S
M
T
W
T
F
S
30
93°
61°
31
97°
64°
1
95°
69°
2
94°
70°
3
94°
69°
4
94°
69°
5
96°
69°
6
96°
71°
7
97°
73°
8
96°
71°
9
95°
73°
10
96°
72°
11
86°
64°
12
85°
60°
13
85°
61°
14
83°
60°
15
82°
64°
16
85°
64°
17
85°
63°
18
84°
64°
19
85°
64°
20
85°
63°
21
84°
64°
22
84°
63°
23
83°
62°
24
84°
62°
25
84°
61°
26
83°
62°
27
84°
61°
28
84°
61°
29
83°
60°
30
84°
61°
1
83°
60°
2
82°
61°
3
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Prim
Prim's September 2026 forecast shows daily high temperatures ranging from 82° to 97°, with overnight lows between 60° and 73°. The average high for September is 87° with an average low of 65°. 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 Prim. See also: October | November | December.
