The temperatures in Boulder in July are comfortable with low of 15°C and and high up to 26°C.
You can expect rain for roughly half of the month of July in Boulder. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Boulder in July 2025.
If you’re planning to visit Boulder in the near future, we highly recommend that you review the 14 day weather forecast for Boulder before you arrive.
Temperatures
26° / 15°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
115
mm
Sun Hours
11.8
Hrs
