S
M
T
W
T
F
S
26
67°
34°
27
73°
35°
28
65°
34°
29
57°
43°
30
46°
43°
1
58°
35°
2
44°
33°
3
53°
39°
4
64°
33°
5
75°
46°
6
63°
49°
7
62°
43°
8
56°
36°
9
60°
32°
10
66°
44°
11
60°
43°
12
57°
37°
13
56°
36°
14
65°
46°
15
61°
52°
16
76°
50°
17
78°
51°
18
67°
46°
19
89°
47°
20
86°
61°
21
65°
47°
22
69°
38°
23
N/A
24
56°
47°
25
62°
47°
26
80°
58°
27
84°
53°
28
70°
49°
29
64°
48°
30
62°
46°
31
67°
49°
1
68°
51°
2
67°
49°
3
68°
53°
4
73°
54°
5
72°
50°
6
67°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Somerville
Somerville's May 2026 forecast shows daily high temperatures ranging from 56° to 84°, with overnight lows between 46° and 58°. The average high for May is 69° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Somerville. See also: June | July | August.
