S
M
T
W
T
F
S
30
88°
65°
31
85°
61°
1
84°
61°
2
84°
62°
3
85°
66°
4
86°
64°
5
89°
60°
6
81°
59°
7
82°
65°
8
85°
61°
9
82°
58°
10
82°
59°
11
84°
57°
12
80°
57°
13
78°
56°
14
79°
55°
15
80°
56°
16
81°
56°
17
84°
57°
18
85°
61°
19
85°
62°
20
Hist. Avg.
80°
58°
21
Hist. Avg.
80°
57°
22
Hist. Avg.
80°
57°
23
Hist. Avg.
79°
56°
24
Hist. Avg.
79°
56°
25
Hist. Avg.
78°
56°
26
Hist. Avg.
78°
55°
27
Hist. Avg.
78°
55°
28
Hist. Avg.
77°
54°
29
Hist. Avg.
77°
54°
30
Hist. Avg.
77°
54°
1
Hist. Avg.
76°
53°
2
Hist. Avg.
76°
53°
3
Hist. Avg.
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Galena
Galena's September 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 55° and 66°. The average high for September is 83° with an average low of 60°. 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.
