AM PDT Tue May 5 2026 (Wednesday through Monday)
There's good global model agreement that a high pressure system will move in across the forecast area during this timeframe. Expect dry weather along with a warming trend from mid to late week and the weekend. Compressional warming aloft and surface warming will result in above to well above normal high temperatures by late in the week and weekend. Far inland locations will reach the 80s and 90s. Moderate HeatRisk likely develops over inland locations by Sunday. Please stay tuned to the latest updates.
(18z TAFS) Issued at 1020 AM PDT Tue May 5 2026
A mix of MVFR and low-end VFR ceilings are being observed across the terminals, expected to continue through the early afternoon hours before ceilings lift and scatter. Gentle to moderate onshore winds will develop through the afternoon and evening before becoming light overnight. Extensive MVFR stratus is expected overnight owing to the deep marine layer and recent rainfall, especially in the North Bay. Stratus begins to clear out towards the end of the 24-hour TAF period, but clearing times are expected right at the end of the TAF period or shortly thereafter.
Vicinity of SFO, MVFR ceilings continue for several more hours before the ceilings scatter out in the late afternoon and evening. Breezy west winds will persist through the afternoon and evening hours before becoming gentle overnight, as MVFR ceilings return to the terminal. Skies will clear out early Wednesday afternoon as breezy onshore winds resume.
SFO Bridge Approach, Similar to SFO.
Monterey Bay Terminals, VFR with mid- to high-level clouds persists today as gentle northwest winds develop in the afternoon and evening. MVFR ceilings develop in the evening and persist overnight as winds become light, with moderate confidence of some scattering out within the last hour of the TAF period.
(today through Sunday) Issued at 957 AM PDT Tue May 5 2026
The gradient between high pressure over the Eastern Pacific and lower pressure over the western United States will support a gentle northwest breeze and moderate seas through Wednesday. This gradient will gradually tighten from Thursday through Saturday, causing winds to increase to a strong breeze and building rough seas for the weekend.
Ca, None. PZ, None.
