S
M
T
W
T
F
S
30
60°
41°
31
63°
33°
1
57°
32°
2
59°
38°
3
62°
42°
4
62°
40°
5
59°
36°
6
61°
33°
7
56°
33°
8
55°
38°
9
58°
36°
10
54°
32°
11
55°
36°
12
55°
37°
13
58°
38°
14
57°
39°
15
54°
36°
16
55°
30°
17
50°
29°
18
46°
26°
19
45°
33°
20
46°
34°
21
48°
29°
22
45°
28°
23
51°
32°
24
48°
33°
25
Hist. Avg.
47°
26°
26
Hist. Avg.
46°
26°
27
Hist. Avg.
46°
25°
28
Hist. Avg.
45°
25°
29
Hist. Avg.
44°
24°
30
Hist. Avg.
43°
24°
1
Hist. Avg.
43°
24°
2
Hist. Avg.
42°
23°
3
Hist. Avg.
41°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Dawson
Dawson's September 2026 forecast shows daily high temperatures ranging from 45° to 63°, with overnight lows between 26° and 42°. The average high for September is 55° with an average low of 34°. 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 Dawson. See also: October | November | December.