S
M
T
W
T
F
S
26
79°
63°
27
82°
61°
28
79°
64°
29
81°
64°
30
77°
66°
1
68°
54°
2
72°
50°
3
75°
45°
4
73°
48°
5
77°
52°
6
79°
70°
7
77°
64°
8
70°
64°
9
70°
64°
10
79°
63°
11
81°
64°
12
79°
66°
13
82°
63°
14
82°
59°
15
79°
52°
16
79°
57°
17
81°
59°
18
84°
64°
19
84°
70°
20
84°
68°
21
82°
70°
22
82°
68°
23
82°
66°
24
82°
72°
25
75°
70°
26
82°
70°
27
82°
72°
28
84°
72°
29
81°
72°
30
86°
73°
31
86°
74°
1
86°
72°
2
90°
68°
3
85°
66°
4
83°
62°
5
85°
70°
6
84°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Barnwell
Barnwell's May 2026 forecast shows daily high temperatures ranging from 83° to 90°, with overnight lows between 62° and 74°. The average high for May is 86° with an average low of 70°. 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 Barnwell. See also: June | July | August.
