S
M
T
W
T
F
S
28
93°
65°
29
91°
64°
30
93°
65°
1
92°
64°
2
91°
64°
3
86°
63°
4
85°
63°
5
86°
64°
6
95°
63°
7
95°
63°
8
91°
62°
9
92°
61°
10
93°
62°
11
91°
61°
12
87°
61°
13
88°
60°
14
91°
60°
15
92°
61°
16
93°
60°
17
93°
60°
18
91°
59°
19
90°
58°
20
91°
59°
21
90°
60°
22
90°
60°
23
89°
58°
24
89°
59°
25
88°
60°
26
91°
63°
27
92°
64°
28
92°
62°
29
93°
63°
30
91°
60°
31
87°
61°
1
85°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Marfa
Marfa's July 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 58° and 65°. The average high for July is 90° with an average low of 61°. 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 Marfa. See also: August | September | October.