Frosty Mornings and Midnight Flurries: The Ides of March Bring a Chill to Boston

Sunday Overview: A Cool and Cloudy Transition

As the city enters the middle of March, the typical transition between winter and spring continues with a brisk and mostly cloudy Sunday. Residents of the Hub should prepare for a day defined by fluctuating cloud cover and a noticeable chill that persists from dawn until dusk. While the official start of spring is just around the corner, today's forecast for March 15, 2026, serves as a reminder that winter weather has not yet fully retreated from New England.

Morning: A Brisk and Clear Start

The day begins with a sharp bite in the air. Early morning temperatures are hovering around 31°F, but the real story is the wind chill. Due to moderate breezes, it currently "feels like" 23°F for those heading out for a morning coffee or an early run along the Esplanade. Fortunately, the early hours offer the best chance for visibility, with clear skies and only periodic clouds expected through the mid-morning. Humidity levels are starting high at approximately 76%, adding a damp quality to the cold air.

Afternoon: Peak Temperatures and Overcast Skies

As we move into the midday and afternoon hours, the mercury is predicted to climb to a modest high of 41°F. However, the early morning sunshine will likely give way to an increasingly overcast sky. Meteorological data indicates that the afternoon will be largely cloudy, with the chance of precipitation remaining low at just 10% during the daylight hours. While no significant rain or snow is expected during your afternoon errands, the lack of sun and the 57% humidity will make the 41-degree peak feel quite cool. If you are heading to the Public Garden or a matinee in the Theater District, a heavy coat and scarf are strongly recommended.

Evening and Overnight: Watching the Flurries

The primary weather concern for today arrives after sunset. As the temperature begins to drop toward an overnight low of 29°F, the atmosphere becomes more active. The probability of precipitation jumps to 40% late Sunday evening and into the overnight hours. Given the freezing temperatures, any moisture is expected to manifest as light snow showers or flurries rather than rain. While no major accumulation is currently forecast, the overnight snow risk could create localized slippery patches for the early Monday morning commute.

At-a-Glance Sunday Forecast

• Temperature Range: High of 41°F, Low of 29°F.
• Conditions: Clear morning skies transitioning to afternoon clouds.
• Precipitation: 10% chance during the day; 40% chance of snow at night.
• Wind Chill: Morning lows feeling like 23°F.
• Humidity: Averaging 57% throughout the afternoon.

Overall, Bostonians should plan for a dry but chilly Sunday afternoon followed by a watchful eye on the sky for late-night snow. Layers remain essential as the city navigates this classic March weather pattern.