S
M
T
W
T
F
S
26
63°
41°
27
72°
42°
28
67°
51°
29
56°
43°
30
48°
36°
1
42°
34°
2
42°
33°
3
59°
31°
4
72°
46°
5
68°
49°
6
53°
40°
7
53°
39°
8
55°
47°
9
65°
50°
10
58°
41°
11
53°
35°
12
54°
44°
13
59°
47°
14
65°
48°
15
68°
48°
16
63°
46°
17
64°
45°
18
63°
46°
19
68°
48°
20
63°
42°
21
64°
43°
22
63°
44°
23
64°
47°
24
65°
45°
25
66°
48°
26
66°
47°
27
67°
46°
28
68°
50°
29
68°
49°
30
73°
53°
31
75°
55°
1
74°
53°
2
70°
51°
3
74°
55°
4
77°
56°
5
77°
57°
6
76°
56°
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 53° to 77°, with overnight lows between 35° and 57°. The average high for May is 65° with an average low of 48°. 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.
