S
M
T
W
T
F
S
27
40°
24°
28
41°
24°
29
36°
28°
30
39°
24°
31
41°
14°
1
37°
12°
2
30°
12°
3
33°
13°
4
36°
12°
5
38°
16°
6
37°
13°
7
35°
22°
8
37°
12°
9
34°
11°
10
31°
13°
11
31°
14°
12
37°
10°
13
35°
11°
14
33°
12°
15
34°
15°
16
39°
21°
17
42°
17°
18
38°
27°
19
39°
28°
20
43°
26°
21
42°
14°
22
39°
15°
23
40°
17°
24
40°
19°
25
41°
20°
26
42°
27°
27
44°
28°
28
Hist. Avg.
40°
19°
29
Hist. Avg.
40°
20°
30
Hist. Avg.
41°
20°
31
Hist. Avg.
41°
20°
1
Hist. Avg.
41°
20°
2
Hist. Avg.
42°
20°
3
Hist. Avg.
42°
21°
4
Hist. Avg.
42°
21°
5
Hist. Avg.
43°
21°
6
Hist. Avg.
43°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Grand Junction
Grand Junction's January 2027 forecast shows daily high temperatures ranging from 30° to 44°, with overnight lows between 10° and 28°. The average high for January is 38° with an average low of 18°. 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 Grand Junction. See also: February | March | April.