S
M
T
W
T
F
S
30
81°
50°
31
73°
47°
1
72°
47°
2
71°
48°
3
72°
47°
4
71°
47°
5
71°
48°
6
70°
48°
7
71°
50°
8
71°
52°
9
69°
47°
10
70°
46°
11
69°
47°
12
69°
45°
13
70°
50°
14
69°
49°
15
68°
48°
16
69°
45°
17
68°
44°
18
68°
44°
19
73°
45°
20
Hist. Avg.
68°
44°
21
Hist. Avg.
68°
44°
22
Hist. Avg.
67°
44°
23
Hist. Avg.
67°
43°
24
Hist. Avg.
66°
43°
25
Hist. Avg.
66°
43°
26
Hist. Avg.
66°
42°
27
Hist. Avg.
65°
42°
28
Hist. Avg.
65°
42°
29
Hist. Avg.
65°
41°
30
Hist. Avg.
64°
41°
1
Hist. Avg.
64°
40°
2
Hist. Avg.
64°
40°
3
Hist. Avg.
63°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Slate Run
Slate Run's September 2026 forecast shows daily high temperatures ranging from 68° to 81°, with overnight lows between 44° and 52°. The average high for September is 71° with an average low of 47°. 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 Slate Run. See also: October | November | December.