S
M
T
W
T
F
S
26
57°
41°
27
66°
40°
28
64°
41°
29
62°
44°
30
54°
46°
1
63°
46°
2
53°
46°
3
54°
43°
4
61°
43°
5
59°
49°
6
60°
52°
7
64°
48°
8
59°
45°
9
57°
46°
10
61°
51°
11
62°
43°
12
61°
43°
13
60°
46°
14
59°
50°
15
61°
46°
16
66°
46°
17
79°
56°
18
73°
59°
19
76°
58°
20
84°
61°
21
65°
52°
22
64°
51°
23
N/A
24
58°
55°
25
65°
54°
26
68°
58°
27
76°
58°
28
74°
53°
29
68°
50°
30
64°
50°
31
66°
51°
1
68°
53°
2
68°
54°
3
67°
57°
4
69°
56°
5
72°
54°
6
65°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Jamestown
Jamestown's May 2026 forecast shows daily high temperatures ranging from 58° to 76°, with overnight lows between 50° and 58°. The average high for May is 68° with an average low of 54°. 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.
