Click on a day for an hourly weather forecast
The temperatures in Keystone in July are comfortable with low of 19°C and and high up to 26°C.
You can expect a few rainy days in Keystone during July, but usually the weather is comfortable in July.
Our weather forecast can give you a great sense of what weather to expect in Keystone in July 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 |