S
M
T
W
T
F
S
26
72°
53°
27
75°
38°
28
79°
38°
29
79°
50°
30
79°
51°
1
78°
51°
2
69°
48°
3
64°
41°
4
64°
39°
5
66°
40°
6
64°
40°
7
60°
37°
8
65°
37°
9
62°
41°
10
63°
40°
11
68°
40°
12
70°
40°
13
67°
44°
14
69°
47°
15
66°
49°
16
64°
49°
17
68°
48°
18
60°
42°
19
N/A
20
61°
39°
21
64°
37°
22
61°
42°
23
63°
43°
24
61°
45°
25
58°
38°
26
53°
37°
27
57°
37°
28
61°
36°
29
65°
40°
30
62°
41°
31
66°
46°
1
65°
43°
2
55°
40°
3
55°
42°
4
57°
43°
5
58°
39°
6
58°
42°
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 53° to 66°, with overnight lows between 36° and 46°. The average high for May is 60° with an average low of 41°. 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.
