S
M
T
W
T
F
S
27
73°
45°
28
74°
44°
29
78°
48°
30
67°
59°
1
70°
60°
2
65°
48°
3
69°
42°
4
72°
49°
5
69°
43°
6
73°
47°
7
79°
52°
8
72°
47°
9
70°
49°
10
80°
57°
11
77°
48°
12
87°
58°
13
78°
65°
14
65°
58°
15
65°
56°
16
56°
41°
17
55°
37°
18
62°
38°
19
64°
43°
20
67°
44°
21
67°
48°
22
71°
47°
23
67°
48°
24
68°
49°
25
67°
46°
26
65°
45°
27
62°
41°
28
63°
43°
29
62°
44°
30
58°
36°
31
56°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Streamwood
Streamwood's October 2026 forecast shows daily high temperatures ranging from 55° to 71°, with overnight lows between 36° and 49°. The average high for October is 64° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Streamwood. See also: November | December | January.