Sterling (VA)
September
Weather in Sterling, Virginia for September 2026
Your guide to Sterling weather in September - trends and predictions
So far, September 2026 in Sterling shows a warmer trend than usual by 3.1 °F.
The forecast for the next days in Sterling predicts temperatures to be around 20 °F, close to the historical average.
In general, the average temperature in Sterling at the beginning of September is 28.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.9 °F by the end of September.
Sterling in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 221.6 mm.
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Temperatures
Rain 🌧️
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12
Dry days
18
Rainy days
0
Snow days
25°/17°
Temperatures
13 km/h
Avg max wind
70 %
Avg humidity
Sterling Weather September
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Temperatures trend during September in Sterling
See the weather trend as well as the moving average line
September weather in Sterling day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Heavy rain at times | 30° /18° | 1.1 mm | 7 | |
| Sept. 2 |  Overcast | 29° /18° | 24 mm | 6 | |
| Sept. 3 |  Sunny | 29° /16° | 0.2 mm | 7 | |
| Sept. 4 | Overcast | 30° /17° | 5.9 mm | 7 | |
| Sept. 5 |  Partly cloudy | 29° /17° | 1.1 mm | 7 | |
| Sept. 6 | Overcast | 30° /17° | 36.7 mm | 7 | |
| Sept. 7 |  Moderate rain at times | 25° /15° | 0.4 mm | 6 | |
| Sept. 8 | Sunny | 26° /11° | 0 mm | 7 | |
| Sept. 9 | Sunny | 27° /13° | 0 mm | 6 | |
| Sept. 10 | Sunny | 28° /16° | 1.1 mm | 5 | |
| Sept. 11 | Sunny | 27° /16° | 0.2 mm | 5 | |
| Sept. 12 | Sunny | 28° /16° | 1.1 mm | 6 | |
| Sept. 13 |  Patchy rain possible | 29° /17° | 1.2 mm | 5 | |
| Sept. 14 |  Cloudy | 28° /17° | 0 mm | 7 | |
| Sept. 15 | Overcast | 27° /15° | 0.5 mm | 7 | |
| Sept. 16 | Overcast | 25° /15° | 1.6 mm | 6 | |
| Sept. 17 | Moderate or heavy rain shower | 23° /17° | 30.9 mm | 5 | |
| Sept. 18 | Moderate or heavy rain shower | 27° /19° | 6.5 mm | 5 | |
| Sept. 19 | Sunny | 27° /16° | 0 mm | 7.3 | |
| Sept. 20 | Patchy rain possible | 28° /18° | 5.3 mm | 4.4 | |
| Sept. 21 | Light rain shower | 21° /16° | 7.6 mm | 3.1 | |
| Sept. 22 | Light rain shower | 18° /14° | 10.2 mm | 4 | |
| Sept. 23 | Light rain shower | 13° /11° | 14.8 mm | 3 | |
| Sept. 24 |  Fog | 14° /13° | 1.9 mm | 3 | |
| Sept. 25 | Mist | 16° /12° | 1.2 mm | 4 | |
| Sept. 26 | Sunny | 21° /11° | 0 mm | 6 | |
| Sept. 27 | Sunny | 21° /10° | 0 mm | 6 | |
| Sept. 28 | Overcast | 17° /12° | 0 mm | 4 | |
| Sept. 29 | Sunny | 22° /13° | 0 mm | 6 | |
| Sept. 30 | Overcast | 21° /12° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Sterling 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 Sterling forecast closer to your planned date for the most up-to-date weather information.
Change Month
Sterling in September - FAQ
What are the expected maximum and minimum temperatures in Sterling during September?
During September, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sterling during September?
Significant rainfall exceeding 221.6 mm is expected in Sterling during September, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sterling during September?
The average wind speed in Sterling during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sterling
Explore the daily rainfall trends and prepare for Sterlings September weather 💧
Typically, Sterling has 18 rainy days in September with a total of 221.6 mm of rainfall.
UV exposure in Sterling during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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