Boston weather in March
Long-run climate averages for Boston, MA in March, plus what the forecast models say for the days ahead.
In March, Boston averages 44°F by day and 29°F at night. The wettest month is usually November.
March in Boston averages a daytime high of 44°F and an overnight low of 29°F, which reads as cool for this part of the world. Overnight temperatures drop below freezing, so expect frost and pack accordingly. Across the whole year Boston sees roughly 48 inches of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Boston forecast with every model compared and how much they currently agree.
Boston weather by month
what to expect in Boston through the year, 1991-2020 averagesHere is Boston's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Boston by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Boston, scoring 85/100 on our CheckWeather Score, ahead of the American at 84. See the full US accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Boston in March?
Is March a good time to visit Boston?
Does it rain a lot in Boston in March?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .