S
M
T
W
T
F
S
26
88°
66°
27
94°
70°
28
82°
63°
29
84°
63°
30
87°
66°
31
71°
61°
1
79°
58°
2
80°
57°
3
84°
62°
4
84°
60°
5
80°
60°
6
79°
61°
7
82°
63°
8
81°
59°
9
81°
60°
10
79°
60°
11
78°
58°
12
79°
62°
13
74°
57°
14
73°
54°
15
73°
58°
16
76°
61°
17
75°
58°
18
75°
56°
19
74°
57°
20
80°
59°
21
74°
54°
22
71°
53°
23
71°
52°
24
72°
52°
25
71°
51°
26
71°
54°
27
78°
59°
28
79°
59°
29
78°
60°
30
79°
60°
31
79°
59°
1
78°
58°
2
73°
51°
3
69°
51°
4
78°
59°
5
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Marshfield
Marshfield's August 2026 forecast shows daily high temperatures ranging from 69° to 87°, with overnight lows between 51° and 66°. 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 Marshfield. See also: September | October | November.
