S
M
T
W
T
F
S
29
24°
12°
30
23°
11°
1
24°
20°
2
28°
23°
3
32°
22°
4
28°
22°
5
26°
21°
6
27°
22°
7
27°
21°
8
28°
19°
9
26°
19°
10
29°
18°
11
28°
12°
12
31°
9°
13
28°
14°
14
31°
21°
15
28°
16°
16
29°
12°
17
26°
20°
18
27°
22°
19
32°
21°
20
31°
20°
21
32°
20°
22
28°
22°
23
30°
15°
24
31°
21°
25
28°
13°
26
32°
1°
27
28°
0°
28
14°
12°
29
19°
7°
30
23°
14°
31
20°
19°
1
32°
21°
2
33°
15°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Olney
Olney's December 2026 forecast shows daily high temperatures ranging from 14° to 33°, with overnight lows between 0° and 23°. The average high for December is 28° with an average low of 16°. 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 Olney. See also: January | February | March.
