S
M
T
W
T
F
S
26
63°
42°
27
59°
43°
28
56°
37°
29
61°
33°
30
56°
37°
1
56°
32°
2
70°
27°
3
74°
43°
4
73°
43°
5
57°
37°
6
60°
29°
7
70°
36°
8
81°
41°
9
72°
42°
10
75°
34°
11
87°
36°
12
80°
53°
13
80°
42°
14
85°
51°
15
95°
51°
16
85°
48°
17
86°
56°
18
57°
50°
19
58°
40°
20
59°
35°
21
69°
49°
22
73°
50°
23
76°
45°
24
86°
50°
25
95°
62°
26
93°
65°
27
92°
61°
28
89°
65°
29
76°
63°
30
76°
62°
31
79°
62°
1
80°
63°
2
83°
60°
3
84°
61°
4
82°
58°
5
80°
59°
6
84°
59°
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 76° to 89°, with overnight lows between 58° and 65°. The average high for May is 81° with an average low of 61°. 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.
