Historical weather data, all-time temperature records, and monthly climate averages for Brookline, MA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Brookline is a true coin-flip kind of day — temperatures have swung from a balmy 78° in 2010 down to a bitter 22° in 1993. Expect something in between, with an average high of 55° and low of 35°. There's nearly a 1-in-2 chance of rain, and a lingering 8% shot at snow.
Brookline's weather has real range — from a scorching 103° on June 25, 2025, to a brutal -11° on February 4, 2023, all within living memory. The wettest single day on record dumped 7.15 inches in June 1998, and the Blizzard of '78 still holds the snow record at 22 inches.
Summer is the sweet spot, with highs peaking around 85-87° in mid-July before tapering into a pleasant fall. Winter bottoms out the third week of January, when average highs barely crack 35°. Rain is fairly consistent year-round, but August is statistically the wettest stretch of the year.