Boone (NC)
September
Weather in Boone, North Carolina for September 2026
Your guide to Boone weather in September - trends and predictions
So far, September 2026 in Boone shows a warmer trend than usual by 4.5 °F.
The forecast for the next days in Boone predicts temperatures to be around 21 °F, close to the historical average.
In general, the average temperature in Boone at the beginning of September is 23.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.4 °F by the end of September.
Boone experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 475.3 mm.
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Temperatures
Rain 🌧️
More
8
Dry days
22
Rainy days
0
Snow days
20°/14°
Temperatures
11 km/h
Avg max wind
82 %
Avg humidity
Boone Weather September
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Temperatures trend during September in Boone
See the weather trend as well as the moving average line
September weather in Boone day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 24° /14° | 3.5 mm | 6 | |
| Sept. 2 |  Patchy rain possible | 26° /14° | 0.2 mm | 7 | |
| Sept. 3 |  Partly cloudy | 23° /14° | 0 mm | 7 | |
| Sept. 4 |  Overcast | 24° /12° | 9.8 mm | 6 | |
| Sept. 5 | Overcast | 25° /15° | 2.4 mm | 7 | |
| Sept. 6 | Partly cloudy | 24° /15° | 4.3 mm | 6 | |
| Sept. 7 | Overcast | 20° /13° | 6.3 mm | 4 | |
| Sept. 8 |  Sunny | 20° /9° | 0 mm | 6 | |
| Sept. 9 | Sunny | 23° /10° | 0.1 mm | 6 | |
| Sept. 10 | Sunny | 23° /11° | 0 mm | 6 | |
| Sept. 11 | Sunny | 23° /13° | 0.8 mm | 6 | |
| Sept. 12 | Overcast | 20° /13° | 4 mm | 3 | |
| Sept. 13 | Patchy rain possible | 22° /13° | 1.6 mm | 4 | |
| Sept. 14 | Moderate rain at times | 23° /15° | 1.7 mm | 6 | |
| Sept. 15 | Patchy rain possible | 22° /14° | 4.2 mm | 6 | |
| Sept. 16 | Moderate rain at times | 21° /12° | 11.1 mm | 6 | |
| Sept. 17 | Moderate or heavy rain shower | 21° /13° | 32.2 mm | 6 | |
| Sept. 18 | Moderate or heavy rain shower | 22° /15° | 12.7 mm | 5 | |
| Sept. 19 | Moderate or heavy rain shower | 22° /16° | 15 mm | 5 | |
| Sept. 20 |  Fog | 27° /16° | 5.8 mm | 7.9 | |
| Sept. 21 | Light rain shower | 28° /16° | 10 mm | 7.5 | |
| Sept. 22 | Light rain shower | 21° /15° | 14.8 mm | 4.7 | |
| Sept. 23 | Light rain shower | 18° /12° | 7.9 mm | 1.1 | |
| Sept. 24 | Patchy rain possible | 21° /11° | 5.5 mm | 5 | |
| Sept. 25 | Mist | 21° /11° | 0 mm | 6 | |
| Sept. 26 | Light rain shower | 14° /10° | 10.2 mm | 3 | |
| Sept. 27 | Sunny | 20° /9° | 0 mm | 5 | |
| Sept. 28 | Sunny | 19° /8° | 0 mm | 5 | |
| Sept. 29 | Light rain shower | 15° /11° | 6.4 mm | 4 | |
| Sept. 30 | Fog | 19° /10° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Boone 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 Boone forecast closer to your planned date for the most up-to-date weather information.
Change Month
Boone in September - FAQ
What are the expected maximum and minimum temperatures in Boone during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Boone during September?
Significant rainfall exceeding 475.3 mm is expected in Boone during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Boone during September?
The average wind speed in Boone during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Boone
Explore the daily rainfall trends and prepare for Boones September weather 💧
Typically, Boone has 22 rainy days in September with a total of 475.3 mm of rainfall.
UV exposure in Boone during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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