S
M
T
W
T
F
S
26
90°
71°
27
92°
70°
28
91°
69°
29
92°
70°
30
91°
69°
31
90°
71°
1
91°
71°
2
91°
71°
3
93°
72°
4
94°
71°
5
93°
70°
6
92°
71°
7
90°
68°
8
91°
69°
9
94°
68°
10
90°
70°
11
94°
71°
12
91°
71°
13
90°
70°
14
90°
71°
15
91°
71°
16
91°
70°
17
94°
71°
18
93°
69°
19
89°
70°
20
91°
70°
21
92°
68°
22
93°
68°
23
90°
69°
24
89°
67°
25
90°
68°
26
90°
70°
27
92°
69°
28
92°
66°
29
87°
67°
30
87°
66°
31
88°
66°
1
88°
65°
2
89°
65°
3
88°
66°
4
91°
66°
5
90°
69°
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 87° to 94°, with overnight lows between 65° and 72°. The average high for August is 91° with an average low of 69°. 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.
