As of Saturday, April 25, 2026, the current temperature in Boston, MA, is approximately 50°F (10°C). The sky remains mostly cloudy, and due to a light breeze from the east, the real-feel temperature is slightly cooler at 46°F (8°C).

For residents and visitors planning their day, the humidity is hovering between 39% and 53%, providing a relatively crisp spring atmosphere. The high for today is expected to stay capped at 51°F, while the overnight low will dip to around 42°F.

What is the hourly weather forecast for Boston today?

Throughout the afternoon and evening of April 25, Boston will experience consistent cloud cover. The temperature will remain steady near the 50°F mark until sunset, which is scheduled for 7:37 PM.

  • Afternoon (1:00 PM - 5:00 PM): Temperatures will peak at 51°F with overcast skies. Winds will be coming from the east at 10 to 15 mph, which might make waterfront areas like Seaport feel significantly chillier.
  • Evening (6:00 PM - 10:00 PM): A gradual decrease to 48°F. Cloud cover will persist at nearly 90%, though the chance of precipitation remains low at under 5%.
  • Late Night: The mercury will drop to its daily low of 42°F. Winds will shift slightly toward the south-southwest at 5 to 10 mph.

Will it rain in Boston this weekend?

The weather outlook for the remainder of the weekend shows a slight warming trend but continued cloudiness.

On Sunday, April 26, the high is projected to reach 56°F (13°C), a noticeable improvement from Saturday. While the morning may start with dense cloud cover, no significant rainfall is expected during the daylight hours. The chance of precipitation remains a negligible 3%. However, looking ahead to the following week, residents should prepare for scattered showers starting Friday, May 1, as a low-pressure system moves through the New England region.

Understanding Boston's seasonal temperature fluctuations

Spring in Boston is notoriously unpredictable, often described by locals as a "battle" between the warming continent and the cold Atlantic Ocean. While late April typically sees average highs in the upper 50s, the "sea breeze" effect can keep temperatures in Downtown and East Boston up to 10 degrees cooler than inland suburbs like Waltham or Newton.

In contrast to the mild spring, Boston's summer temperatures have seen a rising trend. According to the city's climate data, the number of days exceeding 90°F is increasing. During heatwaves, the urban landscape creates significant temperature variations between neighborhoods.

Why is it hotter in some Boston neighborhoods than others?

The City of Boston’s Heat Resilience research highlights a phenomenon known as the Urban Heat Island effect. On extreme heat days, the air temperature can vary by over 10°F depending on where you are in the city.

  • High-Risk Areas: Neighborhoods like Chinatown and parts of Dorchester often reach higher temperatures (sometimes exceeding 105°F during heatwaves) due to limited vegetation, dense building structures, and vast paved surfaces that absorb heat.
  • Cooler Zones: Areas with significant green space or water proximity, such as West Roxbury or the corridors near Jamaica Pond, tend to stay cooler. Franklin Park, for instance, often remains several degrees below the city median during peak heat events.

Practical tips for managing Boston's changing weather

  1. Layering is Key: Given the 10-15 degree fluctuation between day and night in April, wearing layers is essential for comfort.
  2. Hydration: Even on cloudy 50°F days, the humidity levels can fluctuate. Staying hydrated is important, especially if walking the Freedom Trail or visiting outdoor markets.
  3. Check the "Feels Like" Temp: Always prioritize the "feels like" or "wind chill" factor over the raw number, especially when near the Charles River or the Harbor.

Summary

Boston is currently experiencing a typical cool, cloudy spring day with temperatures near 50°F. While Saturday remains overcast and brisk, Sunday offers a slight temperature increase to 56°F. No immediate rain is in the forecast for the weekend, making it suitable for outdoor errands, provided you are dressed for the cool breeze.

FAQ

What is the average temperature in Boston in April? The typical high in April is around 56°F (13°C), with average lows near 41°F (5°C). Current conditions are slightly below the historical average for this time of the month.

When is the warmest part of the day in Boston? Usually, peak temperatures occur between 2:00 PM and 4:00 PM. However, on days with heavy cloud cover or strong sea breezes, the temperature may remain flat throughout the afternoon.

Where can I find cooling centers in Boston during summer? During official heat emergencies, the city opens BCYF (Boston Centers for Youth & Families) cooling centers. Major hotspots like Chinatown and Dorchester are prioritized for heat mitigation.