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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Keystone, CO
Content continues below
May
Average Temperature
High
13°
Feels 12
Low
-2°
Feels -6
Average Precipitation
4 Days
Rain amount
3.7mm
Snow amount
5.5cm
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
12°
18
6°
19
7°
20
8°
21
10°
22
11°
23
14°
24
16°
25
18°
26
17°
27
14°
28
18°
29
17°
30
18°
31
19°
Forecast
Sunday, May 17, 2026
Day
12°
Feels 10
Wind
20 km/h W
Gust
29 km/h
Humidity
27%
P.O.P
90%
Rain
1-3 mm
Night
1°
Feels -3
Wind
14 km/h SE
Gust
21 km/h
Humidity
91%
P.O.P
100%
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.