S
M
T
W
T
F
S
30
89°
76°
31
89°
76°
1
90°
75°
2
88°
75°
3
88°
74°
4
87°
75°
5
88°
75°
6
88°
74°
7
90°
75°
8
91°
75°
9
89°
74°
10
90°
73°
11
91°
74°
12
90°
72°
13
89°
72°
14
90°
71°
15
89°
73°
16
90°
73°
17
Hist. Avg.
88°
70°
18
Hist. Avg.
87°
70°
19
Hist. Avg.
87°
69°
20
Hist. Avg.
87°
69°
21
Hist. Avg.
86°
69°
22
Hist. Avg.
86°
68°
23
Hist. Avg.
86°
68°
24
Hist. Avg.
86°
68°
25
Hist. Avg.
86°
67°
26
Hist. Avg.
85°
67°
27
Hist. Avg.
85°
66°
28
Hist. Avg.
85°
66°
29
Hist. Avg.
84°
66°
30
Hist. Avg.
84°
65°
1
Hist. Avg.
84°
65°
2
Hist. Avg.
84°
65°
3
Hist. Avg.
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Welcome
Welcome's September 2026 forecast shows daily high temperatures ranging from 87° to 91°, with overnight lows between 71° and 76°. The average high for September is 89° with an average low of 74°. 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 Welcome. See also: October | November | December.
