S
M
T
W
T
F
S
30
89°
74°
31
90°
75°
1
90°
75°
2
91°
74°
3
91°
75°
4
90°
75°
5
91°
73°
6
89°
74°
7
89°
74°
8
88°
73°
9
87°
74°
10
89°
74°
11
89°
73°
12
88°
74°
13
89°
74°
14
87°
73°
15
85°
73°
16
86°
72°
17
86°
73°
18
87°
73°
19
86°
72°
20
87°
72°
21
87°
69°
22
87°
70°
23
86°
70°
24
87°
69°
25
86°
68°
26
87°
69°
27
87°
71°
28
88°
70°
29
87°
70°
30
87°
69°
1
86°
70°
2
86°
69°
3
85°
69°
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 85° to 91°, with overnight lows between 68° and 75°. The average high for September is 88° with an average low of 72°. 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.
