S
M
T
W
T
F
S
26
96°
75°
27
95°
73°
28
86°
71°
29
86°
68°
30
83°
63°
31
78°
63°
1
78°
62°
2
82°
62°
3
83°
62°
4
78°
64°
5
70°
63°
6
82°
64°
7
85°
66°
8
83°
60°
9
84°
64°
10
90°
69°
11
90°
71°
12
84°
71°
13
80°
69°
14
76°
68°
15
83°
71°
16
82°
64°
17
82°
60°
18
85°
63°
19
84°
64°
20
83°
58°
21
86°
65°
22
81°
60°
23
78°
54°
24
80°
53°
25
81°
57°
26
83°
62°
27
82°
58°
28
83°
53°
29
79°
64°
30
82°
71°
31
90°
71°
1
93°
69°
2
92°
71°
3
91°
70°
4
91°
69°
5
90°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Shellsburg
Shellsburg's August 2026 forecast shows daily high temperatures ranging from 90° to 93°, with overnight lows between 69° and 71°. The average high for August is 91° with an average low of 70°. 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 Shellsburg. See also: September | October | November.
