S
M
T
W
T
F
S
30
75°
47°
31
74°
44°
1
73°
42°
2
66°
44°
3
66°
44°
4
67°
43°
5
66°
42°
6
65°
43°
7
69°
42°
8
71°
41°
9
69°
42°
10
70°
48°
11
68°
48°
12
69°
47°
13
70°
41°
14
69°
40°
15
68°
45°
16
67°
45°
17
62°
44°
18
62°
45°
19
59°
41°
20
67°
46°
21
63°
45°
22
Hist. Avg.
66°
42°
23
Hist. Avg.
65°
41°
24
Hist. Avg.
65°
41°
25
Hist. Avg.
64°
40°
26
Hist. Avg.
64°
40°
27
Hist. Avg.
63°
40°
28
Hist. Avg.
63°
39°
29
Hist. Avg.
62°
39°
30
Hist. Avg.
62°
39°
1
Hist. Avg.
61°
38°
2
Hist. Avg.
61°
38°
3
Hist. Avg.
60°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Coldstream
Coldstream's September 2026 forecast shows daily high temperatures ranging from 59° to 75°, with overnight lows between 40° and 48°. The average high for September is 68° with an average low of 44°. 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.
