Collin County (Plano)
August
Weather in Collin County for August 2025
Your guide to Collin County weather in August - trends and predictions
In general, the average temperature in Collin County at the beginning of August is 40.4 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 37.6 °F by the end of August.
With an average of 5 rainy days, Collin County experiences minimal rainfall in August.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
26
Dry days
5
Rainy days
0
Snow days
39°/28°
Temperatures
22 km/h
Avg max wind
37 %
Avg humidity
Collin County in August average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  40° | 2  41° | 3 41° | ||||
| 4 40° | 5 40° | 6 41° | 7  40° | 8  40° | 9  39° | 10 39° |
| 11 39° | 12 40° | 13 40° | 14  39° | 15 37° | 16 38° | 17 41° |
| 18 43° | 19 42° | 20 42° | 21 40° | 22 39° | 23 39° | 24 40° |
| 25 41° | 26 40° | 27 40° | 28 36° | 29 35° | 30 35° | 31 36° |
You can click on date
Access Collin County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during August in Collin County
See the weather trend as well as the moving average line
August weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Sunny | 40° /27° | 0 mm | 10 | |
| Aug. 2 | Partly cloudy | 41° /29° | 0 mm | 10 | |
| Aug. 3 | Sunny | 41° /28° | 0.6 mm | 10 | |
| Aug. 4 | Sunny | 40° /27° | 0 mm | 10 | |
| Aug. 5 | Sunny | 40° /28° | 0 mm | 10 | |
| Aug. 6 | Sunny | 41° /28° | 0 mm | 10 | |
| Aug. 7 | Overcast | 40° /29° | 0 mm | 9 | |
| Aug. 8 | Moderate rain at times | 40° /28° | 2.2 mm | 9 | |
| Aug. 9 | Cloudy | 39° /26° | 3 mm | 9 | |
| Aug. 10 | Sunny | 39° /27° | 1.3 mm | 9 | |
| Aug. 11 | Partly cloudy | 39° /27° | 2.1 mm | 9 | |
| Aug. 12 | Sunny | 40° /27° | 0 mm | 10 | |
| Aug. 13 | Sunny | 40° /27° | 0 mm | 10 | |
| Aug. 14 | Patchy rain possible | 39° /28° | 0.1 mm | 9 | |
| Aug. 15 | Partly cloudy | 37° /26° | 0 mm | 9 | |
| Aug. 16 | Sunny | 38° /25° | 0.1 mm | 9 | |
| Aug. 17 | Partly cloudy | 41° /26° | 0.7 mm | 10 | |
| Aug. 18 | Sunny | 43° /29° | 0 mm | 10 | |
| Aug. 19 | Sunny | 42° /30° | 0.1 mm | 10 | |
| Aug. 20 | Sunny | 42° /29° | 0.1 mm | 10 | |
| Aug. 21 | Partly cloudy | 40° /27° | 0 mm | 10 | |
| Aug. 22 | Partly cloudy | 39° /27° | 0 mm | 9 | |
| Aug. 23 | Partly cloudy | 39° /28° | 0.1 mm | 9 | |
| Aug. 24 | Sunny | 40° /28° | 0 mm | 10 | |
| Aug. 25 | Partly cloudy | 41° /29° | 0 mm | 9 | |
| Aug. 26 | Sunny | 40° /29° | 0 mm | 9 | |
| Aug. 27 | Sunny | 40° /28° | 0.2 mm | 10 | |
| Aug. 28 | Cloudy | 36° /25° | 2.4 mm | 8 | |
| Aug. 29 | Overcast | 35° /25° | 0.1 mm | 8 | |
| Aug. 30 | Cloudy | 35° /23° | 0 mm | 8 | |
| Aug. 31 | Overcast | 36° /24° | 0 mm | 8 | |
| Next | |||||
Important Notice
Our weather forecast for Collin 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 Collin County forecast closer to your planned date for the most up-to-date weather information.
Collin County in August - FAQ
What are the expected maximum and minimum temperatures in Collin County during August?
With daytime temperatures soaring above 39° and not dropping much below 28° at night, August in Collin County is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Collin County during August?
Expect minimal rainfall in Collin County during August, with a total of 12.9 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Collin County during August?
The average wind speed in Collin County during August is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Collin County
Explore the daily rainfall trends and prepare for Collin Countys August weather 💧
UV exposure in Collin County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
Top locations in Collin County
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Collin County?Get accurate weather forecasts for Collin County, located at latitude 33.02 and longitude -96.699. Stay updated with localized weather information tailored for Collin County.
Found a mistake?
We appreciate your attention to details. Tell us here.