S
M
T
W
T
F
S
30
84°
51°
31
82°
48°
1
82°
45°
2
90°
52°
3
86°
62°
4
96°
59°
5
88°
65°
6
92°
66°
7
87°
56°
8
75°
55°
9
77°
51°
10
84°
53°
11
66°
44°
12
58°
45°
13
56°
46°
14
57°
41°
15
67°
42°
16
65°
41°
17
61°
42°
18
66°
41°
19
71°
46°
20
72°
46°
21
70°
45°
22
69°
40°
23
62°
47°
24
68°
46°
25
62°
45°
26
68°
45°
27
73°
44°
28
72°
40°
29
67°
44°
30
60°
41°
1
62°
43°
2
63°
41°
3
56°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Medicine Lake
Medicine Lake's September 2026 forecast shows daily high temperatures ranging from 56° to 84°, with overnight lows between 33° and 53°. The average high for September is 66° 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 Medicine Lake. See also: October | November | December.
