S
M
T
W
T
F
S
26
88°
59°
27
89°
54°
28
89°
61°
29
88°
54°
30
84°
53°
31
87°
59°
1
90°
56°
2
88°
56°
3
78°
54°
4
78°
55°
5
84°
59°
6
69°
49°
7
85°
59°
8
84°
59°
9
85°
58°
10
84°
59°
11
84°
59°
12
83°
58°
13
82°
58°
14
83°
59°
15
81°
58°
16
83°
58°
17
84°
59°
18
83°
58°
19
81°
58°
20
82°
59°
21
81°
58°
22
80°
57°
23
77°
56°
24
80°
56°
25
81°
55°
26
81°
57°
27
82°
57°
28
83°
56°
29
81°
55°
30
69°
55°
31
68°
54°
1
77°
54°
2
79°
55°
3
78°
54°
4
78°
52°
5
78°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lethbridge
Lethbridge's August 2026 forecast shows daily high temperatures ranging from 68° to 90°, with overnight lows between 49° and 61°. The average high for August is 82° with an average low of 56°. 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 Lethbridge. See also: September | October | November.
