S
M
T
W
T
F
S
26
84°
69°
27
84°
63°
28
83°
63°
29
86°
66°
30
85°
65°
31
85°
65°
1
87°
69°
2
88°
65°
3
85°
64°
4
83°
62°
5
84°
63°
6
84°
64°
7
86°
63°
8
84°
63°
9
85°
67°
10
89°
68°
11
88°
68°
12
85°
67°
13
86°
68°
14
88°
68°
15
90°
63°
16
89°
62°
17
84°
61°
18
84°
67°
19
89°
61°
20
83°
60°
21
82°
60°
22
82°
65°
23
88°
64°
24
89°
65°
25
88°
66°
26
87°
62°
27
82°
59°
28
81°
59°
29
82°
64°
30
83°
63°
31
83°
64°
1
86°
64°
2
86°
63°
3
84°
64°
4
85°
63°
5
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Galena
Galena's August 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 59° and 69°. The average high for August is 85° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Galena. See also: September | October | November.
