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Summit County (Breckenridge)
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United States weather

Weather in Summit County, Colorado for August 2026

Your guide to Summit County weather in August - trends and predictions

    Temperatures

  • So far, August 2026 in Summit County is slightly warmer than the historical average by 1.4 °F.

  • The forecast for the next days in Summit County predicts temperatures to be around 20 °F, close to the historical average.

  • In general, the average temperature in Summit County at the beginning of August is 21.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17 °F by the end of August.

    • Rain 🌧️

  • The climate of Summit County in August is notably wet, with an average of 12 rainy days, and a total of 81.6 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
20
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/7°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
53 %
Avg humidity

Summit County Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
21°
2
Patchy rain possible
22°
3
Sunny
21°
4
Light rain shower
22°
5
Light rain shower
21°
6
Thundery outbreaks possible
21°
7
Thundery outbreaks possible
22°
8
Patchy rain possible
20°
9
Patchy light rain with thunder
19°
10
Patchy light rain with thunder
18°
11
Thundery outbreaks possible
19°
12
Sunny
21°
13
Sunny
17°
14
Sunny
17°
15
Patchy rain possible
18°
16
Partly cloudy
19°
17
Patchy rain possible
19°
18
Sunny
20°
19
Patchy rain possible
18°
20
Sunny
19°
21
Sunny
22°
22
Sunny
24°
23
Sunny
21°
24
Sunny
22°
25
Sunny
22°
26
Partly cloudy
15°
27
Patchy light drizzle
17°
28
Patchy rain possible
16°
29
Patchy rain possible
15°
30
Sunny
16°
31
Patchy rain possible
18°

Temperatures trend during August in Summit County

See the weather trend as well as the moving average line

August weather in Summit County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Patchy rain possible
Patchy rain possible
 21° /6° 0 mm 8
Aug. 2 Patchy rain possible
Patchy rain possible
 22° /7° 0 mm 8
Aug. 3 Sunny
Sunny
 21° /7° 0.1 mm 9
Aug. 4 Light rain shower
Light rain shower
 22° /7° 4.6 mm 8
Aug. 5 Light rain shower
Light rain shower
 21° /8° 1.3 mm 8
Aug. 6 Thundery outbreaks possible
Thundery outbreaks possible
 21° /7° 0.2 mm 8
Aug. 7 Thundery outbreaks possible
Thundery outbreaks possible
 22° /9° 0.6 mm 9
Aug. 8 Patchy rain possible
Patchy rain possible
 20° /8° 0.4 mm 8
Aug. 9 Patchy light rain with thunder
Patchy light rain with thunder
 19° /8° 2.6 mm 8
Aug. 10 Patchy light rain with thunder
Patchy light rain with thunder
 18° /7° 1.3 mm 6
Aug. 11 Thundery outbreaks possible
Thundery outbreaks possible
 19° /5° 2.5 mm 7
Aug. 12 Sunny
Sunny
 21° /7° 13.5 mm 8.3
Aug. 13 Sunny
Sunny
 17° /6° 4.8 mm 7.3
Aug. 14 Sunny
Sunny
 17° /6° 9.1 mm 8.7
Aug. 15 Patchy rain possible
Patchy rain possible
 18° /6° 1 mm 9.7
Aug. 16 Partly cloudy
Partly cloudy
 19° /7° 2.8 mm 5
Aug. 17 Patchy rain possible
Patchy rain possible
 19° /7° 2.1 mm 5
Aug. 18 Sunny
Sunny
 20° /7° 0 mm 6
Aug. 19 Patchy rain possible
Patchy rain possible
 18° /9° 0.3 mm 4
Aug. 20 Sunny
Sunny
 19° /5° 2.2 mm 5
Aug. 21 Sunny
Sunny
 22° /5° 0 mm 6
Aug. 22 Sunny
Sunny
 24° /8° 0 mm 6
Aug. 23 Sunny
Sunny
 21° /10° 0.7 mm 6
Aug. 24 Sunny
Sunny
 22° /8° 5 mm 6
Aug. 25 Sunny
Sunny
 22° /8° 1.4 mm 6
Aug. 26 Partly cloudy
Partly cloudy
 15° /6° 8.8 mm 4
Aug. 27 Patchy light drizzle
Patchy light drizzle
 17° /5° 0.2 mm 4
Aug. 28 Patchy rain possible
Patchy rain possible
 16° /6° 2.6 mm 4
Aug. 29 Patchy rain possible
Patchy rain possible
 15° /6° 4.8 mm 4
Aug. 30 Sunny
Sunny
 16° /3° 1.2 mm 4
Aug. 31 Patchy rain possible
Patchy rain possible
 18° /4° 0.2 mm 4
Next
Important Notice
Our weather forecast for Summit County in August 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 Summit County forecast closer to your planned date for the most up-to-date weather information.
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Summit County in August - FAQ

What are the expected maximum and minimum temperatures in Summit County during August?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Summit County during August?
Moderate rainfall is anticipated in Summit County during August, with a total of 81.6 mm spread over approximately 12 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Summit County during August?
The average wind speed in Summit County during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Summit County

Explore the daily rainfall trends and prepare for Summit Countys August weather 💧
Typically, Summit County has 12 rainy days in August with a total of 81.6 mm of rainfall.

UV exposure in Summit County during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Top locations in Summit County
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AkronBreckenridgePark City
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Location coordinates Where is Summit County?

Get accurate weather forecasts for Summit County, located at latitude 39.482 and longitude -106.038. Stay updated with localized weather information tailored for Summit County.

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