S
M
T
W
T
F
S
26
62°
35°
27
66°
43°
28
62°
47°
29
50°
36°
30
48°
31°
1
46°
29°
2
43°
30°
3
56°
30°
4
71°
44°
5
60°
43°
6
48°
32°
7
50°
33°
8
53°
39°
9
61°
38°
10
50°
33°
11
49°
33°
12
50°
39°
13
55°
42°
14
58°
43°
15
62°
43°
16
59°
44°
17
61°
44°
18
60°
43°
19
64°
44°
20
57°
38°
21
58°
37°
22
58°
38°
23
59°
41°
24
61°
41°
25
64°
43°
26
63°
43°
27
60°
41°
28
65°
45°
29
65°
46°
30
69°
49°
31
71°
50°
1
71°
47°
2
66°
48°
3
69°
50°
4
72°
52°
5
72°
52°
6
71°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Jamestown
Jamestown's May 2026 forecast shows daily high temperatures ranging from 48° to 72°, with overnight lows between 32° and 52°. The average high for May is 61° with an average low of 43°. 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 Jamestown. See also: June | July | August.
