Washington County (Zion National Park)
August
Weather in Washington County, Utah for August 2026
Your guide to Washington County weather in August - trends and predictions
Expect cooler weather in first days of August 2026 in Washington County with the forecast suggesting a temperature of 36.5 °C, lower than the historical average.
In general, the average temperature in Washington County at the beginning of August is 30.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.4 °C by the end of August.
The climate of Washington County in August is notably wet, with an average of 13 rainy days, and a total of 63.5 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
18
Dry days
13
Rainy days
0
Snow days
25°/16°
Temperatures
21 km/h
Avg max wind
34 %
Avg humidity
Washington County Weather August
Move between months or click on a day
Temperatures trend during August in Washington County
See the weather trend as well as the moving average line
August weather in Washington County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Sunny | 36° /20° | 0.6 mm | 8 | |
| Aug. 2 | Sunny | 39° /21° | 1.4 mm | 9 | |
| Aug. 3 | Sunny | 28° /18° | 0.6 mm | 7 | |
| Aug. 4 |  Overcast | 27° /17° | 0 mm | 6 | |
| Aug. 5 |  Patchy rain possible | 28° /18° | 0.1 mm | 7 | |
| Aug. 6 |  Moderate or heavy rain shower | 29° /19° | 1.5 mm | 7 | |
| Aug. 7 | Moderate rain at times | 28° /19° | 0.4 mm | 7 | |
| Aug. 8 | Moderate or heavy rain shower | 27° /18° | 1.4 mm | 6 | |
| Aug. 9 | Moderate or heavy rain shower | 26° /17° | 2 mm | 6 | |
| Aug. 10 |  Cloudy | 27° /18° | 0 mm | 6 | |
| Aug. 11 | Moderate or heavy rain shower | 26° /16° | 3.8 mm | 6 | |
| Aug. 12 | Moderate or heavy rain shower | 26° /15° | 5.5 mm | 7 | |
| Aug. 13 | Moderate or heavy rain shower | 26° /18° | 3 mm | 7 | |
| Aug. 14 | Sunny | 26° /17° | 0 mm | 6 | |
| Aug. 15 | Sunny | 25° /16° | 0 mm | 7 | |
| Aug. 16 | Sunny | 24° /15° | 0 mm | 7 | |
| Aug. 17 | Moderate or heavy rain shower | 24° /15° | 5.9 mm | 6 | |
| Aug. 18 | Moderate rain at times | 24° /15° | 1.4 mm | 6 | |
| Aug. 19 |  Heavy rain at times | 26° /17° | 0.6 mm | 6 | |
| Aug. 20 | Sunny | 25° /16° | 0 mm | 7 | |
| Aug. 21 | Sunny | 27° /19° | 0 mm | 7 | |
| Aug. 22 | Moderate or heavy rain shower | 25° /17° | 2.1 mm | 6 | |
| Aug. 23 | Moderate or heavy rain shower | 24° /16° | 22 mm | 5 | |
| Aug. 24 | Sunny | 22° /16° | 1.1 mm | 5 | |
| Aug. 25 | Sunny | 22° /14° | 0.2 mm | 6 | |
| Aug. 26 | Sunny | 21° /10° | 9.6 mm | 6 | |
| Aug. 27 | Sunny | 21° /11° | 0.6 mm | 5 | |
| Aug. 28 | Sunny | 22° /15° | 0 mm | 6 | |
| Aug. 29 | Sunny | 22° /13° | 1.2 mm | 6 | |
| Aug. 30 | Patchy rain possible | 24° /15° | 0.1 mm | 6 | |
| Aug. 31 | Patchy rain possible | 25° /18° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Washington 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 Washington County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Washington County in August - FAQ
What are the expected maximum and minimum temperatures in Washington County during August?
During August, expect a variety of temperatures with highs around 25° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Washington County during August?
Moderate rainfall is anticipated in Washington County during August, with a total of 63.5 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Washington County during August?
The average wind speed in Washington County during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Washington County
Explore the daily rainfall trends and prepare for Washington Countys August weather 💧
Typically, Washington County has 13 rainy days in August with a total of 63.5 mm of rainfall.
UV exposure in Washington County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Top locations in Washington County
Select a location for an accurate weather forecast
More Locations Quick links
More Washington County weather pages
You are here
Where is Washington County?Get accurate weather forecasts for Washington County, located at latitude 37.298 and longitude -113.026. Stay updated with localized weather information tailored for Washington County.
Found a mistake?
We appreciate your attention to details. Tell us here.