S
M
T
W
T
F
S
26
74°
54°
27
72°
57°
28
72°
57°
29
75°
59°
30
80°
58°
31
81°
60°
1
80°
61°
2
81°
59°
3
79°
59°
4
78°
58°
5
75°
58°
6
72°
59°
7
80°
59°
8
76°
59°
9
71°
56°
10
78°
53°
11
79°
53°
12
Hist. Avg.
81°
55°
13
Hist. Avg.
81°
55°
14
Hist. Avg.
81°
55°
15
Hist. Avg.
81°
55°
16
Hist. Avg.
81°
55°
17
Hist. Avg.
81°
54°
18
Hist. Avg.
80°
54°
19
Hist. Avg.
80°
54°
20
Hist. Avg.
80°
54°
21
Hist. Avg.
80°
54°
22
Hist. Avg.
80°
54°
23
Hist. Avg.
80°
54°
24
Hist. Avg.
80°
53°
25
Hist. Avg.
79°
53°
26
Hist. Avg.
79°
53°
27
Hist. Avg.
79°
53°
28
Hist. Avg.
79°
53°
29
Hist. Avg.
79°
52°
30
Hist. Avg.
78°
52°
31
Hist. Avg.
78°
52°
1
Hist. Avg.
78°
52°
2
Hist. Avg.
78°
51°
3
Hist. Avg.
78°
51°
4
Hist. Avg.
77°
51°
5
Hist. Avg.
77°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Gilsum
Gilsum's August 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 53° and 61°. The average high for August is 77° with an average low of 58°. 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 Gilsum. See also: September | October | November.