The temperatures in Grand Junction in May are quite cold with temperatures between 5°C and 22°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Grand Junction during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Grand Junction in May 2025.
If you’re planning to visit Grand Junction in the near future, we highly recommend that you review the 14 day weather forecast for Grand Junction before you arrive.
Temperatures
22° / 5°
Rainy Days
3
Snowy Days
0
Dry Days
28
Rainfall
30
mm
Sun Hours
9.9
Hrs
