S
M
T
W
T
F
S
26
64°
30°
27
66°
32°
28
59°
32°
29
50°
43°
30
47°
43°
1
62°
38°
2
52°
44°
3
53°
38°
4
58°
46°
5
65°
47°
6
63°
49°
7
58°
47°
8
60°
39°
9
58°
41°
10
59°
42°
11
57°
41°
12
61°
43°
13
63°
42°
14
60°
44°
15
62°
45°
16
60°
44°
17
59°
41°
18
60°
48°
19
59°
48°
20
63°
48°
21
65°
50°
22
68°
47°
23
60°
48°
24
60°
48°
25
63°
47°
26
64°
46°
27
62°
46°
28
61°
48°
29
61°
50°
30
64°
51°
31
63°
48°
1
63°
45°
2
64°
45°
3
63°
46°
4
63°
47°
5
64°
46°
6
64°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Topsham
Topsham's May 2026 forecast shows daily high temperatures ranging from 47° to 68°, with overnight lows between 38° and 51°. The average high for May is 61° with an average low of 45°. 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 Topsham. See also: June | July | August.
