Click on a day for an hourly weather forecast
The temperatures in Boone in September are comfortable with low of 13°C and and high up to 26°C.
You can expect about 3 to 8 days of rain in Boone during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Boone in September 2025.
If you’re planning to visit Boone in the near future, we highly recommend that you review the 14 day weather forecast for Boone before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / -4° | 8 | 15 | 8 | 130 mm | Awful | Boone in January |
| February | 8° / -2° | 8 | 13 | 7 | 122 mm | Awful | Boone in February |
| March | 13° / 2° | 9 | 19 | 4 | 126 mm | Awful | Boone in March |
| April | 18° / 6° | 8 | 22 | 1 | 151 mm | Ok | Boone in April |
| May | 23° / 10° | 8 | 22 | 0 | 168 mm | Good | Boone in May |
| June | 28° / 14° | 8 | 22 | 0 | 122 mm | Good | Boone in June |
| July | 29° / 16° | 11 | 20 | 0 | 166 mm | Ok | Boone in July |
| August | 29° / 15° | 9 | 22 | 0 | 156 mm | Ok | Boone in August |
| September | 26° / 13° | 6 | 24 | 0 | 133 mm | Perfect | Boone in September |
| October | 20° / 8° | 5 | 25 | 0 | 118 mm | Good | Boone in October |
| November | 13° / 2° | 5 | 24 | 1 | 109 mm | Ok | Boone in November |
| December | 9° / 0° | 7 | 20 | 4 | 140 mm | Awful | Boone in December |