S
M
T
W
T
F
S
30
64°
50°
31
63°
49°
1
62°
52°
2
62°
50°
3
63°
48°
4
62°
47°
5
62°
49°
6
63°
48°
7
65°
51°
8
64°
53°
9
65°
52°
10
61°
53°
11
63°
52°
12
62°
52°
13
65°
52°
14
64°
51°
15
64°
51°
16
62°
49°
17
59°
49°
18
59°
47°
19
60°
45°
20
60°
46°
21
59°
45°
22
59°
47°
23
60°
46°
24
59°
48°
25
58°
50°
26
58°
50°
27
61°
47°
28
60°
46°
29
57°
45°
30
57°
45°
1
58°
44°
2
57°
44°
3
56°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Greenside
Greenside's September 2026 forecast shows daily high temperatures ranging from 56° to 65°, with overnight lows between 44° and 53°. The average high for September is 61° 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 Greenside. See also: October | November | December.
