S
M
T
W
T
F
S
26
83°
60°
27
80°
59°
28
81°
63°
29
83°
59°
30
79°
61°
31
80°
61°
1
79°
60°
2
79°
63°
3
80°
63°
4
82°
62°
5
83°
59°
6
78°
57°
7
79°
62°
8
85°
60°
9
80°
62°
10
84°
62°
11
80°
59°
12
81°
62°
13
84°
62°
14
84°
59°
15
78°
56°
16
77°
55°
17
77°
60°
18
78°
62°
19
77°
62°
20
80°
61°
21
82°
62°
22
83°
61°
23
80°
60°
24
85°
59°
25
84°
60°
26
85°
59°
27
77°
56°
28
78°
57°
29
75°
53°
30
74°
51°
31
73°
52°
1
73°
58°
2
74°
60°
3
77°
60°
4
82°
61°
5
81°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Port Jervis
Port Jervis's August 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 51° and 63°. The average high for August is 80° with an average low of 59°. 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 Port Jervis. See also: September | October | November.
