S
M
T
W
T
F
S
29
64°
47°
30
69°
47°
1
68°
46°
2
68°
46°
3
65°
42°
4
55°
39°
5
61°
44°
6
64°
44°
7
63°
41°
8
56°
41°
9
54°
40°
10
53°
37°
11
53°
33°
12
52°
34°
13
54°
32°
14
54°
30°
15
52°
39°
16
56°
42°
17
66°
41°
18
62°
42°
19
61°
36°
20
61°
27°
21
58°
27°
22
50°
31°
23
52°
37°
24
64°
29°
25
65°
28°
26
51°
30°
27
51°
29°
28
50°
31°
29
51°
39°
30
55°
40°
31
65°
28°
1
65°
26°
2
51°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Gresham
Gresham's December 2026 forecast shows daily high temperatures ranging from 50° to 69°, with overnight lows between 24° and 47°. The average high for December is 58° with an average low of 36°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Gresham. See also: January | February | March.
