This page presents a long range weather forecast for Boston in May as well as other months. You can quickly get a brief overview of the weather to expect in May on a daily basis.
The Boston extended forecast data provided is based on the average values of previous years.
Long range weather forecast
Select a month and click on a day for more information:
Wednesday
May 1
12° / 7°
Thursday
May 2
16° / 7°
Friday
May 3
12° / 8°
Saturday
May 4
12° / 7°
Sunday
May 5
9° / 7°
Monday
May 6
21° / 8°
Tuesday
May 7
21° / 10°
Wednesday
May 8
15° / 9°
Thursday
May 9
9° / 8°
Friday
May 10
15° / 8°
Saturday
May 11
23° / 8°
Sunday
May 12
13° / 11°
Monday
May 13
19° / 9°
Tuesday
May 14
19° / 11°
Wednesday
May 15
22° / 11°
Thursday
May 16
23° / 12°
Friday
May 17
18° / 11°
Saturday
May 18
20° / 10°
Sunday
May 19
20° / 11°
Monday
May 20
22° / 13°
Tuesday
May 21
24° / 13°
Wednesday
May 22
24° / 14°
Thursday
May 23
21° / 12°
Friday
May 24
18° / 11°
Saturday
May 25
21° / 10°
Sunday
May 26
26° / 13°
Monday
May 27
25° / 15°
Tuesday
May 28
22° / 14°
Wednesday
May 29
20° / 12°
Thursday
May 30
22° / 12°
Friday
May 31
21° / 11°
Boston 30 days weather forecast
Check out our estimated 30 days weather forecast for Boston, this data is based on the average weather in Boston in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Boston next to the desired date.