Denton County (Lewisville)
September
Weather in Denton County, Texas for September 2025
Your guide to Denton County weather in September - trends and predictions
So far, September 2025 in Denton County is slightly warmer than the historical average by 0.8 °F.
The forecast for the upcoming days in Denton County predicts a temperature of 35.3 °F, which is slightly above the historical average.
In general, the average temperature in Denton County at the beginning of September is 31.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 34.4 °F by the end of September.
Denton County experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 41.5 mm.
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Temperatures
Rain 🌧️
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21
Dry days
9
Rainy days
0
Snow days
32°/22°
Temperatures
19 km/h
Avg max wind
51 %
Avg humidity
Denton County Weather September
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Temperatures trend during September in Denton County
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September weather in Denton County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 32° /23° | 4.1 mm | 7 | |
| Sept. 2 |  Light drizzle | 32° /24° | 7.1 mm | 7 | |
| Sept. 3 | Light rain shower | 29° /20° | 2.1 mm | 7 | |
| Sept. 4 | Patchy rain possible | 32° /21° | 1.1 mm | 7 | |
| Sept. 5 | Light rain shower | 34° /22° | 0.7 mm | 8 | |
| Sept. 6 |  Partly cloudy | 31° /20° | 11.2 mm | 8 | |
| Sept. 7 |  Sunny | 29° /21° | 0 mm | 7 | |
| Sept. 8 | Sunny | 31° /18° | 0 mm | 8 | |
| Sept. 9 | Sunny | 32° /18° | 0 mm | 8 | |
| Sept. 10 | Sunny | 34° /20° | 0 mm | 9 | |
| Sept. 11 | Light rain shower | 33° /22° | 0.6 mm | 8 | |
| Sept. 12 | Partly cloudy | 35° /23° | 0.1 mm | 9 | |
| Sept. 13 | Sunny | 36° /24° | 0 mm | 9 | |
| Sept. 14 | Patchy rain possible | 36° /24° | 0.3 mm | 8 | |
| Sept. 15 | Sunny | 38° /25° | 0 mm | 1.8 | |
| Sept. 16 | Sunny | 37° /24° | 0 mm | 1.8 | |
| Sept. 17 | Sunny | 38° /25° | 0 mm | 1.8 | |
| Sept. 18 | Sunny | 35° /25° | 0 mm | 1.8 | |
| Sept. 19 | Patchy rain possible | 35° /26° | 0.3 mm | 1.7 | |
| Sept. 20 | Sunny | 35° /26° | 0 mm | 0 | |
| Sept. 21 | Sunny | 36° /26° | 0 mm | 8 | |
| Sept. 22 | Partly cloudy | 32° /25° | 0 mm | 7 | |
| Sept. 23 |  Cloudy | 34° /26° | 0 mm | 6 | |
| Sept. 24 | Sunny | 35° /26° | 0 mm | 8 | |
| Sept. 25 | Sunny | 36° /27° | 0 mm | 8 | |
| Sept. 26 | Sunny | 36° /27° | 0 mm | 8 | |
| Sept. 27 | Partly cloudy | 36° /27° | 0.1 mm | 8 | |
| Sept. 28 | Patchy rain possible | 31° /26° | 1.5 mm | 6 | |
| Sept. 29 |  Overcast | 33° /17° | 0 mm | 7 | |
| Sept. 30 | Sunny | 34° /17° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Denton County 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 Denton County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Denton County in September - FAQ
What are the expected maximum and minimum temperatures in Denton County during September?
During September, expect a variety of temperatures with highs around 32° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Denton County during September?
In September, Denton County can expect light to moderate rainfall, totaling 41.5 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Denton County during September?
The average wind speed in Denton County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Denton County
Explore the daily rainfall trends and prepare for Denton Countys September weather 💧
UV exposure in Denton County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Denton County?Get accurate weather forecasts for Denton County, located at latitude 33.046 and longitude -96.994. Stay updated with localized weather information tailored for Denton County.
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