Boston weather in July

Long-run climate averages for Boston, MA in July, plus what the forecast models say for the days ahead.

July at a glance

In July, Boston averages 84°F by day and 68°F at night. The wettest month is usually January.

July in Boston averages a daytime high of 84°F and an overnight low of 68°F, which reads as warm for this part of the world. It is the warmest month of the year here. Across the whole year Boston sees roughly 51 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

Here 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.

Jan

40°

27°

Cool

Wettest

Feb

42°

25°

Cool

Mar

47°

32°

Cool

Apr

57°

40°

Cool

May

68°

49°

Mild

Jun

77°

59°

Warm

Jul

84°

68°

Warm

Aug

79°

63°

Warm

Sep

73°

58°

Warm

Oct

64°

48°

Mild

Nov

51°

36°

Cool

Dec

43°

30°

Cool

Common questions

How warm is Boston in July?

Boston averages a daytime high of 84°F in July, with overnight lows around 68°F. These are long-run climate averages, not a forecast — for the actual days ahead see the live model comparison.

Is July a good time to visit Boston?

The most comfortable time to visit Boston is usually May, June, September and October, when daytime highs sit in the pleasant 60-78°F range and the heaviest January rain is behind you.

Does it rain a lot in Boston in July?

The wettest month in Boston is usually January. Across the year the city sees roughly 51 inches of precipitation.

Boston in other months

January February March April May June August September October November December

More about Boston

Boston live forecast Best time to visit Boston Which forecast is most accurate in United States?