San Francisco Shakes Off the Morning Fog for a Mild Monday

Morning: Coffee with a Side of Fog

Residents waking up in San Francisco this Monday morning, January 19, 2026, are being greeted by a familiar gray blanket. The National Weather Service has noted that patchy dense fog is common across the Bay Area today, particularly in the lower-lying neighborhoods and near the coast. Early morning temperatures are hovering around a cool 50°F to 53°F, with high humidity levels reaching 78%.

Commuters should exercise caution on the roads, as visibility may be significantly reduced during the early hours. However, this damp start is expected to be short-lived. As the morning progresses, the fog is forecast to burn off, giving way to clearer skies and a pleasant start to the work week.

Afternoon: Sunbreaks and Mild Highs

By midday, the city is expected to transition into a partly cloudy afternoon. Meteorologists predict that the mercury will climb to a comfortable high of 61°F. This peak temperature is slightly above the January average, providing a mild and dry window for outdoor lunches or a stroll along the Embarcadero. The winds remain light and manageable, coming in from the north-northeast at roughly 4 to 6 mph.

While the sun will make several appearances throughout the afternoon, the city’s microclimates will still be in play. Neighborhoods closer to the Pacific may experience more persistent cloud cover and slightly cooler temperatures than the sunnier Mission District or downtown areas. The chance of precipitation during the daylight hours remains very low, sitting at approximately 5%.

Evening: Clouds Return and a Slight Chill

As the sun sets on this Monday evening, San Franciscans can expect clouds to move back in from the coast. The sky will transition to mostly cloudy, and temperatures will begin their descent back toward a low of 50°F. While the majority of the day remains dry, there is a slight increase in the chance of light rain or drizzle late tonight, with local forecasts placing the probability at 20%.

Humidity will rise again overnight, which may lead to the return of fog by Tuesday morning. For now, there are no active wind or rain warnings in effect for the San Francisco peninsula, making it a relatively calm and classic winter day for the city. Residents are encouraged to dress in layers to stay comfortable as the conditions shift from the foggy morning to the mild afternoon.

• High Temperature: 61°F
• Low Temperature: 50°F
• Wind Speed: 4–6 mph
• Rain Probability: 5% (Day) / 20% (Night)