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Weather in Boulder County for July 2025

Your guide to Boulder County weather in July - trends and predictions

    Temperatures

  • In general, the average temperature in Boulder County at the beginning of July is 26.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.3 °F by the end of July.

  • Rain 🌧️

  • Boulder County experiences moderate rainfall in July, with an average of 10 rainy days and a total precipitation of 37.1 mm.

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Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/15°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
34 %
Avg humidity

Boulder County Weather July

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Temperatures trend during July in Boulder County

See the weather trend as well as the moving average line

July weather day by day

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Date Weather Temperatures Rain UV More
Jul. 1 Cloudy
Cloudy
28° /18° 0 mm 6
Jul. 2 Cloudy
Cloudy
28° /15° 1.2 mm 6
Jul. 3 Sunny
Sunny
30° /14° 0 mm 8
Jul. 4 Partly cloudy
Partly cloudy
25° /12° 0 mm 7
Jul. 5 Partly cloudy
Partly cloudy
25° /12° 0 mm 7
Jul. 6 Sunny
Sunny
29° /14° 0 mm 7
Jul. 7 Patchy rain possible
Patchy rain possible
20° /12° 0.6 mm 5
Jul. 8 Sunny
Sunny
25° /10° 0 mm 7
Jul. 9 Cloudy
Cloudy
27° /13° 0 mm 6
Jul. 10 Overcast
Overcast
29° /14° 0 mm 6
Jul. 11 Cloudy
Cloudy
31° /15° 0 mm 7
Jul. 12 Sunny
Sunny
34° /18° 0 mm 8
Jul. 13 Cloudy
Cloudy
34° /18° 0 mm 7
Jul. 14 Partly cloudy
Partly cloudy
33° /19° 0 mm 8
Jul. 15 Patchy rain possible
Patchy rain possible
31° /19° 0.7 mm 7
Jul. 16 Moderate rain at times
Moderate rain at times
28° /17° 1 mm 6
Jul. 17 Patchy rain possible
Patchy rain possible
27° /15° 0.1 mm 6
Jul. 18 Moderate or heavy rain shower
Moderate or heavy rain shower
28° /13° 5.8 mm 6
Jul. 19 Overcast
Overcast
26° /16° 0.9 mm 6
Jul. 20 Moderate rain at times
Moderate rain at times
27° /15° 5.3 mm 6
Jul. 21 Moderate or heavy rain shower
Moderate or heavy rain shower
21° /13° 15 mm 5
Jul. 22 Overcast
Overcast
25° /13° 0.2 mm 6
Jul. 23 Sunny
Sunny
28° /14° 0 mm 7
Jul. 24 Overcast
Overcast
29° /16° 0 mm 6
Jul. 25 Sunny
Sunny
33° /17° 0 mm 8
Jul. 26 Moderate or heavy rain shower
Moderate or heavy rain shower
29° /19° 3.7 mm 6
Jul. 27 Moderate or heavy rain shower
Moderate or heavy rain shower
27° /16° 2.6 mm 6
Jul. 28 Sunny
Sunny
32° /16° 0 mm 8
Jul. 29 Sunny
Sunny
33° /16° 0 mm 8
Jul. 30 Sunny
Sunny
33° /16° 0.1 mm 8
Jul. 31 Sunny
Sunny
32° /18° 0 mm 8
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Important Notice
Our weather forecast for Boulder County in July is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Boulder County forecast closer to your planned date for the most up-to-date weather information.

Boulder County in July - FAQ

What are the expected maximum and minimum temperatures in Boulder County during July?
During July, expect a variety of temperatures with highs around 29° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Boulder County during July?
In July, Boulder County can expect light to moderate rainfall, totaling 37.1 mm across approximately 10 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Boulder County during July?
The average wind speed in Boulder County during July is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

July rainfall patterns in Boulder County

Explore the daily rainfall trends and prepare for Boulder Countys July weather 💧

UV exposure in Boulder County during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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Location coordinates Where is Boulder County?

Get accurate weather forecasts for Boulder County, located at latitude 40.015 and longitude -105.271. Stay updated with localized weather information tailored for Boulder County.

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