S
M
T
W
T
F
S
29
34°
16°
30
34°
15°
1
33°
15°
2
30°
14°
3
32°
14°
4
33°
13°
5
32°
13°
6
26°
12°
7
27°
13°
8
30°
13°
9
32°
12°
10
32°
12°
11
18°
7°
12
22°
6°
13
25°
8°
14
26°
9°
15
31°
10°
16
33°
12°
17
28°
9°
18
32°
9°
19
29°
5°
20
27°
5°
21
22°
4°
22
21°
-5°
23
19°
-5°
24
14°
-2°
25
21°
2°
26
18°
3°
27
18°
-8°
28
17°
-10°
29
13°
-6°
30
15°
-4°
31
19°
-13°
1
15°
-13°
2
10°
-9°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Blackfalds
Blackfalds's December 2026 forecast shows daily high temperatures ranging from 10° to 34°, with overnight lows between -13° and 16°. The average high for December is 25° with an average low of 5°. 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 Blackfalds. See also: January | February | March.
