S
M
T
W
T
F
S
29
48°
32°
30
52°
41°
31
59°
43°
1
55°
46°
2
52°
41°
3
59°
45°
4
59°
41°
5
55°
36°
6
59°
34°
7
61°
43°
8
75°
45°
9
68°
41°
10
56°
45°
11
55°
44°
12
58°
36°
13
56°
38°
14
61°
42°
15
61°
46°
16
64°
46°
17
61°
45°
18
62°
45°
19
61°
46°
20
61°
44°
21
60°
45°
22
58°
44°
23
55°
41°
24
54°
38°
25
54°
38°
26
55°
37°
27
55°
39°
28
59°
43°
29
61°
45°
30
61°
45°
1
62°
44°
2
62°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Chelmsford
Chelmsford's April 2026 forecast shows daily high temperatures ranging from 54° to 64°, with overnight lows between 36° and 46°. The average high for April is 59° 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 April weather will actually feel in Chelmsford. See also: May | June | July.