S
M
T
W
T
F
S
30
105°
81°
31
105°
81°
1
105°
80°
2
106°
82°
3
106°
83°
4
106°
83°
5
105°
75°
6
104°
78°
7
105°
80°
8
106°
82°
9
104°
81°
10
107°
79°
11
106°
82°
12
104°
82°
13
100°
81°
14
100°
81°
15
102°
77°
16
100°
79°
17
91°
77°
18
94°
76°
19
100°
77°
20
99°
78°
21
97°
77°
22
95°
77°
23
96°
76°
24
96°
77°
25
95°
75°
26
94°
73°
27
94°
76°
28
91°
76°
29
93°
75°
30
94°
76°
1
91°
75°
2
91°
76°
3
93°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pharr
Pharr's September 2026 forecast shows daily high temperatures ranging from 91° to 102°, with overnight lows between 73° and 81°. The average high for September is 96° with an average low of 77°. 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 Pharr. See also: October | November | December.