McKinney
September
Weather in McKinney for September 2025
Your guide to McKinney weather in September - trends and predictions
In general, the average temperature in McKinney at the beginning of September is 35 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 33.7 °F by the end of September.
The climate of McKinney in September is notably wet, with an average of 11 rainy days, and a total of 68.1 mm of precipitation.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
19
Dry days
11
Rainy days
0
Snow days
34°/20°
Temperatures
22 km/h
Avg max wind
53 %
Avg humidity
McKinney in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  35° | 2  36° | 3  32° | 4 31° | 5 35° | 6 38° | 7  38° |
| 8 38° | 9  35° | 10 35° | 11 31° | 12  31° | 13 32° | 14 34° |
| 15  33° | 16 33° | 17  35° | 18 36° | 19 36° | 20 37° | 21 38° |
| 22 34° | 23 32° | 24 35° | 25 31° | 26 33° | 27 33° | 28 34° |
| 29 35° | 30 35° |
You can click on date
Access McKinney weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in McKinney
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Partly cloudy | 35° /21° | 0.9 mm | 8 | |
| Sept. 2 | Cloudy | 36° /21° | 0.6 mm | 8 | |
| Sept. 3 | Thundery outbreaks possible | 32° /21° | 2.9 mm | 7 | |
| Sept. 4 | Thundery outbreaks possible | 31° /21° | 2.1 mm | 7 | |
| Sept. 5 | Partly cloudy | 35° /21° | 0.7 mm | 8 | |
| Sept. 6 | Thundery outbreaks possible | 38° /24° | 0 mm | 9 | |
| Sept. 7 | Fog | 38° /22° | 0.1 mm | 9 | |
| Sept. 8 | Cloudy | 38° /21° | 0.1 mm | 9 | |
| Sept. 9 | Patchy rain possible | 35° /19° | 0.8 mm | 8 | |
| Sept. 10 | Partly cloudy | 35° /17° | 0 mm | 9 | |
| Sept. 11 | Light rain shower | 31° /20° | 2.4 mm | 7 | |
| Sept. 12 | Torrential rain shower | 31° /20° | 32.2 mm | 7 | |
| Sept. 13 | Cloudy | 32° /20° | 0 mm | 8 | |
| Sept. 14 | Mist | 34° /20° | 2.8 mm | 8 | |
| Sept. 15 | Overcast | 33° /21° | 1.2 mm | 7 | |
| Sept. 16 | Partly cloudy | 33° /20° | 0.6 mm | 8 | |
| Sept. 17 | Sunny | 35° /18° | 0 mm | 8 | |
| Sept. 18 | Sunny | 36° /21° | 0 mm | 9 | |
| Sept. 19 | Overcast | 36° /20° | 0 mm | 9 | |
| Sept. 20 | Patchy rain possible | 37° /21° | 0.8 mm | 9 | |
| Sept. 21 | Thundery outbreaks possible | 38° /22° | 1.1 mm | 9 | |
| Sept. 22 | Light rain shower | 34° /22° | 4.4 mm | 8 | |
| Sept. 23 | Thundery outbreaks possible | 32° /23° | 7.1 mm | 7 | |
| Sept. 24 | Thundery outbreaks possible | 35° /22° | 3.5 mm | 8 | |
| Sept. 25 | Light rain shower | 31° /20° | 3.8 mm | 7 | |
| Sept. 26 | Mist | 33° /16° | 0 mm | 8 | |
| Sept. 27 | Sunny | 33° /16° | 0 mm | 9 | |
| Sept. 28 | Partly cloudy | 34° /19° | 0 mm | 9 | |
| Sept. 29 | Sunny | 35° /19° | 0 mm | 8 | |
| Sept. 30 | Sunny | 35° /19° | 0 mm | 9 | |
| Next | |||||
Important Notice
Our weather forecast for McKinney in September 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 McKinney forecast closer to your planned date for the most up-to-date weather information.
McKinney in September - FAQ
What are the expected maximum and minimum temperatures in McKinney during September?
Expect warm days with temperatures around 34°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in McKinney during September?
Moderate rainfall is anticipated in McKinney during September, with a total of 68.1 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in McKinney during September?
The average wind speed in McKinney during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in McKinney
Explore the daily rainfall trends and prepare for McKinneys September weather 💧
UV exposure in McKinney during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
You are here
Where is McKinney?Get accurate weather forecasts for McKinney, located at latitude 33.198 and longitude -96.615. Stay updated with localized weather information tailored for McKinney.
Found a mistake?
We appreciate your attention to details. Tell us here.