S
M
T
W
T
F
S
30
90°
61°
31
85°
61°
1
85°
63°
2
88°
66°
3
86°
66°
4
88°
65°
5
87°
65°
6
88°
66°
7
88°
64°
8
87°
63°
9
85°
60°
10
84°
59°
11
86°
59°
12
87°
63°
13
87°
64°
14
Hist. Avg.
84°
60°
15
Hist. Avg.
84°
59°
16
Hist. Avg.
84°
59°
17
Hist. Avg.
83°
59°
18
Hist. Avg.
83°
58°
19
Hist. Avg.
82°
58°
20
Hist. Avg.
82°
58°
21
Hist. Avg.
82°
57°
22
Hist. Avg.
82°
57°
23
Hist. Avg.
81°
56°
24
Hist. Avg.
81°
56°
25
Hist. Avg.
80°
56°
26
Hist. Avg.
80°
55°
27
Hist. Avg.
80°
55°
28
Hist. Avg.
79°
54°
29
Hist. Avg.
79°
54°
30
Hist. Avg.
79°
54°
1
Hist. Avg.
78°
53°
2
Hist. Avg.
78°
53°
3
Hist. Avg.
78°
52°
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 84° to 90°, with overnight lows between 59° and 66°. The average high for September is 87° with an average low of 63°. 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.
