S
M
T
W
T
F
S
26
80°
59°
27
80°
58°
28
78°
62°
29
82°
57°
30
73°
49°
1
66°
51°
2
64°
49°
3
69°
47°
4
71°
49°
5
75°
55°
6
74°
52°
7
77°
53°
8
79°
55°
9
78°
54°
10
75°
53°
11
76°
52°
12
82°
58°
13
83°
59°
14
83°
59°
15
76°
53°
16
74°
52°
17
75°
52°
18
76°
53°
19
78°
55°
20
80°
57°
21
83°
59°
22
84°
60°
23
84°
61°
24
85°
62°
25
85°
62°
26
84°
61°
27
83°
61°
28
81°
62°
29
80°
62°
30
80°
63°
31
82°
63°
1
80°
64°
2
81°
64°
3
81°
63°
4
82°
64°
5
82°
65°
6
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Newnan
Newnan's May 2026 forecast shows daily high temperatures ranging from 64° to 85°, with overnight lows between 47° and 65°. The average high for May is 79° with an average low of 57°. 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 Newnan. See also: June | July | August.