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