S
M
T
W
T
F
S
30
90°
56°
31
90°
55°
1
89°
55°
2
89°
54°
3
88°
54°
4
86°
52°
5
84°
50°
6
82°
49°
7
85°
53°
8
87°
55°
9
89°
53°
10
87°
45°
11
78°
53°
12
85°
52°
13
86°
53°
14
87°
55°
15
88°
52°
16
85°
43°
17
75°
47°
18
83°
49°
19
74°
41°
20
74°
45°
21
Hist. Avg.
79°
46°
22
Hist. Avg.
78°
46°
23
Hist. Avg.
78°
46°
24
Hist. Avg.
78°
45°
25
Hist. Avg.
77°
45°
26
Hist. Avg.
77°
45°
27
Hist. Avg.
76°
44°
28
Hist. Avg.
76°
44°
29
Hist. Avg.
75°
44°
30
Hist. Avg.
75°
43°
1
Hist. Avg.
74°
43°
2
Hist. Avg.
74°
43°
3
Hist. Avg.
73°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Pasco
Pasco's September 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 41° and 56°. The average high for September is 85° with an average low of 51°. 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.
