S
M
T
W
T
F
S
27
72°
42°
28
67°
47°
29
71°
48°
30
72°
47°
1
69°
46°
2
74°
50°
3
74°
46°
4
68°
47°
5
64°
40°
6
63°
46°
7
63°
42°
8
64°
47°
9
60°
41°
10
62°
41°
11
64°
46°
12
64°
41°
13
67°
44°
14
60°
41°
15
59°
47°
16
59°
44°
17
58°
47°
18
57°
46°
19
59°
44°
20
60°
43°
21
65°
39°
22
57°
37°
23
55°
36°
24
56°
41°
25
58°
37°
26
56°
35°
27
Hist. Avg.
59°
42°
28
Hist. Avg.
59°
42°
29
Hist. Avg.
59°
42°
30
Hist. Avg.
58°
41°
31
Hist. Avg.
58°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Gresham
Gresham's October 2026 forecast shows daily high temperatures ranging from 55° to 74°, with overnight lows between 35° and 50°. The average high for October is 63° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Gresham. See also: November | December | January.