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