S
M
T
W
T
F
S
30
77°
48°
31
80°
49°
1
82°
52°
2
81°
51°
3
77°
50°
4
73°
51°
5
78°
52°
6
81°
52°
7
81°
51°
8
80°
51°
9
80°
48°
10
76°
44°
11
73°
43°
12
73°
41°
13
72°
44°
14
71°
46°
15
74°
45°
16
77°
48°
17
75°
51°
18
78°
52°
19
69°
51°
20
69°
50°
21
76°
50°
22
77°
49°
23
74°
50°
24
74°
49°
25
76°
49°
26
76°
48°
27
75°
46°
28
70°
48°
29
68°
49°
30
72°
49°
1
75°
50°
2
77°
49°
3
76°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Colfax-Monumental Ridge
Colfax-Monumental Ridge's September 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 41° and 52°. The average high for September is 76° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Colfax-Monumental Ridge. See also: October | November | December.
