S
M
T
W
T
F
S
30
86°
65°
31
79°
60°
1
78°
57°
2
78°
57°
3
80°
63°
4
85°
65°
5
84°
64°
6
84°
65°
7
84°
61°
8
84°
62°
9
85°
62°
10
83°
60°
11
85°
62°
12
84°
61°
13
84°
61°
14
85°
52°
15
83°
50°
16
73°
50°
17
73°
52°
18
76°
58°
19
80°
59°
20
78°
58°
21
75°
56°
22
76°
53°
23
80°
56°
24
81°
57°
25
82°
56°
26
82°
56°
27
81°
49°
28
80°
46°
29
71°
52°
30
69°
51°
1
68°
52°
2
69°
51°
3
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Coldstream
Coldstream's September 2026 forecast shows daily high temperatures ranging from 68° to 86°, with overnight lows between 46° and 65°. The average high for September is 79° with an average low of 57°. 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 Coldstream. See also: October | November | December.
