S
M
T
W
T
F
S
26
65°
57°
27
65°
56°
28
71°
57°
29
67°
57°
30
67°
56°
31
72°
55°
1
74°
56°
2
75°
56°
3
70°
56°
4
69°
56°
5
68°
58°
6
67°
56°
7
64°
56°
8
62°
56°
9
67°
56°
10
66°
57°
11
66°
57°
12
68°
57°
13
66°
57°
14
65°
58°
15
66°
59°
16
67°
59°
17
64°
58°
18
66°
59°
19
66°
58°
20
65°
57°
21
66°
59°
22
67°
57°
23
69°
57°
24
68°
58°
25
67°
57°
26
68°
58°
27
67°
56°
28
68°
55°
29
70°
58°
30
66°
54°
31
67°
58°
1
66°
58°
2
67°
57°
3
71°
58°
4
72°
59°
5
69°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Union Square
Union Square's August 2026 forecast shows daily high temperatures ranging from 64° to 72°, with overnight lows between 54° and 59°. The average high for August is 67° 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 Union Square. See also: September | October | November.
