Click on a day for an hourly weather forecast
The temperatures in Keystone in June are comfortable with low of 17°C and and high up to 24°C.
As it is almost never rain during June in Keystone the weather is perfect for hanging out outside and exploring all that Keystone has to offer.
Our weather forecast can give you a great sense of what weather to expect in Keystone in June 2025.
If you’re planning to visit Keystone in the near future, we highly recommend that you review the 14 day weather forecast for Keystone before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 20° / 13° | 3 | 28 | 0 | 61 mm | Good | Keystone in January |
| February | 20° / 12° | 2 | 26 | 0 | 55 mm | Good | Keystone in February |
| March | 20° / 13° | 2 | 29 | 0 | 37 mm | Good | Keystone in March |
| April | 21° / 14° | 1 | 29 | 0 | 16 mm | Good | Keystone in April |
| May | 22° / 15° | 1 | 31 | 0 | 9 mm | Good | Keystone in May |
| June | 24° / 17° | 0 | 30 | 0 | 5 mm | Perfect | Keystone in June |
| July | 26° / 19° | 1 | 30 | 0 | 16 mm | Perfect | Keystone in July |
| August | 27° / 20° | 0 | 31 | 0 | 12 mm | Perfect | Keystone in August |
| September | 27° / 21° | 0 | 30 | 0 | 12 mm | Perfect | Keystone in September |
| October | 25° / 19° | 1 | 30 | 0 | 17 mm | Perfect | Keystone in October |
| November | 23° / 15° | 1 | 29 | 0 | 24 mm | Perfect | Keystone in November |
| December | 19° / 12° | 2 | 29 | 0 | 61 mm | Good | Keystone in December |