S
M
T
W
T
F
S
29
42°
30°
30
41°
31°
1
43°
33°
2
43°
38°
3
47°
39°
4
49°
38°
5
48°
32°
6
45°
31°
7
43°
33°
8
41°
34°
9
50°
35°
10
42°
34°
11
44°
30°
12
Hist. Avg.
45°
33°
13
Hist. Avg.
44°
33°
14
Hist. Avg.
44°
33°
15
Hist. Avg.
44°
33°
16
Hist. Avg.
44°
33°
17
Hist. Avg.
44°
33°
18
Hist. Avg.
44°
33°
19
Hist. Avg.
44°
33°
20
Hist. Avg.
44°
32°
21
Hist. Avg.
44°
32°
22
Hist. Avg.
44°
32°
23
Hist. Avg.
44°
32°
24
Hist. Avg.
44°
32°
25
Hist. Avg.
44°
32°
26
Hist. Avg.
44°
32°
27
Hist. Avg.
44°
32°
28
Hist. Avg.
44°
32°
29
Hist. Avg.
44°
32°
30
Hist. Avg.
44°
32°
31
Hist. Avg.
44°
32°
1
Hist. Avg.
44°
32°
2
Hist. Avg.
44°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Gresham
Gresham's December 2026 forecast shows daily high temperatures ranging from 41° to 50°, with overnight lows between 30° and 39°. The average high for December is 44° with an average low of 34°. 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.
