S
M
T
W
T
F
S
30
89°
67°
31
88°
62°
1
84°
61°
2
84°
61°
3
85°
62°
4
88°
65°
5
88°
65°
6
87°
64°
7
85°
62°
8
84°
60°
9
82°
58°
10
82°
58°
11
81°
57°
12
81°
57°
13
80°
58°
14
80°
57°
15
81°
58°
16
81°
58°
17
80°
61°
18
84°
62°
19
80°
59°
20
Hist. Avg.
82°
58°
21
Hist. Avg.
82°
57°
22
Hist. Avg.
82°
57°
23
Hist. Avg.
81°
56°
24
Hist. Avg.
81°
56°
25
Hist. Avg.
80°
56°
26
Hist. Avg.
80°
55°
27
Hist. Avg.
80°
55°
28
Hist. Avg.
79°
54°
29
Hist. Avg.
79°
54°
30
Hist. Avg.
79°
54°
1
Hist. Avg.
78°
53°
2
Hist. Avg.
78°
53°
3
Hist. Avg.
78°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Stevenson
Stevenson's September 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 57° and 67°. The average high for September is 84° 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 Stevenson. See also: October | November | December.
