S
M
T
W
T
F
S
28
82°
62°
29
84°
62°
30
85°
57°
1
82°
53°
2
83°
57°
3
91°
63°
4
94°
62°
5
90°
63°
6
95°
70°
7
102°
62°
8
93°
69°
9
94°
62°
10
96°
70°
11
93°
65°
12
88°
60°
13
97°
68°
14
100°
72°
15
99°
69°
16
98°
69°
17
97°
72°
18
98°
72°
19
99°
74°
20
99°
71°
21
100°
72°
22
100°
73°
23
101°
71°
24
94°
67°
25
95°
73°
26
97°
73°
27
95°
73°
28
97°
73°
29
97°
72°
30
92°
67°
31
87°
64°
1
86°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mattawa
Mattawa's July 2026 forecast shows daily high temperatures ranging from 86° to 101°, with overnight lows between 60° and 74°. The average high for July is 96° 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 July weather will actually feel in Mattawa. See also: August | September | October.
