S
M
T
W
T
F
S
30
94°
72°
31
95°
71°
1
95°
74°
2
93°
75°
3
91°
77°
4
91°
75°
5
92°
75°
6
93°
75°
7
90°
75°
8
93°
73°
9
94°
74°
10
93°
72°
11
94°
73°
12
93°
74°
13
91°
73°
14
92°
74°
15
94°
77°
16
92°
76°
17
91°
73°
18
93°
73°
19
90°
71°
20
91°
72°
21
92°
70°
22
93°
69°
23
89°
73°
24
89°
68°
25
86°
61°
26
87°
59°
27
87°
63°
28
86°
67°
29
87°
68°
30
89°
71°
1
90°
72°
2
88°
71°
3
88°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pasco
Pasco's September 2026 forecast shows daily high temperatures ranging from 86° to 90°, with overnight lows between 59° and 73°. The average high for September is 88° with an average low of 68°. 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 Pasco. See also: October | November | December.
