S
M
T
W
T
F
S
30
77°
49°
31
74°
49°
1
73°
55°
2
73°
49°
3
74°
48°
4
71°
56°
5
73°
58°
6
77°
50°
7
77°
48°
8
69°
47°
9
69°
49°
10
71°
50°
11
70°
50°
12
67°
52°
13
76°
51°
14
77°
47°
15
Hist. Avg.
70°
48°
16
Hist. Avg.
70°
47°
17
Hist. Avg.
69°
47°
18
Hist. Avg.
69°
46°
19
Hist. Avg.
68°
46°
20
Hist. Avg.
68°
46°
21
Hist. Avg.
67°
45°
22
Hist. Avg.
67°
45°
23
Hist. Avg.
66°
44°
24
Hist. Avg.
66°
44°
25
Hist. Avg.
66°
43°
26
Hist. Avg.
65°
43°
27
Hist. Avg.
65°
42°
28
Hist. Avg.
64°
42°
29
Hist. Avg.
64°
42°
30
Hist. Avg.
64°
41°
1
Hist. Avg.
63°
41°
2
Hist. Avg.
63°
41°
3
Hist. Avg.
62°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Harris
Harris's September 2026 forecast shows daily high temperatures ranging from 67° to 77°, with overnight lows between 47° and 58°. The average high for September is 73° with an average low of 51°. 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 Harris. See also: October | November | December.
