S
M
T
W
T
F
S
26
71°
59°
27
80°
58°
28
73°
56°
29
75°
48°
30
78°
48°
31
84°
49°
1
66°
54°
2
70°
48°
3
77°
52°
4
84°
53°
5
85°
55°
6
83°
57°
7
78°
59°
8
78°
58°
9
76°
57°
10
74°
57°
11
75°
58°
12
74°
57°
13
77°
58°
14
76°
55°
15
79°
56°
16
73°
55°
17
77°
57°
18
78°
58°
19
78°
56°
20
76°
55°
21
73°
57°
22
71°
53°
23
74°
57°
24
70°
50°
25
75°
55°
26
78°
58°
27
78°
58°
28
77°
57°
29
72°
55°
30
69°
49°
31
72°
54°
1
69°
53°
2
68°
49°
3
69°
48°
4
71°
53°
5
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Marysville
Marysville's August 2026 forecast shows daily high temperatures ranging from 66° to 85°, with overnight lows between 48° and 59°. The average high for August is 75° with an average low of 55°. 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 Marysville. See also: September | October | November.
