S
M
T
W
T
F
S
30
79°
58°
31
79°
57°
1
78°
56°
2
79°
58°
3
80°
59°
4
80°
58°
5
79°
57°
6
79°
57°
7
80°
55°
8
75°
53°
9
75°
54°
10
76°
54°
11
78°
53°
12
73°
52°
13
64°
44°
14
63°
46°
15
63°
50°
16
64°
50°
17
63°
45°
18
71°
47°
19
72°
51°
20
73°
52°
21
72°
52°
22
70°
40°
23
71°
41°
24
69°
49°
25
68°
51°
26
67°
41°
27
70°
36°
28
60°
37°
29
64°
46°
30
64°
43°
1
58°
43°
2
57°
48°
3
63°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in McGrath
McGrath's September 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 36° and 59°. The average high for September is 71° with an average low of 50°. 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 McGrath. See also: October | November | December.
