S
M
T
W
T
F
S
27
30°
17°
28
32°
16°
29
30°
8°
30
28°
10°
31
26°
0°
1
26°
-3°
2
17°
4°
3
17°
15°
4
27°
16°
5
30°
12°
6
31°
0°
7
29°
-2°
8
16°
-1°
9
14°
-1°
10
23°
-2°
11
15°
-5°
12
12°
-2°
13
11°
-6°
14
14°
-2°
15
13°
8°
16
18°
1°
17
21°
-2°
18
17°
-2°
19
16°
1°
20
17°
13°
21
24°
13°
22
27°
15°
23
30°
15°
24
29°
14°
25
29°
14°
26
28°
13°
27
29°
12°
28
28°
11°
29
28°
3°
30
24°
1°
31
Hist. Avg.
24°
6°
1
Hist. Avg.
25°
6°
2
Hist. Avg.
25°
7°
3
Hist. Avg.
25°
7°
4
Hist. Avg.
25°
7°
5
Hist. Avg.
25°
7°
6
Hist. Avg.
26°
8°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Duncan
Duncan's January 2027 forecast shows daily high temperatures ranging from 11° to 32°, with overnight lows between -6° and 17°. The average high for January is 23° 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 January weather will actually feel in Duncan. See also: February | March | April.