S
M
T
W
T
F
S
30
100°
70°
31
96°
68°
1
95°
68°
2
98°
67°
3
101°
68°
4
101°
70°
5
100°
68°
6
97°
69°
7
96°
67°
8
96°
68°
9
97°
70°
10
94°
67°
11
101°
65°
12
103°
63°
13
100°
67°
14
96°
68°
15
90°
66°
16
83°
64°
17
91°
64°
18
90°
65°
19
92°
63°
20
92°
61°
21
84°
59°
22
77°
58°
23
73°
60°
24
78°
61°
25
81°
58°
26
86°
61°
27
84°
60°
28
81°
58°
29
83°
56°
30
82°
57°
1
81°
51°
2
79°
57°
3
84°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Portales
Portales's September 2026 forecast shows daily high temperatures ranging from 73° to 92°, with overnight lows between 51° and 65°. The average high for September is 83° with an average low of 59°. 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 Portales. See also: October | November | December.
