S
M
T
W
T
F
S
26
82°
56°
27
85°
55°
28
60°
49°
29
63°
43°
30
66°
40°
1
65°
43°
2
64°
41°
3
80°
44°
4
81°
63°
5
65°
46°
6
62°
43°
7
68°
41°
8
78°
54°
9
81°
52°
10
70°
44°
11
78°
41°
12
79°
51°
13
78°
56°
14
81°
66°
15
87°
70°
16
84°
68°
17
86°
71°
18
86°
64°
19
70°
56°
20
73°
55°
21
76°
57°
22
77°
58°
23
77°
58°
24
80°
63°
25
84°
64°
26
81°
59°
27
82°
64°
28
83°
63°
29
84°
64°
30
80°
62°
31
77°
64°
1
76°
63°
2
77°
64°
3
80°
66°
4
85°
66°
5
85°
67°
6
82°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Galena
Galena's May 2026 forecast shows daily high temperatures ranging from 70° to 87°, with overnight lows between 55° and 71°. The average high for May is 81° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Galena. See also: June | July | August.
