S
M
T
W
T
F
S
30
91°
60°
31
84°
62°
1
87°
65°
2
84°
64°
3
86°
64°
4
87°
65°
5
89°
63°
6
87°
64°
7
87°
64°
8
86°
62°
9
86°
62°
10
84°
60°
11
86°
61°
12
88°
63°
13
88°
62°
14
87°
61°
15
Hist. Avg.
81°
58°
16
Hist. Avg.
81°
57°
17
Hist. Avg.
80°
57°
18
Hist. Avg.
80°
57°
19
Hist. Avg.
80°
56°
20
Hist. Avg.
79°
56°
21
Hist. Avg.
79°
55°
22
Hist. Avg.
79°
55°
23
Hist. Avg.
78°
55°
24
Hist. Avg.
78°
54°
25
Hist. Avg.
78°
54°
26
Hist. Avg.
77°
54°
27
Hist. Avg.
77°
53°
28
Hist. Avg.
76°
53°
29
Hist. Avg.
76°
52°
30
Hist. Avg.
76°
52°
1
Hist. Avg.
75°
52°
2
Hist. Avg.
75°
51°
3
Hist. Avg.
75°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Thayer
Thayer's September 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 60° and 65°. The average high for September is 87° with an average low of 63°. 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 Thayer. See also: October | November | December.
