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