S
M
T
W
T
F
S
1
46°
29°
2
31°
26°
3
38°
30°
4
45°
36°
5
53°
40°
6
49°
43°
7
58°
43°
8
69°
45°
9
72°
36°
10
81°
43°
11
79°
53°
12
67°
30°
13
54°
28°
14
53°
42°
15
53°
38°
16
67°
32°
17
36°
25°
18
37°
18°
19
56°
35°
20
69°
33°
21
64°
46°
22
83°
40°
23
61°
36°
24
47°
27°
25
58°
32°
26
78°
53°
27
65°
34°
28
45°
30°
29
61°
28°
30
71°
51°
31
81°
60°
1
80°
56°
2
58°
46°
3
73°
46°
4
83°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Johnston
Johnston'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 Johnston. See also: April | May | June.
