S
M
T
W
T
F
S
26
82°
62°
27
81°
61°
28
79°
64°
29
81°
63°
30
80°
62°
31
81°
64°
1
81°
64°
2
82°
63°
3
83°
65°
4
82°
65°
5
84°
64°
6
80°
61°
7
80°
61°
8
81°
63°
9
80°
62°
10
79°
62°
11
80°
57°
12
79°
60°
13
80°
64°
14
81°
63°
15
79°
61°
16
78°
60°
17
79°
61°
18
79°
63°
19
80°
63°
20
84°
64°
21
84°
63°
22
83°
62°
23
80°
61°
24
87°
62°
25
84°
60°
26
85°
60°
27
86°
55°
28
78°
54°
29
76°
53°
30
76°
53°
31
75°
51°
1
76°
54°
2
77°
58°
3
76°
61°
4
83°
61°
5
85°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chelmsford Center
Chelmsford Center's August 2026 forecast shows daily high temperatures ranging from 75° to 87°, with overnight lows between 51° and 65°. The average high for August is 81° with an average low of 61°. 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 Chelmsford Center. See also: September | October | November.
