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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
18°
Feels 18
Low
5°
Feels 2
Average Precipitation
10 Days
Rain amount
81mm
Snow amount
3.1cm
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
13°
18
5°
19
10°
20
16°
21
15°
22
20°
23
24°
24
25°
25
27°
26
25°
27
27°
28
27°
29
25°
30
25°
31
25°
Forecast
Sunday, May 17, 2026
Day
13°
Feels 11
Wind
24 km/h N
Gust
36 km/h
Humidity
26%
P.O.P
30%
Night
0°
Feels -7
Wind
30 km/h N
Gust
45 km/h
Humidity
80%
P.O.P
80%
Snow
~1 cm
Rain
1-3 mm
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.