S
M
T
W
T
F
S
26
60°
31°
27
59°
32°
28
57°
30°
29
57°
31°
30
56°
33°
31
58°
35°
1
60°
29°
2
55°
32°
3
57°
28°
4
55°
31°
5
56°
30°
6
57°
33°
7
61°
34°
8
63°
31°
9
57°
33°
10
56°
31°
11
57°
30°
12
57°
31°
13
56°
35°
14
60°
35°
15
58°
30°
16
61°
33°
17
61°
34°
18
Hist. Avg.
66°
34°
19
Hist. Avg.
65°
34°
20
Hist. Avg.
65°
34°
21
Hist. Avg.
65°
34°
22
Hist. Avg.
65°
33°
23
Hist. Avg.
65°
33°
24
Hist. Avg.
65°
33°
25
Hist. Avg.
64°
33°
26
Hist. Avg.
64°
32°
27
Hist. Avg.
64°
32°
28
Hist. Avg.
64°
32°
29
Hist. Avg.
64°
32°
30
Hist. Avg.
64°
31°
31
Hist. Avg.
63°
31°
1
Hist. Avg.
63°
31°
2
Hist. Avg.
63°
31°
3
Hist. Avg.
63°
30°
4
Hist. Avg.
63°
30°
5
Hist. Avg.
62°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in St. Mary's
St. Mary's's August 2026 forecast shows daily high temperatures ranging from 55° to 63°, with overnight lows between 28° and 35°. The average high for August is 58° with an average low of 32°. 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 St. Mary's. See also: September | October | November.
