S
M
T
W
T
F
S
26
64°
51°
27
66°
51°
28
62°
52°
29
63°
50°
30
65°
54°
31
64°
54°
1
67°
52°
2
68°
53°
3
72°
54°
4
71°
56°
5
78°
56°
6
77°
55°
7
74°
55°
8
78°
56°
9
69°
55°
10
66°
52°
11
67°
53°
12
67°
52°
13
66°
50°
14
66°
50°
15
67°
51°
16
66°
50°
17
66°
50°
18
67°
54°
19
65°
54°
20
66°
50°
21
65°
50°
22
66°
51°
23
65°
53°
24
65°
52°
25
64°
54°
26
64°
54°
27
65°
50°
28
64°
48°
29
65°
48°
30
70°
52°
31
70°
52°
1
69°
54°
2
70°
53°
3
69°
53°
4
62°
52°
5
64°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Terrace
Terrace's August 2026 forecast shows daily high temperatures ranging from 62° to 78°, with overnight lows between 48° and 56°. The average high for August is 67° with an average low of 52°. 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 Terrace. See also: September | October | November.