S
M
T
W
T
F
S
26
80°
45°
27
69°
59°
28
62°
53°
29
61°
43°
30
63°
37°
1
60°
41°
2
59°
41°
3
73°
42°
4
78°
56°
5
59°
47°
6
61°
40°
7
68°
39°
8
66°
50°
9
79°
51°
10
70°
47°
11
74°
43°
12
83°
50°
13
73°
48°
14
73°
42°
15
80°
52°
16
78°
65°
17
85°
67°
18
77°
64°
19
77°
59°
20
68°
47°
21
70°
54°
22
64°
58°
23
74°
58°
24
75°
57°
25
75°
60°
26
77°
59°
27
78°
61°
28
78°
61°
29
78°
60°
30
79°
59°
31
78°
60°
1
78°
56°
2
81°
60°
3
74°
56°
4
74°
53°
5
75°
61°
6
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Richland
Richland's May 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 47° and 62°. The average high for May is 75° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Richland. See also: June | July | August.
