S
M
T
W
T
F
S
30
100°
75°
31
101°
73°
1
100°
68°
2
100°
72°
3
99°
73°
4
98°
72°
5
101°
71°
6
100°
74°
7
95°
75°
8
100°
79°
9
90°
69°
10
85°
66°
11
89°
68°
12
87°
66°
13
92°
70°
14
80°
59°
15
75°
58°
16
79°
58°
17
81°
62°
18
78°
58°
19
79°
55°
20
78°
56°
21
83°
62°
22
82°
61°
23
82°
62°
24
83°
62°
25
81°
61°
26
79°
61°
27
80°
60°
28
81°
61°
29
78°
60°
30
76°
53°
1
71°
49°
2
66°
46°
3
65°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gardner
Gardner's September 2026 forecast shows daily high temperatures ranging from 65° to 100°, with overnight lows between 45° and 79°. The average high for September is 81° with an average low of 61°. 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 Gardner. See also: October | November | December.
