S
M
T
W
T
F
S
30
51°
38°
31
50°
33°
1
55°
29°
2
54°
32°
3
60°
42°
4
61°
58°
5
59°
46°
6
59°
45°
7
57°
47°
8
59°
49°
9
52°
47°
10
56°
49°
11
52°
48°
12
58°
44°
13
58°
38°
14
57°
31°
15
56°
47°
16
49°
46°
17
53°
43°
18
51°
41°
19
52°
38°
20
47°
32°
21
46°
24°
22
45°
29°
23
47°
33°
24
44°
35°
25
48°
34°
26
46°
35°
27
47°
33°
28
46°
33°
29
44°
34°
30
43°
36°
1
40°
30°
2
40°
26°
3
38°
26°
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 38° to 53°, with overnight lows between 24° and 43°. The average high for September is 46° with an average low of 33°. 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.
