S
M
T
W
T
F
S
31
76°
44°
1
79°
52°
2
77°
48°
3
82°
48°
4
85°
53°
5
80°
63°
6
83°
60°
7
84°
54°
8
86°
70°
9
83°
69°
10
89°
71°
11
88°
63°
12
80°
61°
13
82°
61°
14
78°
55°
15
74°
54°
16
75°
56°
17
75°
57°
18
78°
58°
19
80°
59°
20
79°
59°
21
77°
58°
22
78°
63°
23
78°
61°
24
82°
64°
25
82°
64°
26
83°
65°
27
84°
61°
28
78°
61°
29
78°
60°
30
81°
64°
1
81°
64°
2
82°
62°
3
81°
64°
4
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Galesburg
Galesburg's June 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 54° and 71°. The average high for June is 80° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Galesburg. See also: July | August | September.
