Plano (TX)
September
Weather in Plano, Texas for September 2026
Your guide to Plano weather in September - trends and predictions
So far, September 2026 in Plano shows a warmer trend than usual by 2.5 °F.
The forecast for the next days in Plano predicts temperatures to be around 34 °F, close to the historical average.
In general, the average temperature in Plano at the beginning of September is 35.1 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 32.3 °F by the end of September.
The climate of Plano in September is notably wet, with an average of 13 rainy days, and a total of 88.8 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
13
Rainy days
0
Snow days
34°/22°
Temperatures
20 km/h
Avg max wind
52 %
Avg humidity
Plano Weather September
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Temperatures trend during September in Plano
See the weather trend as well as the moving average line
September weather in Plano day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 36° /23° | 0.3 mm | 9 | |
| Sept. 2 |  Cloudy | 35° /24° | 3.5 mm | 8 | |
| Sept. 3 |  Thundery outbreaks possible | 33° /23° | 2 mm | 7 | |
| Sept. 4 |  Sunny | 35° /23° | 0.9 mm | 9 | |
| Sept. 5 | Partly cloudy | 37° /24° | 0.3 mm | 9 | |
| Sept. 6 | Thundery outbreaks possible | 35° /23° | 6.6 mm | 8 | |
| Sept. 7 | Sunny | 35° /23° | 0 mm | 9 | |
| Sept. 8 | Sunny | 37° /23° | 0.1 mm | 9 | |
| Sept. 9 | Sunny | 35° /21° | 0.1 mm | 9 | |
| Sept. 10 | Sunny | 36° /20° | 3.8 mm | 9 | |
| Sept. 11 |  Light rain shower | 34° /22° | 1.9 mm | 8 | |
| Sept. 12 |  Moderate or heavy rain shower | 35° /22° | 14.5 mm | 8 | |
| Sept. 13 | Cloudy | 34° /24° | 0 mm | 9 | |
| Sept. 14 |  Overcast | 35° /23° | 1.3 mm | 8 | |
| Sept. 15 | Cloudy | 34° /24° | 0.9 mm | 8 | |
| Sept. 16 | Partly cloudy | 35° /24° | 0.4 mm | 9 | |
| Sept. 17 | Overcast | 36° /28° | 0 mm | 8.1 | |
| Sept. 18 | Sunny | 37° /28° | 0 mm | 8 | |
| Sept. 19 | Sunny | 36° /27° | 0 mm | 8.3 | |
| Sept. 20 | Overcast | 36° /27° | 0 mm | 8.1 | |
| Sept. 21 | Sunny | 36° /26° | 0 mm | 8.5 | |
| Sept. 22 | Sunny | 35° /25° | 6.3 mm | 9 | |
| Sept. 23 | Overcast | 36° /28° | 0 mm | 9 | |
| Sept. 24 | Patchy rain possible | 33° /21° | 3.5 mm | 8 | |
| Sept. 25 | Sunny | 32° /21° | 0 mm | 8 | |
| Sept. 26 | Sunny | 31° /21° | 0 mm | 8 | |
| Sept. 27 | Sunny | 31° /19° | 0 mm | 8 | |
| Sept. 28 | Sunny | 32° /21° | 0 mm | 8 | |
| Sept. 29 | Sunny | 33° /21° | 0 mm | 8 | |
| Sept. 30 | Sunny | 34° /22° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Plano 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 Plano forecast closer to your planned date for the most up-to-date weather information.
Change Month
Plano in September - FAQ
What are the expected maximum and minimum temperatures in Plano during September?
During September, expect a variety of temperatures with highs around 34° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Plano during September?
Moderate rainfall is anticipated in Plano during September, with a total of 88.8 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Plano during September?
The average wind speed in Plano during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Plano
Explore the daily rainfall trends and prepare for Planos September weather 💧
Typically, Plano has 13 rainy days in September with a total of 88.8 mm of rainfall.
UV exposure in Plano during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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