Arlington
September
Weather in Arlington for September 2025
Your guide to Arlington weather in September - trends and predictions
In general, the average temperature in Arlington at the beginning of September is 35.6 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 33.9 °F by the end of September.
Arlington sees moderate rainfall in September, averaging 8 rainy days.
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22
Dry days
8
Rainy days
0
Snow days
37°/23°
Temperatures
21 km/h
Avg max wind
48 %
Avg humidity
Arlington in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  35° | 2  36° | 3  33° | 4 33° | 5  36° | 6 38° | 7 38° |
| 8 38° | 9 36° | 10 35° | 11  32° | 12  32° | 13 33° | 14  33° |
| 15 32° | 16 33° | 17 35° | 18 36° | 19 37° | 20 38° | 21  35° |
| 22 35° | 23 33° | 24 37° | 25 29° | 26 34° | 27 34° | 28 34° |
| 29 34° | 30 35° |
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Temperatures trend during September in Arlington
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Sunny | 35° /24° | 1.3 mm | 8 | |
| Sept. 2 | Cloudy | 36° /24° | 0.8 mm | 8 | |
| Sept. 3 | Patchy light rain with thunder | 33° /23° | 4.3 mm | 8 | |
| Sept. 4 | Sunny | 33° /23° | 1.4 mm | 8 | |
| Sept. 5 | Partly cloudy | 36° /22° | 0.2 mm | 9 | |
| Sept. 6 | Partly cloudy | 38° /25° | 0 mm | 9 | |
| Sept. 7 | Sunny | 38° /25° | 0 mm | 9 | |
| Sept. 8 | Sunny | 38° /24° | 0.2 mm | 10 | |
| Sept. 9 | Sunny | 36° /21° | 0 mm | 9 | |
| Sept. 10 | Cloudy | 35° /21° | 0 mm | 8 | |
| Sept. 11 | Light rain shower | 32° /22° | 1.2 mm | 7 | |
| Sept. 12 | Heavy rain | 32° /21° | 23.5 mm | 8 | |
| Sept. 13 | Light rain shower | 33° /23° | 0.6 mm | 8 | |
| Sept. 14 | Overcast | 33° /23° | 0.2 mm | 8 | |
| Sept. 15 | Cloudy | 32° /23° | 0.4 mm | 8 | |
| Sept. 16 | Cloudy | 33° /21° | 0.4 mm | 8 | |
| Sept. 17 | Sunny | 35° /21° | 0.2 mm | 9 | |
| Sept. 18 | Partly cloudy | 36° /23° | 0 mm | 9 | |
| Sept. 19 | Partly cloudy | 37° /23° | 0 mm | 9 | |
| Sept. 20 | Sunny | 38° /22° | 0.1 mm | 9 | |
| Sept. 21 | Thundery outbreaks possible | 35° /24° | 0 mm | 9 | |
| Sept. 22 | Thundery outbreaks possible | 35° /22° | 0.1 mm | 8 | |
| Sept. 23 | Thundery outbreaks possible | 33° /23° | 2.3 mm | 7 | |
| Sept. 24 | Thundery outbreaks possible | 37° /24° | 0.9 mm | 8 | |
| Sept. 25 | Thundery outbreaks possible | 29° /22° | 0.9 mm | 7 | |
| Sept. 26 | Partly cloudy | 34° /20° | 0 mm | 9 | |
| Sept. 27 | Partly cloudy | 34° /21° | 0 mm | 9 | |
| Sept. 28 | Partly cloudy | 34° /21° | 0 mm | 8 | |
| Sept. 29 | Sunny | 34° /21° | 0 mm | 8 | |
| Sept. 30 | Sunny | 35° /21° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Arlington 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 Arlington forecast closer to your planned date for the most up-to-date weather information.
Arlington in September - FAQ
What are the expected maximum and minimum temperatures in Arlington during September?
With daytime temperatures soaring above 37° and not dropping much below 23° at night, September in Arlington is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in Arlington during September?
Moderate rainfall is anticipated in Arlington during September, with a total of 57.3 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Arlington during September?
The average wind speed in Arlington during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
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