S
M
T
W
T
F
S
26
85°
55°
27
85°
56°
28
77°
54°
29
75°
49°
30
77°
49°
31
78°
51°
1
80°
54°
2
84°
54°
3
86°
57°
4
85°
50°
5
83°
50°
6
83°
51°
7
81°
56°
8
78°
49°
9
77°
47°
10
78°
49°
11
79°
48°
12
77°
49°
13
77°
48°
14
82°
52°
15
85°
50°
16
80°
49°
17
77°
55°
18
75°
49°
19
76°
48°
20
77°
52°
21
77°
51°
22
78°
57°
23
81°
54°
24
74°
48°
25
75°
52°
26
76°
53°
27
82°
55°
28
80°
56°
29
79°
57°
30
83°
56°
31
82°
52°
1
82°
53°
2
72°
53°
3
Hist. Avg.
79°
52°
4
Hist. Avg.
79°
51°
5
Hist. Avg.
79°
51°
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 72° to 86°, with overnight lows between 47° and 57°. The average high for August is 79° with an average low of 52°. 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.
