S
M
T
W
T
F
S
31
79°
51°
1
79°
51°
2
79°
53°
3
68°
47°
4
62°
42°
5
59°
49°
6
62°
47°
7
64°
42°
8
73°
44°
9
77°
55°
10
70°
60°
11
70°
53°
12
79°
51°
13
81°
59°
14
83°
62°
15
85°
57°
16
85°
56°
17
88°
63°
18
80°
65°
19
75°
61°
20
69°
62°
21
77°
60°
22
74°
62°
23
74°
59°
24
73°
55°
25
78°
53°
26
71°
50°
27
82°
47°
28
77°
42°
29
84°
45°
30
80°
56°
1
76°
53°
2
81°
53°
3
86°
61°
4
88°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gresham
Gresham's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Gresham. See also: October | November | December.
