S
M
T
W
T
F
S
29
39°
10°
30
37°
7°
1
26°
8°
2
22°
8°
3
23°
16°
4
25°
17°
5
29°
17°
6
31°
21°
7
34°
21°
8
35°
19°
9
34°
18°
10
33°
17°
11
33°
15°
12
29°
11°
13
27°
3°
14
23°
8°
15
20°
18°
16
31°
18°
17
32°
18°
18
Hist. Avg.
25°
8°
19
Hist. Avg.
25°
8°
20
Hist. Avg.
25°
7°
21
Hist. Avg.
24°
7°
22
Hist. Avg.
24°
6°
23
Hist. Avg.
24°
6°
24
Hist. Avg.
24°
6°
25
Hist. Avg.
23°
5°
26
Hist. Avg.
23°
5°
27
Hist. Avg.
23°
5°
28
Hist. Avg.
22°
4°
29
Hist. Avg.
22°
4°
30
Hist. Avg.
22°
4°
31
Hist. Avg.
22°
4°
1
Hist. Avg.
22°
3°
2
Hist. Avg.
22°
3°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Grasston
Grasston's December 2026 forecast shows daily high temperatures ranging from 20° to 39°, with overnight lows between 3° and 21°. The average high for December is 30° with an average low of 14°. 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 Grasston. See also: January | February | March.
