S
M
T
W
T
F
S
28
58°
49°
29
62°
53°
30
72°
45°
1
75°
49°
2
79°
53°
3
81°
52°
4
80°
52°
5
85°
57°
6
86°
59°
7
88°
59°
8
86°
49°
9
80°
51°
10
89°
55°
11
91°
56°
12
92°
57°
13
91°
57°
14
91°
56°
15
92°
56°
16
91°
55°
17
87°
55°
18
86°
54°
19
90°
56°
20
92°
56°
21
91°
57°
22
92°
55°
23
86°
56°
24
89°
56°
25
92°
55°
26
92°
57°
27
93°
56°
28
93°
57°
29
92°
56°
30
93°
57°
31
93°
57°
1
88°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Plains
Plains's July 2026 forecast shows daily high temperatures ranging from 58° to 93°, with overnight lows between 45° and 59°. The average high for July is 86° with an average low of 55°. 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 Plains. See also: August | September | October.