S
M
T
W
T
F
S
26
82°
56°
27
81°
50°
28
81°
56°
29
82°
56°
30
83°
48°
31
79°
50°
1
78°
55°
2
82°
53°
3
83°
52°
4
82°
50°
5
81°
54°
6
80°
56°
7
81°
56°
8
82°
54°
9
83°
51°
10
83°
47°
11
80°
46°
12
77°
46°
13
78°
45°
14
76°
47°
15
78°
49°
16
80°
54°
17
81°
56°
18
81°
57°
19
82°
56°
20
82°
56°
21
81°
54°
22
80°
50°
23
80°
54°
24
79°
49°
25
72°
49°
26
71°
47°
27
70°
46°
28
69°
43°
29
70°
43°
30
71°
44°
31
71°
45°
1
70°
52°
2
69°
53°
3
68°
52°
4
69°
50°
5
68°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Upper Sumas 6
Upper Sumas 6's August 2026 forecast shows daily high temperatures ranging from 68° to 83°, with overnight lows between 43° and 57°. The average high for August is 78° with an average low of 51°. 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 Upper Sumas 6. See also: September | October | November.
