Mist and Moonlight Rain: San Francisco’s Gray Sunday Forecast

A Somber Start to March

San Francisco residents waking up this Sunday, March 1, 2026, will find the city wrapped in a familiar gray embrace. As the lead editor for sanfrancisco.news, I’ve been tracking the transition from February’s late-winter patterns into the unpredictable shifts of early spring. Today’s forecast indicates a day characterized by heavy cloud cover and high humidity, acting as a precursor to a wet start for the coming work week.

Morning: Fog and Mist Across the Hills

The morning hours will see the city shrouded in a thick layer of overcast skies. Early commuters and dawn joggers should be prepared for patchy mist and reduced visibility, particularly in higher elevation neighborhoods like Twin Peaks and Forest Knolls. Temperatures are starting in the mid-50s, with a high level of humidity hovering around 96%. This dampness will make the air feel slightly cooler than the thermometer suggests. If you are heading out for a morning coffee or a stroll along the Embarcadero, a light, water-resistant jacket is highly recommended to combat the morning dampness.

Afternoon: Chilly Breezes and Persistent Clouds

As we move into the afternoon, the sun will remain largely hidden behind a stubborn cloud deck. While some inland areas of the Bay may see partial clearing, San Francisco is expected to remain overcast through the day. Temperatures will peak in the low 60s, with most forecasts pointing toward a high of 61°F to 64°F. Winds will remain consistent from the west-southwest at approximately 10 to 15 mph. While these are gentle breezes by San Francisco standards, the lack of direct sunlight will keep the afternoon feeling brisk. It is a perfect day for indoor activities or visiting one of our local museums before the rain arrives later tonight.

Evening and Late-Night: Preparing for the Rain

The real shift in today’s weather occurs after sunset. While the early evening will remain dry but cloudy, moisture levels will surge as a cutoff low-pressure system develops offshore. By midnight, the probability of rain increases significantly to about 75%. Residents should expect light rain and consistent showers to begin in the early hours of Monday morning.

• Temperature Range: A high of 64°F and a low of 53°F.
• Precipitation: Dry during daylight hours; light rain expected after midnight.
• Wind: West-southwest at 10-15 mph; no current wind advisories.
• Visibility: Mist likely in the morning and evening, reducing roadway visibility.

Currently, the National Weather Service has issued no active watches or warnings for the San Francisco Peninsula. However, with wetting rains possible overnight, Monday morning’s commute is likely to be slick. Make sure to secure any loose outdoor items this evening and keep your umbrellas close at hand for the Monday morning rush.