S
M
T
W
T
F
S
30
64°
45°
31
65°
51°
1
68°
53°
2
73°
48°
3
72°
42°
4
64°
47°
5
69°
43°
6
67°
43°
7
64°
41°
8
61°
39°
9
61°
45°
10
Hist. Avg.
68°
38°
11
Hist. Avg.
67°
38°
12
Hist. Avg.
67°
38°
13
Hist. Avg.
66°
37°
14
Hist. Avg.
66°
37°
15
Hist. Avg.
66°
37°
16
Hist. Avg.
65°
36°
17
Hist. Avg.
65°
36°
18
Hist. Avg.
64°
36°
19
Hist. Avg.
64°
35°
20
Hist. Avg.
64°
35°
21
Hist. Avg.
63°
35°
22
Hist. Avg.
63°
34°
23
Hist. Avg.
62°
34°
24
Hist. Avg.
62°
34°
25
Hist. Avg.
62°
33°
26
Hist. Avg.
61°
33°
27
Hist. Avg.
61°
33°
28
Hist. Avg.
60°
32°
29
Hist. Avg.
60°
32°
30
Hist. Avg.
59°
32°
1
Hist. Avg.
59°
31°
2
Hist. Avg.
59°
31°
3
Hist. Avg.
58°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Monitor
Monitor's September 2026 forecast shows daily high temperatures ranging from 61° to 73°, with overnight lows between 39° and 53°. The average high for September is 66° with an average low of 45°. 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 Monitor. See also: October | November | December.
