S
M
T
W
T
F
S
30
95°
72°
31
94°
68°
1
94°
68°
2
93°
67°
3
94°
67°
4
94°
72°
5
95°
70°
6
94°
69°
7
92°
70°
8
91°
69°
9
93°
70°
10
92°
69°
11
93°
66°
12
86°
65°
13
88°
66°
14
88°
66°
15
89°
67°
16
84°
66°
17
86°
66°
18
87°
58°
19
85°
59°
20
80°
59°
21
80°
62°
22
81°
65°
23
85°
65°
24
86°
64°
25
87°
65°
26
86°
64°
27
86°
64°
28
87°
60°
29
86°
61°
30
Hist. Avg.
84°
60°
1
Hist. Avg.
83°
59°
2
Hist. Avg.
83°
59°
3
Hist. Avg.
83°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Celina
Celina's September 2026 forecast shows daily high temperatures ranging from 80° to 95°, with overnight lows between 58° and 72°. The average high for September is 89° with an average low of 66°. 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 Celina. See also: October | November | December.