San Francisco residents brace for a cold snap as National Weather Service (NWS) San Francisco cautions the return of chilling temperatures and potential frost across the Bay Area. A Freeze Warning and Frost Advisory have been issued for several parts of the region, active from 1 AM to 9 AM on Monday. Areas such as the interior Central Coast, Santa Clara Valley, and southern East Bay Hills/Mountains should anticipate subfreezing conditions that could pose risks to the homeless population, pets, and sensitive vegetation, as per the National Weather Service.

Moreover, a Freeze Watch is set to take effect early Tuesday morning until 9 AM Thursday, implicating most areas with temperatures ranging from the upper 20s to mid-30s. Conditions are expected to "cause hazardous conditions for unsheltered populations and those without access to adequate heating," the NWS San Francisco cautions. Residents should take necessary precautions to "protect people, pets, plants, and pipes." The weather service reminds us always to remember the Four P's of Winter Weather: People, Plants, Pets, and Pipes.

The skies are predicted to remain clear until midweek, giving way to a pattern change on Friday, according to the NWS forecast discussion. After managing through the cold, locals can soon expect to pull out their umbrellas, as rain is set to grace the region on Friday, continuing into the early part of next week. However, forecasters admit low confidence in the upcoming precipitation details, urging the public to stay tuned as updates unfold.

As San Francisco enjoys sunny conditions today with a high near 60, according to the National Weather Service, the change in weather will surely adapt quickly to varying conditions. Clear and calm conditions pervade for now, yet the "next round of unsettled weather returns Friday into next week with gusty conditions over the northern waters and widespread rain possible," per the NWS forecast discussion marine forecast.