Historical weather data, all-time temperature records, and monthly climate averages for Brighton, MA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Brighton lands right in that classic New England shoulder season — expect a high around 54° and a low near 35°, with a 41% chance of rain and a small but real 8% chance of snow. The date has seen everything from a balmy 77° back in 2010 to a brutal 17° in 1995, so dress in layers and don't trust the calendar.
Brighton's weather has real teeth on both ends — the thermometer has swung from a scorching 103° in June 2025 all the way down to -11° in February 2023, a 114-degree spread. A single June storm in 1998 dropped 7.15 inches of rain, and the Blizzard of '78 buried the area under 22 inches of snow in one day.
Summer is the sweet spot, with mid-July highs averaging 87° and the warmest stretch running July 16–22. Winter bottoms out the third week of January at a frigid average high of just 35°. If you're trying to dodge the rain, note that early August is statistically the wettest week of the year, averaging over an inch of precipitation.