S
M
T
W
T
F
S
29
48°
32°
30
52°
26°
1
49°
24°
2
49°
19°
3
50°
14°
4
36°
15°
5
33°
16°
6
34°
17°
7
36°
20°
8
38°
19°
9
38°
23°
10
36°
18°
11
34°
20°
12
34°
20°
13
33°
16°
14
33°
12°
15
30°
8°
16
29°
13°
17
28°
25°
18
41°
24°
19
43°
24°
20
45°
23°
21
42°
26°
22
42°
27°
23
44°
24°
24
44°
20°
25
39°
19°
26
36°
21°
27
39°
26°
28
42°
26°
29
43°
24°
30
44°
23°
31
43°
20°
1
40°
18°
2
32°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Streamwood
Streamwood's December 2026 forecast shows daily high temperatures ranging from 28° to 52°, with overnight lows between 8° and 32°. The average high for December is 39° with an average low of 21°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Streamwood. See also: January | February | March.
