S
M
T
W
T
F
S
26
75°
61°
27
76°
60°
28
74°
59°
29
72°
56°
30
71°
56°
31
70°
57°
1
71°
61°
2
70°
62°
3
74°
62°
4
73°
57°
5
72°
56°
6
72°
59°
7
75°
61°
8
76°
63°
9
76°
58°
10
75°
57°
11
72°
56°
12
74°
58°
13
73°
59°
14
72°
61°
15
76°
60°
16
75°
59°
17
76°
57°
18
73°
57°
19
70°
58°
20
Hist. Avg.
69°
58°
21
Hist. Avg.
69°
58°
22
Hist. Avg.
69°
58°
23
Hist. Avg.
69°
58°
24
Hist. Avg.
69°
57°
25
Hist. Avg.
69°
57°
26
Hist. Avg.
68°
57°
27
Hist. Avg.
68°
57°
28
Hist. Avg.
68°
57°
29
Hist. Avg.
68°
56°
30
Hist. Avg.
68°
56°
31
Hist. Avg.
68°
56°
1
Hist. Avg.
67°
56°
2
Hist. Avg.
67°
56°
3
Hist. Avg.
67°
55°
4
Hist. Avg.
67°
55°
5
Hist. Avg.
67°
55°
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 70° to 76°, with overnight lows between 56° and 63°. The average high for August is 73° with an average low of 59°. 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.
