S
M
T
W
T
F
S
1
33°
25°
2
46°
23°
3
42°
33°
4
44°
34°
5
49°
39°
6
76°
45°
7
63°
37°
8
61°
33°
9
72°
44°
10
63°
39°
11
49°
32°
12
46°
28°
13
47°
35°
14
39°
32°
15
64°
32°
16
33°
19°
17
25°
15°
18
47°
23°
19
64°
31°
20
73°
40°
21
74°
38°
22
66°
32°
23
39°
26°
24
53°
26°
25
70°
40°
26
78°
33°
27
39°
32°
28
47°
25°
29
63°
35°
30
80°
47°
31
69°
39°
1
42°
37°
2
72°
39°
3
64°
38°
4
62°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Chicago Heights
Chicago Heights's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in Chicago Heights. See also: April | May | June.
