S
M
T
W
T
F
S
26
86°
62°
27
85°
62°
28
85°
64°
29
86°
65°
30
86°
65°
31
87°
67°
1
87°
64°
2
89°
65°
3
92°
67°
4
93°
66°
5
93°
68°
6
94°
70°
7
94°
71°
8
95°
70°
9
Hist. Avg.
90°
69°
10
Hist. Avg.
90°
69°
11
Hist. Avg.
90°
69°
12
Hist. Avg.
90°
68°
13
Hist. Avg.
90°
68°
14
Hist. Avg.
90°
68°
15
Hist. Avg.
90°
68°
16
Hist. Avg.
90°
68°
17
Hist. Avg.
90°
68°
18
Hist. Avg.
90°
68°
19
Hist. Avg.
89°
68°
20
Hist. Avg.
89°
68°
21
Hist. Avg.
89°
67°
22
Hist. Avg.
89°
67°
23
Hist. Avg.
89°
67°
24
Hist. Avg.
88°
67°
25
Hist. Avg.
88°
67°
26
Hist. Avg.
88°
66°
27
Hist. Avg.
88°
66°
28
Hist. Avg.
88°
66°
29
Hist. Avg.
87°
66°
30
Hist. Avg.
87°
66°
31
Hist. Avg.
87°
65°
1
Hist. Avg.
86°
65°
2
Hist. Avg.
86°
65°
3
Hist. Avg.
86°
64°
4
Hist. Avg.
86°
64°
5
Hist. Avg.
85°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Lowell
Lowell's August 2026 forecast shows daily high temperatures ranging from 85° to 95°, with overnight lows between 62° and 71°. The average high for August is 89° with an average low of 66°. 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.