S
M
T
W
T
F
S
30
69°
51°
31
74°
56°
1
77°
59°
2
79°
59°
3
78°
58°
4
69°
48°
5
70°
49°
6
69°
52°
7
74°
53°
8
73°
57°
9
70°
50°
10
71°
49°
11
70°
53°
12
70°
58°
13
68°
49°
14
67°
48°
15
67°
48°
16
68°
49°
17
68°
50°
18
71°
50°
19
76°
52°
20
75°
50°
21
69°
50°
22
68°
51°
23
64°
49°
24
65°
48°
25
63°
44°
26
65°
45°
27
64°
47°
28
65°
54°
29
70°
52°
30
61°
45°
1
73°
56°
2
Hist. Avg.
65°
48°
3
Hist. Avg.
65°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Redmond
Redmond's September 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 44° and 59°. The average high for September is 70° with an average low of 51°. 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 Redmond. See also: October | November | December.
