S
M
T
W
T
F
S
30
81°
49°
31
80°
49°
1
83°
48°
2
75°
48°
3
78°
47°
4
82°
46°
5
83°
47°
6
84°
48°
7
84°
48°
8
83°
45°
9
83°
48°
10
80°
46°
11
73°
43°
12
72°
43°
13
70°
36°
14
69°
35°
15
69°
35°
16
74°
39°
17
80°
46°
18
69°
44°
19
68°
39°
20
69°
39°
21
69°
37°
22
68°
35°
23
68°
36°
24
72°
37°
25
74°
43°
26
75°
38°
27
66°
28°
28
63°
30°
29
62°
28°
30
60°
31°
1
63°
35°
2
68°
36°
3
68°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Moscow
Moscow's September 2026 forecast shows daily high temperatures ranging from 60° to 84°, with overnight lows between 28° and 49°. The average high for September is 73° with an average low of 40°. 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.