S
M
T
W
T
F
S
26
82°
55°
27
86°
58°
28
61°
51°
29
63°
44°
30
67°
36°
1
65°
38°
2
63°
39°
3
64°
38°
4
81°
59°
5
66°
44°
6
62°
40°
7
68°
36°
8
73°
48°
9
82°
54°
10
68°
45°
11
77°
40°
12
81°
47°
13
77°
48°
14
77°
42°
15
83°
63°
16
84°
65°
17
88°
71°
18
86°
70°
19
73°
52°
20
66°
50°
21
71°
51°
22
78°
55°
23
82°
58°
24
83°
61°
25
80°
57°
26
83°
61°
27
81°
62°
28
81°
61°
29
79°
56°
30
79°
61°
31
82°
62°
1
83°
62°
2
82°
61°
3
77°
59°
4
75°
57°
5
81°
62°
6
83°
63°
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 66° to 88°, with overnight lows between 50° and 71°. The average high for May is 80° with an average low of 60°. 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.
