Lewisville (TX)
September
Weather in Lewisville, Texas for September 2026
Your guide to Lewisville weather in September - trends and predictions
In general, the average temperature in Lewisville at the beginning of September is 31.3 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 31 °C by the end of September.
Lewisville experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 70 mm.
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Temperatures
Rain 🌧️
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22
Dry days
8
Rainy days
0
Snow days
33°/22°
Temperatures
18 km/h
Avg max wind
53 %
Avg humidity
Lewisville Weather September
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Temperatures trend during September in Lewisville
See the weather trend as well as the moving average line
September weather in Lewisville 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 | Patchy rain possible | 35° /24° | 1 mm | 8 | |
| Sept. 16 | Sunny | 35° /23° | 0 mm | 9 | |
| Sept. 17 | Sunny | 36° /23° | 0 mm | 9 | |
| Sept. 18 |  Cloudy | 36° /26° | 0 mm | 8 | |
| Sept. 19 |  Overcast | 36° /25° | 0.9 mm | 8 | |
| Sept. 20 | Sunny | 37° /24° | 0 mm | 9 | |
| Sept. 21 | Sunny | 36° /25° | 0 mm | 8 | |
| Sept. 22 | Cloudy | 35° /24° | 0 mm | 8 | |
| Sept. 23 | Light rain shower | 31° /23° | 20.2 mm | 7 | |
| Sept. 24 | Overcast | 31° /22° | 20.6 mm | 7 | |
| Sept. 25 | Overcast | 29° /19° | 0 mm | 6 | |
| Sept. 26 | Sunny | 31° /18° | 0 mm | 8 | |
| Sept. 27 | Sunny | 31° /18° | 0 mm | 8 | |
| Sept. 28 | Partly cloudy | 32° /17° | 0 mm | 8 | |
| Sept. 29 | Overcast | 31° /18° | 0 mm | 7 | |
| Sept. 30 | Sunny | 32° /19° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Lewisville 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 Lewisville forecast closer to your planned date for the most up-to-date weather information.
Change Month
Lewisville in September - FAQ
What are the expected maximum and minimum temperatures in Lewisville during September?
During September, expect a variety of temperatures with highs around 33° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lewisville during September?
Moderate rainfall is anticipated in Lewisville during September, with a total of 70 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Lewisville during September?
The average wind speed in Lewisville during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Lewisville
Explore the daily rainfall trends and prepare for Lewisvilles September weather 💧
Typically, Lewisville has 8 rainy days in September with a total of 70 mm of rainfall.
UV exposure in Lewisville during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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