S
M
T
W
T
F
S
26
80°
51°
27
83°
60°
28
66°
53°
29
65°
48°
30
64°
41°
1
60°
45°
2
58°
43°
3
70°
41°
4
76°
55°
5
68°
43°
6
58°
44°
7
65°
39°
8
73°
49°
9
79°
54°
10
71°
55°
11
77°
44°
12
79°
51°
13
76°
52°
14
72°
45°
15
81°
54°
16
80°
70°
17
88°
67°
18
81°
63°
19
81°
63°
20
67°
55°
21
66°
54°
22
68°
59°
23
71°
62°
24
76°
59°
25
81°
54°
26
N/A
27
81°
65°
28
83°
66°
29
76°
60°
30
79°
60°
31
78°
56°
1
79°
57°
2
82°
58°
3
79°
59°
4
80°
60°
5
85°
64°
6
87°
67°
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 76° to 87°, with overnight lows between 56° and 67°. The average high for May is 81° with an average low of 61°. 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.
