S
M
T
W
T
F
S
30
81°
52°
31
75°
50°
1
73°
49°
2
72°
50°
3
72°
49°
4
73°
50°
5
71°
49°
6
71°
49°
7
72°
51°
8
74°
54°
9
71°
50°
10
70°
49°
11
70°
50°
12
71°
48°
13
70°
51°
14
71°
52°
15
68°
48°
16
68°
46°
17
66°
45°
18
68°
46°
19
66°
52°
20
73°
51°
21
66°
44°
22
65°
44°
23
Hist. Avg.
69°
48°
24
Hist. Avg.
69°
48°
25
Hist. Avg.
68°
48°
26
Hist. Avg.
68°
47°
27
Hist. Avg.
67°
47°
28
Hist. Avg.
67°
46°
29
Hist. Avg.
66°
46°
30
Hist. Avg.
66°
46°
1
Hist. Avg.
65°
46°
2
Hist. Avg.
65°
45°
3
Hist. Avg.
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Whitesboro
Whitesboro's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 44° and 54°. The average high for September is 71° 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 Whitesboro. See also: October | November | December.
