S
M
T
W
T
F
S
26
91°
70°
27
91°
70°
28
90°
69°
29
91°
70°
30
90°
70°
31
91°
69°
1
92°
71°
2
91°
70°
3
90°
70°
4
91°
69°
5
91°
69°
6
90°
68°
7
88°
68°
8
89°
67°
9
88°
66°
10
85°
69°
11
89°
68°
12
91°
65°
13
90°
66°
14
88°
68°
15
91°
63°
16
91°
58°
17
81°
56°
18
80°
54°
19
77°
55°
20
79°
55°
21
79°
56°
22
78°
56°
23
77°
58°
24
80°
60°
25
84°
60°
26
84°
54°
27
77°
54°
28
79°
55°
29
82°
62°
30
86°
61°
31
88°
53°
1
85°
53°
2
77°
60°
3
80°
61°
4
87°
56°
5
87°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Gresham
Gresham's August 2026 forecast shows daily high temperatures ranging from 77° to 92°, with overnight lows between 50° and 71°. The average high for August is 86° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Gresham. See also: September | October | November.
