S
M
T
W
T
F
S
30
74°
53°
31
76°
51°
1
78°
50°
2
74°
55°
3
66°
59°
4
79°
60°
5
71°
56°
6
68°
53°
7
78°
56°
8
74°
42°
9
65°
59°
10
81°
52°
11
69°
48°
12
74°
52°
13
75°
55°
14
74°
52°
15
70°
51°
16
68°
50°
17
72°
47°
18
68°
46°
19
68°
48°
20
66°
45°
21
63°
48°
22
64°
50°
23
67°
49°
24
71°
48°
25
68°
49°
26
68°
44°
27
62°
42°
28
66°
44°
29
70°
47°
30
71°
47°
1
70°
48°
2
68°
47°
3
66°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pittsfield
Pittsfield's September 2026 forecast shows daily high temperatures ranging from 62° to 81°, with overnight lows between 42° and 59°. The average high for September is 69° 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 Pittsfield. See also: October | November | December.