S
M
T
W
T
F
S
30
89°
57°
31
88°
53°
1
91°
61°
2
94°
54°
3
89°
57°
4
95°
58°
5
93°
61°
6
92°
61°
7
88°
57°
8
86°
51°
9
83°
52°
10
86°
53°
11
85°
52°
12
84°
48°
13
83°
45°
14
84°
46°
15
85°
47°
16
75°
45°
17
82°
52°
18
79°
51°
19
77°
47°
20
65°
48°
21
73°
49°
22
72°
49°
23
78°
50°
24
77°
46°
25
63°
42°
26
62°
39°
27
65°
41°
28
67°
46°
29
74°
45°
30
72°
46°
1
73°
45°
2
62°
41°
3
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Agate
Agate's September 2026 forecast shows daily high temperatures ranging from 62° to 95°, with overnight lows between 39° and 61°. The average high for September is 78° with an average low of 49°. 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 Agate. See also: October | November | December.
