S
M
T
W
T
F
S
26
71°
64°
27
71°
62°
28
76°
60°
29
89°
61°
30
72°
65°
31
72°
63°
1
73°
58°
2
77°
59°
3
80°
64°
4
77°
65°
5
71°
64°
6
70°
59°
7
71°
55°
8
77°
54°
9
80°
60°
10
74°
64°
11
75°
59°
12
83°
61°
13
87°
62°
14
84°
65°
15
75°
66°
16
75°
64°
17
71°
64°
18
70°
66°
19
68°
63°
20
70°
61°
21
65°
58°
22
66°
55°
23
69°
54°
24
70°
56°
25
72°
59°
26
N/A
27
76°
60°
28
70°
62°
29
69°
61°
30
71°
59°
31
70°
58°
1
68°
58°
2
70°
60°
3
71°
62°
4
72°
60°
5
70°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Calais
Calais's August 2026 forecast shows daily high temperatures ranging from 68° to 76°, with overnight lows between 58° and 62°. The average high for August is 71° with an average low of 60°. 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 Calais. See also: September | October | November.
