S
M
T
W
T
F
S
30
69°
42°
31
82°
39°
1
76°
51°
2
69°
52°
3
62°
48°
4
64°
46°
5
70°
43°
6
65°
41°
7
65°
47°
8
70°
46°
9
79°
47°
10
78°
51°
11
70°
50°
12
77°
46°
13
56°
48°
14
63°
48°
15
65°
46°
16
76°
45°
17
67°
44°
18
74°
48°
19
77°
49°
20
80°
51°
21
83°
54°
22
72°
51°
23
71°
39°
24
79°
46°
25
58°
45°
26
58°
39°
27
62°
37°
28
N/A
29
68°
51°
30
67°
44°
1
70°
44°
2
72°
42°
3
75°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Moscow
Moscow's September 2026 forecast shows daily high temperatures ranging from 67° to 75°, with overnight lows between 39° and 51°. The average high for September is 70° with an average low of 44°. 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 Moscow. See also: October | November | December.