S
M
T
W
T
F
S
26
86°
67°
27
86°
65°
28
87°
69°
29
88°
66°
30
84°
66°
31
84°
66°
1
85°
66°
2
84°
69°
3
87°
70°
4
88°
69°
5
89°
65°
6
83°
63°
7
84°
68°
8
90°
68°
9
84°
69°
10
89°
69°
11
86°
66°
12
87°
68°
13
89°
69°
14
88°
67°
15
83°
63°
16
82°
62°
17
82°
66°
18
83°
68°
19
83°
69°
20
86°
69°
21
87°
68°
22
88°
68°
23
87°
67°
24
90°
68°
25
90°
68°
26
89°
66°
27
83°
65°
28
84°
66°
29
81°
60°
30
82°
59°
31
79°
59°
1
79°
65°
2
80°
67°
3
85°
66°
4
88°
67°
5
87°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Norristown
Norristown's August 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 59° and 70°. The average high for August is 85° 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 Norristown. See also: September | October | November.
