S
M
T
W
T
F
S
28
72°
59°
29
70°
55°
30
69°
56°
1
70°
58°
2
70°
57°
3
71°
57°
4
71°
60°
5
70°
59°
6
70°
61°
7
71°
62°
8
71°
62°
9
72°
61°
10
72°
62°
11
73°
62°
12
72°
61°
13
72°
63°
14
73°
62°
15
72°
60°
16
72°
57°
17
73°
57°
18
72°
58°
19
72°
61°
20
76°
57°
21
77°
59°
22
77°
62°
23
76°
63°
24
80°
58°
25
77°
57°
26
74°
57°
27
74°
56°
28
75°
59°
29
74°
62°
30
74°
62°
31
78°
63°
1
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Thomaston
Thomaston's July 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 55° and 63°. The average high for July is 73° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Thomaston. See also: August | September | October.