textproduct: San Francisco Bay Area

KEY MESSAGES

Updated at 1235 AM PDT Sun Jun 7 2026

- Cooler temperatures persist through Tuesday

- Slight chance for coastal drizzle/light rain late Monday into early Tuesday

- Warmer and drier conditions return mid to late week

UPDATE

Issued at 935 AM PDT Sun Jun 7 2026

Clear, sunny skies will continue through the remainder of the day with temperatures reaching the mid 70s to low 80s across the interior. Gusty afternoon and evening winds are expected with gusts largely between 20-30 mph along the coast, higher terrain, and mountain gaps/passes. Rain chances have decreased quite a bit across the North Bay with drizzle really only expected across coastal northern Sonoma County now. Otherwise, the forecast remains on track.

SHORT TERM

Issued at 1235 AM PDT Sun Jun 7 2026 (Today and tonight)

Generally clear conditions prevail across the region with some stratus development visible on the western San Mateo Peninsula, the northern edge of the Santa Lucias near Monterey Bay, the Gabilan Range east of Salinas, and the Berkeley-San Leandro Hills. Stratus development through the night will be confined to the Monterey Bay and potentially the Morgan Hill-Hollister area, as strong mixing in the boundary layer disrupts radiational stratus formation.

Troughing dominates the weather pattern across the West Coast with an upper level low pressure system moving through the Pacific Northwest, leading to temperatures cooler than the seasonal averages. Today's high temperatures will hover in the middle 70s to lower 80s in the inland valleys, up to the middle to upper 80s in the warmest spots of eastern Contra Costa County and southern Monterey County, the middle 60s to the middle 70s near San Francisco Bay and the Santa Cruz coastal plain, and the upper 50s to middle 60s along the Pacific Coast and the southern side of Monterey Bay. Breezy winds are expected to develop in the afternoon and evening hours, but by that time the upper low should be moving into the northern Rockies and the Canadian Prairies, slackening the pressure gradient. This should result in the wind gusts not being as strong as they were yesterday. Wind gusts should top out around 20-30 mph along the coast and the Salinas Valley, with locally stronger gusts through gaps and passes and near favored coastal areas.

LONG TERM

Issued at 1235 AM PDT Sun Jun 7 2026 (Monday through Saturday)

A second low pressure system will reinforce the troughing pattern on Monday, leading to a slight dip in the temperatures as highs in the inland valleys dip into the 70s. As the second low moves through the Pacific Northwest, it will drag along a stream of moisture late Monday into early Tuesday. Model output shows precipitable water values of around 1" to 1.3", over twice the seasonal average this time of year. Any rain will be very light with the highest accumulations lying across the North Bay coastal ranges. Even there, the trend for progressively drier totals continues as the current forecast limits accumulations to less than a tenth of an inch, and even a higher end ensemble forecast limits the totals to less than a quarter of an inch in the Sonoma Coastal Ranges, and less than a tenth of an inch elsewhere within the Bay Area. However, as we sprint headfirst into the climatological dry season, any rainfall is beneficial.

By the later part of Tuesday into Wednesday, that second low pressure system will move into the Northern Rockies, and ensemble model output is converging on a ridge beginning to come into the West Coast, allowing inland highs to rebound to the 90s and the coasts to rise to the 60s and 70s for the middle and later parts of the week. These temperatures are raising the prospect of a moderate risk for heat-related illnesses, especially for sensitive populations including children, the elderly, pregnant women, and people who work or live outdoors. Gusty northerly winds are possible on Wednesday and Thursday across the interior regions, especially the North Bay interior mountains, as the trough digs into the Rockies. Ensemble model cluster analysis continues to differ on how deep that upper level trough will go, and any fire weather impacts from rainfall look to be minimal, if indeed there is any rainfall at all.

AVIATION

(12Z TAFS) Issued at 405 AM PDT Sun Jun 7 2026

VFR conditions are expected to prevail through the forecast period except for Monterey Bay terminals where MVFR cigs are expected to develop later tonight into early Monday morning. Gusty onshore flow will develop this afternoon and also persist into late tonight with winds remaining breezy through the TAF period.

Vicinity of SFO...VFR is expected to prevail through the TAF period with gusty onshore flow once again this afternoon through the late evening hours, remaining breezy through the overnight into early Monday.

SFO Bridge Approach...Similar to SFO but lighter west winds.

Monterey Bay Terminals...Expect VFR conditions soon after sunrise with pockets of low stratus in vicinity of the terminal. Breezy onshore flow this afternoon with moderate to high confidence that MVFR cigs will develop after sunset tonight and persist through the remainder of the forecast period into Tuesday morning.

MARINE

(Today through Friday) Issued at 935 AM PDT Sun Jun 7 2026

Moderate northwesterly winds and seas will continue through today then gradually ease tonight into Monday before building once again midweek.

MTR WATCHES/WARNINGS/ADVISORIES

CA...None. PZ...Small Craft Advisory until 3 AM PDT Monday for Mry Bay.

Gale Warning until 9 PM PDT this evening for Pt Arena to Pt Reyes 0-10 nm.

Small Craft Advisory until 3 PM PDT Monday for Pigeon Pt to Pt Pinos 0-10 nm-Pigeon Pt to Pt Pinos 10-60 NM-Pt Arena to Pt Reyes 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.