S
M
T
W
T
F
S
26
84°
64°
27
91°
64°
28
90°
65°
29
90°
64°
30
87°
67°
31
90°
63°
1
90°
61°
2
89°
63°
3
90°
64°
4
86°
65°
5
85°
63°
6
84°
63°
7
86°
65°
8
85°
63°
9
84°
64°
10
88°
66°
11
90°
65°
12
89°
62°
13
89°
61°
14
88°
63°
15
89°
63°
16
87°
60°
17
83°
62°
18
87°
63°
19
88°
64°
20
88°
64°
21
89°
63°
22
89°
62°
23
87°
63°
24
88°
64°
25
87°
63°
26
85°
64°
27
86°
62°
28
84°
60°
29
83°
60°
30
83°
61°
31
86°
63°
1
88°
61°
2
87°
63°
3
87°
62°
4
89°
62°
5
89°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Lowell
Lowell's August 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 60° and 67°. The average high for August is 87° with an average low of 63°. 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 Lowell. See also: September | October | November.
