S
M
T
W
T
F
S
30
79°
63°
31
86°
59°
1
82°
53°
2
82°
59°
3
88°
63°
4
79°
61°
5
77°
61°
6
81°
61°
7
81°
61°
8
81°
63°
9
75°
52°
10
77°
46°
11
84°
61°
12
68°
52°
13
64°
41°
14
59°
37°
15
68°
45°
16
70°
41°
17
71°
51°
18
61°
53°
19
67°
50°
20
65°
47°
21
63°
42°
22
62°
44°
23
67°
48°
24
68°
49°
25
67°
50°
26
68°
49°
27
66°
52°
28
67°
47°
29
67°
48°
30
63°
41°
1
66°
47°
2
57°
44°
3
60°
46°
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 71°, with overnight lows between 41° and 53°. The average high for September is 65° with an average low of 48°. 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.
