S
M
T
W
T
F
S
26
81°
62°
27
80°
59°
28
78°
57°
29
80°
55°
30
80°
56°
31
85°
59°
1
79°
53°
2
77°
52°
3
80°
53°
4
86°
56°
5
89°
55°
6
87°
55°
7
85°
55°
8
86°
56°
9
81°
55°
10
81°
54°
11
84°
57°
12
84°
58°
13
86°
57°
14
80°
51°
15
78°
52°
16
82°
52°
17
83°
54°
18
80°
53°
19
83°
55°
20
83°
55°
21
82°
52°
22
75°
49°
23
82°
51°
24
80°
52°
25
82°
56°
26
75°
52°
27
77°
52°
28
82°
55°
29
83°
56°
30
81°
56°
31
79°
55°
1
82°
56°
2
82°
56°
3
79°
54°
4
78°
51°
5
75°
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 75° to 89°, with overnight lows between 49° and 59°. The average high for August is 81° with an average low of 54°. 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.
