S
M
T
W
T
F
S
30
82°
59°
31
82°
65°
1
83°
60°
2
81°
57°
3
80°
55°
4
79°
56°
5
80°
56°
6
82°
62°
7
85°
64°
8
86°
64°
9
87°
60°
10
80°
55°
11
82°
61°
12
83°
62°
13
86°
53°
14
78°
52°
15
77°
53°
16
80°
54°
17
81°
53°
18
82°
57°
19
84°
56°
20
84°
57°
21
83°
59°
22
83°
59°
23
78°
58°
24
78°
58°
25
76°
57°
26
82°
57°
27
82°
56°
28
81°
56°
29
81°
55°
30
80°
56°
1
81°
56°
2
81°
47°
3
80°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Prairie Grove
Prairie Grove's September 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 46° and 65°. The average high for September is 81° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Prairie Grove. See also: October | November | December.
