Morning Sun Gives Way to Nighttime Flurries as Winter Lingers in Boston

Morning: A Brisk and Bright Start

Bostonians waking up this Friday, March 13, 2026, will be greeted by a crisp, sunny start to the day. The morning air carries a sharp bite, with temperatures starting near 30°F and a wind chill that makes it feel closer to 20°F. Sunrise occurred at 7:06 AM, providing full sunshine for the early commute, though the ground remains frosted. Early morning conditions are expected to remain clear and dry, making it an ideal time for outdoor errands before the atmosphere shifts later in the day.

Afternoon: Clouds Roll into the Hub

As the city moves into the midday hours, the clear blue skies will begin to fade behind a thickening blanket of grey. By early afternoon, cloud cover is expected to reach 100%, marking the end of the morning’s brightness. Temperatures will peak at a high of approximately 42°F (6°C). While this is relatively typical for mid-March, a moderate breeze from the south-southwest at 15 mph (24 km/h) will keep the air feeling damp and chilly. Humidity levels will hover around 49% during the day, gradually rising as the evening approaches.

Evening and Night: A Wintery Mix Arrival

The most significant weather transition occurs after sunset, which is scheduled for 6:43 PM. As darkness falls, the risk of precipitation increases significantly. While the chance of snow is low during the afternoon, it jumps to 45% overnight. Forecasters are predicting a wintery mix of rain and snow to begin late Friday evening, with current projections suggesting an accumulation of roughly 0.31 inches by Saturday morning. Low temperatures will dip back down to 29°F (-2°C), creating potential for slick spots on secondary roads and sidewalks.

For those interested in the night sky before the clouds fully take over, a rare celestial display is visible in the western horizon. Brilliant Venus and high-standing Jupiter, along with the crescent moon, are expected to be visible in the early twilight hours if the cloud deck permits a brief window of clarity.

Today's Weather Outlook at a Glance

• High Temperature: 42°F (6°C)
• Low Temperature: 29°F (-2°C)
• Precipitation: 45% chance of rain/snow mix after 8:00 PM
• Wind: SSW at 15 mph, with occasional higher gusts
• Humidity: Average of 62% overnight
• Sunrise/Sunset: 7:06 AM / 6:43 PM

Commuters and residents are advised to keep warm layers and umbrellas nearby. While the day starts with the promise of spring sunlight, the evening's return to winter conditions will require extra caution on the roads.