Grand County (Moab)
August
Weather in Grand County, Utah for August 2026
Your guide to Grand County weather in August - trends and predictions
So far, August 2026 in Grand County is slightly warmer than the historical average by 1.3 °F.
Expect cooler weather in the next days in Grand County with the forecast suggesting a temperature of 33.5 °F, lower than the historical average.
In general, the average temperature in Grand County at the beginning of August is 36.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 29 °F by the end of August.
Grand County experiences moderate rainfall in August, with an average of 8 rainy days and a total precipitation of 18.8 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
32°/18°
Temperatures
25 km/h
Avg max wind
30 %
Avg humidity
Grand County Weather August
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Temperatures trend during August in Grand County
See the weather trend as well as the moving average line
August weather in Grand County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Sunny | 37° /19° | 0 mm | 10 | |
| Aug. 2 | Sunny | 37° /20° | 0 mm | 10 | |
| Aug. 3 | Sunny | 36° /20° | 0 mm | 10 | |
| Aug. 4 |  Moderate or heavy rain shower | 37° /20° | 0.8 mm | 10 | |
| Aug. 5 | Sunny | 37° /19° | 0 mm | 10 | |
| Aug. 6 | Sunny | 37° /20° | 0 mm | 10 | |
| Aug. 7 | Sunny | 37° /20° | 0 mm | 10 | |
| Aug. 8 | Sunny | 37° /20° | 0.1 mm | 10 | |
| Aug. 9 | Sunny | 41° /24° | 0 mm | 8.2 | |
| Aug. 10 | Sunny | 36° /23° | 0 mm | 9.2 | |
| Aug. 11 | Sunny | 37° /21° | 0 mm | 9 | |
| Aug. 12 | Sunny | 34° /22° | 0.4 mm | 8.3 | |
| Aug. 13 | Sunny | 32° /21° | 0.3 mm | 9 | |
| Aug. 14 |  Patchy rain possible | 31° /21° | 0.9 mm | 8 | |
| Aug. 15 | Sunny | 33° /18° | 0 mm | 8 | |
| Aug. 16 | Sunny | 33° /20° | 0 mm | 8 | |
| Aug. 17 | Sunny | 34° /21° | 0 mm | 8 | |
| Aug. 18 | Sunny | 33° /17° | 0 mm | 8 | |
| Aug. 19 |  Partly cloudy | 29° /20° | 0.1 mm | 7 | |
| Aug. 20 | Patchy rain possible | 32° /18° | 1.2 mm | 8 | |
| Aug. 21 | Patchy rain possible | 30° /19° | 4.3 mm | 7 | |
| Aug. 22 | Sunny | 34° /18° | 0 mm | 8 | |
| Aug. 23 |  Heavy rain at times | 32° /18° | 1.6 mm | 7 | |
| Aug. 24 |  Overcast | 31° /19° | 0 mm | 7 | |
| Aug. 25 | Moderate or heavy rain shower | 29° /20° | 1.5 mm | 7 | |
| Aug. 26 | Sunny | 27° /16° | 2.9 mm | 7 | |
| Aug. 27 | Sunny | 30° /17° | 0 mm | 7 | |
| Aug. 28 | Sunny | 30° /17° | 0 mm | 7 | |
| Aug. 29 | Sunny | 27° /17° | 0 mm | 7 | |
| Aug. 30 | Sunny | 29° /14° | 0 mm | 8 | |
| Aug. 31 | Sunny | 31° /16° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Grand 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 Grand County forecast closer to your planned date for the most up-to-date weather information.
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Grand County in August - FAQ
What are the expected maximum and minimum temperatures in Grand County during August?
Expect warm days with temperatures around 32°, cooling to mild conditions of 18° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Grand County during August?
Expect minimal rainfall in Grand County during August, with a total of 18.8 mm over approximately 8 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Grand County during August?
The average wind speed in Grand County during August is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Grand County
Explore the daily rainfall trends and prepare for Grand Countys August weather 💧
Typically, Grand County has 8 rainy days in August with a total of 18.8 mm of rainfall.
UV exposure in Grand County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Where is Grand County?Get accurate weather forecasts for Grand County, located at latitude 38.573 and longitude -109.55. Stay updated with localized weather information tailored for Grand County.
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