S
M
T
W
T
F
S
30
66°
55°
31
64°
52°
1
61°
55°
2
61°
55°
3
63°
57°
4
63°
55°
5
63°
52°
6
66°
55°
7
N/A
8
59°
45°
9
62°
51°
10
62°
51°
11
62°
49°
12
61°
57°
13
65°
52°
14
64°
51°
15
62°
47°
16
60°
48°
17
62°
48°
18
61°
47°
19
62°
51°
20
62°
50°
21
62°
52°
22
61°
51°
23
62°
50°
24
62°
47°
25
59°
45°
26
59°
44°
27
60°
48°
28
61°
49°
29
59°
48°
30
60°
46°
1
59°
49°
2
60°
49°
3
60°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Renfrew
Renfrew's September 2026 forecast shows daily high temperatures ranging from 59° to 65°, with overnight lows between 44° and 57°. The average high for September is 61° with an average low of 49°. 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 Renfrew. See also: October | November | December.
