S
M
T
W
T
F
S
30
65°
49°
31
68°
46°
1
68°
44°
2
72°
48°
3
68°
59°
4
68°
60°
5
62°
51°
6
71°
50°
7
77°
52°
8
60°
41°
9
70°
41°
10
64°
46°
11
64°
46°
12
73°
51°
13
75°
54°
14
60°
43°
15
60°
39°
16
72°
47°
17
57°
44°
18
58°
44°
19
53°
39°
20
52°
42°
21
52°
39°
22
N/A
23
60°
33°
24
66°
40°
25
65°
40°
26
68°
47°
27
66°
44°
28
59°
45°
29
61°
50°
30
67°
54°
1
69°
52°
2
64°
47°
3
59°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Saint-Prime
Saint-Prime's September 2026 forecast shows daily high temperatures ranging from 59° to 69°, with overnight lows between 44° and 54°. The average high for September is 64° with an average low of 48°. 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 Saint-Prime. See also: October | November | December.