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Mesa County (Grand Junction)
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United States weather

Weather in Mesa County, Colorado for August 2026

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

    Temperatures

  • In general, the average temperature in Mesa County at the beginning of August is 34.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 27.1 °F by the end of August.

    • Rain 🌧️

  • Precipitation in Mesa County during August is a rare event, with an average of fewer than 2 rainy days.

    • More

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Average dry days
30
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
32°/13°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
31 %
Avg humidity

Mesa County Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
32°
2
Partly cloudy
33°
3
Sunny
34°
4
Overcast
35°
5
Cloudy
33°
6
Partly cloudy
36°
7
Partly cloudy
36°
8
Cloudy
35°
9
Overcast
31°
10
Overcast
30°
11
Sunny
32°
12
Sunny
34°
13
Sunny
35°
14
Cloudy
35°
15
Cloudy
31°
16
Cloudy
29°
17
Sunny
32°
18
Sunny
34°
19
Sunny
37°
20
Sunny
37°
21
Sunny
37°
22
Sunny
37°
23
Overcast
34°
24
Cloudy
30°
25
Overcast
30°
26
Light rain shower
23°
27
Thundery outbreaks possible
27°
28
Overcast
28°
29
Overcast
23°
30
Sunny
28°
31
Sunny
31°

Temperatures trend during August in Mesa County

See the weather trend as well as the moving average line

August weather in Mesa County day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Sunny
Sunny
 32° /12° 0 mm 8
Aug. 2 Partly cloudy
Partly cloudy
 33° /12° 0 mm 8
Aug. 3 Sunny
Sunny
 34° /13° 0 mm 8
Aug. 4 Overcast
Overcast
 35° /11° 0 mm 8
Aug. 5 Cloudy
Cloudy
 33° /12° 0 mm 7
Aug. 6 Partly cloudy
Partly cloudy
 36° /14° 0 mm 9
Aug. 7 Partly cloudy
Partly cloudy
 36° /13° 0 mm 9
Aug. 8 Cloudy
Cloudy
 35° /15° 0 mm 8
Aug. 9 Overcast
Overcast
 31° /14° 0 mm 7
Aug. 10 Overcast
Overcast
 30° /14° 0 mm 7
Aug. 11 Sunny
Sunny
 32° /11° 0 mm 8
Aug. 12 Sunny
Sunny
 34° /10° 0 mm 8
Aug. 13 Sunny
Sunny
 35° /11° 0 mm 9
Aug. 14 Cloudy
Cloudy
 35° /12° 0 mm 8
Aug. 15 Cloudy
Cloudy
 31° /13° 0 mm 7
Aug. 16 Cloudy
Cloudy
 29° /11° 0 mm 6
Aug. 17 Sunny
Sunny
 32° /11° 0 mm 8
Aug. 18 Sunny
Sunny
 34° /11° 0 mm 8
Aug. 19 Sunny
Sunny
 37° /12° 0 mm 9
Aug. 20 Sunny
Sunny
 37° /12° 0 mm 9
Aug. 21 Sunny
Sunny
 37° /13° 0 mm 9
Aug. 22 Sunny
Sunny
 37° /15° 0 mm 9
Aug. 23 Overcast
Overcast
 34° /17° 0 mm 7
Aug. 24 Cloudy
Cloudy
 30° /16° 0 mm 7
Aug. 25 Overcast
Overcast
 30° /17° 0 mm 7
Aug. 26 Light rain shower
Light rain shower
 23° /15° 3.8 mm 5
Aug. 27 Thundery outbreaks possible
Thundery outbreaks possible
 27° /15° 0 mm 6
Aug. 28 Overcast
Overcast
 28° /16° 0 mm 6
Aug. 29 Overcast
Overcast
 23° /15° 0 mm 5
Aug. 30 Sunny
Sunny
 28° /9° 0 mm 7
Aug. 31 Sunny
Sunny
 31° /9° 0 mm 8
Next
Important Notice
Our weather forecast for Mesa 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 Mesa County forecast closer to your planned date for the most up-to-date weather information.
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Mesa County in August - FAQ

What are the expected maximum and minimum temperatures in Mesa County during August?
Expect warm days with temperatures around 32°, cooling to mild conditions of 13° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Mesa County during August?
Rainfall in Mesa County during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Mesa County during August?
The average wind speed in Mesa County during August is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Mesa County

Explore the daily rainfall trends and prepare for Mesa Countys August weather 💧

UV exposure in Mesa County during August

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

Get accurate weather forecasts for Mesa County, located at latitude 39.064 and longitude -108.551. Stay updated with localized weather information tailored for Mesa County.

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