S
M
T
W
T
F
S
30
64°
47°
31
63°
46°
1
63°
46°
2
62°
45°
3
62°
44°
4
61°
43°
5
60°
43°
6
61°
42°
7
61°
44°
8
57°
43°
9
56°
44°
10
56°
44°
11
54°
43°
12
56°
41°
13
56°
43°
14
55°
42°
15
58°
41°
16
57°
41°
17
53°
40°
18
51°
40°
19
49°
37°
20
45°
37°
21
45°
30°
22
44°
30°
23
43°
29°
24
42°
28°
25
40°
27°
26
41°
30°
27
39°
32°
28
40°
28°
29
40°
25°
30
39°
24°
1
36°
23°
2
34°
24°
3
34°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Galena
Galena's September 2026 forecast shows daily high temperatures ranging from 34° to 64°, with overnight lows between 23° and 47°. The average high for September is 51° with an average low of 37°. 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 Galena. See also: October | November | December.
