S
M
T
W
T
F
S
30
80°
62°
31
83°
64°
1
85°
61°
2
79°
58°
3
78°
58°
4
78°
56°
5
79°
56°
6
79°
60°
7
82°
57°
8
83°
61°
9
83°
61°
10
82°
60°
11
83°
59°
12
83°
61°
13
82°
61°
14
82°
60°
15
83°
61°
16
83°
60°
17
80°
59°
18
81°
59°
19
80°
58°
20
79°
58°
21
80°
57°
22
79°
49°
23
74°
50°
24
Hist. Avg.
77°
52°
25
Hist. Avg.
76°
52°
26
Hist. Avg.
76°
51°
27
Hist. Avg.
76°
50°
28
Hist. Avg.
75°
50°
29
Hist. Avg.
75°
49°
30
Hist. Avg.
75°
49°
1
Hist. Avg.
74°
48°
2
Hist. Avg.
74°
48°
3
Hist. Avg.
74°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Parker
Parker's September 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 49° and 64°. The average high for September is 81° 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 September weather will actually feel in Parker. See also: October | November | December.