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Monthly
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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Riverton, WY
Content continues below
May
Average Temperature
High
19°
Feels 19
Low
5°
Feels 3
Average Precipitation
10 Days
Rain amount
87mm
Snow amount
0.7cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
14°
18
5°
19
11°
20
16°
21
16°
22
21°
23
25°
24
26°
25
28°
26
26°
27
28°
28
28°
29
26°
30
26°
31
26°
Forecast
Sunday, May 17, 2026
Day
14°
Feels 12
Wind
23 km/h N
Gust
35 km/h
Humidity
26%
P.O.P
30%
Night
1°
Feels -5
Wind
29 km/h N
Gust
44 km/h
Humidity
86%
P.O.P
90%
Snow
<1 cm
Rain
~5 mm
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.