S
M
T
W
T
F
S
26
89°
69°
27
89°
69°
28
88°
68°
29
87°
69°
30
88°
63°
31
81°
62°
1
81°
62°
2
82°
63°
3
82°
63°
4
83°
62°
5
83°
62°
6
85°
65°
7
86°
68°
8
86°
67°
9
82°
67°
10
85°
61°
11
84°
61°
12
85°
62°
13
84°
66°
14
85°
67°
15
87°
65°
16
87°
68°
17
88°
67°
18
88°
65°
19
86°
59°
20
82°
59°
21
80°
60°
22
80°
59°
23
81°
59°
24
80°
60°
25
81°
59°
26
84°
58°
27
83°
59°
28
81°
62°
29
82°
60°
30
79°
59°
31
81°
63°
1
85°
56°
2
83°
57°
3
78°
56°
4
79°
57°
5
79°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Morrisville
Morrisville's August 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 56° and 69°. The average high for August is 84° 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 Morrisville. See also: September | October | November.
