September weather in Bellevue, ID
The average temperature in Bellevue in September is 60.4°F (44.7°F–76.0°F). Average precipitation: 0.84 inches.
September is a fall month in Bellevue, and is warmer than the annual average of 46.9°F. Daily temperatures swing about 31.3°F between overnight low and afternoon high. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
76.0°F
Avg Low
44.7°F
Precipitation
0.84 in
Daylight
12h 17m
September records in Bellevue
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (2022) | 34.0°F (2020) | 0.00 in (2014) |
| September 2 | 91.9°F (2017) | 41.0°F (2014) | 0.02 in (2024) |
| September 3 | 95.0°F (2017) | 39.9°F (2014) | 0.06 in (2023) |
| September 4 | 93.0°F (2022) | 37.9°F (2014) | 0.00 in (2014) |
| September 5 | 96.1°F (2020) | 37.0°F (2016) | 0.34 in (2016) |
| September 6 | 96.1°F (2022) | 33.1°F (2015) | 0.00 in (2014) |
| September 7 | 96.1°F (2022) | 37.0°F (2015) | 0.00 in (2014) |
| September 8 | 95.0°F (2022) | 39.9°F (2020) | 0.06 in (2023) |
| September 9 | 91.9°F (2021) | 34.0°F (2020) | 0.00 in (2014) |
| September 10 | 89.1°F (2015) | 39.0°F (2016) | 0.05 in (2021) |
| September 11 | 86.0°F (2015) | 34.0°F (2014) | 0.18 in (2019) |
| September 12 | 88.0°F (2015) | 33.1°F (2014) | 0.08 in (2016) |
| September 13 | 86.0°F (2015) | 36.0°F (2016) | 0.05 in (2023) |
| September 14 | 87.1°F (2020) | 39.9°F (2024) | 1.21 in (2016) |
| September 15 | 84.0°F (2014) | 39.0°F (2016) | 0.30 in (2015) |
| September 16 | 86.0°F (2014) | 32.0°F (2018) | 0.43 in (2024) |
| September 17 | 87.1°F (2014) | 37.0°F (2018) | 0.42 in (2024) |
| September 18 | 82.9°F (2023) | 35.1°F (2015) | 0.20 in (2017) |
| September 19 | 80.1°F (2014) | 36.0°F (2017) | 0.17 in (2021) |
| September 20 | 82.9°F (2025) | 33.1°F (2021) | 0.12 in (2019) |
| September 21 | 80.1°F (2015) | 34.0°F (2021) | 0.47 in (2016) |
| September 22 | 82.0°F (2015) | 37.0°F (2019) | 0.31 in (2016) |
| September 23 | 80.1°F (2015) | 30.9°F (2017) | 0.15 in (2016) |
| September 24 | 84.9°F (2014) | 35.1°F (2017) | 0.00 in (2014) |
| September 25 | 86.0°F (2015) | 34.0°F (2018) | 0.00 in (2014) |
| September 26 | 84.0°F (2024) | 36.0°F (2018) | 0.04 in (2014) |
| September 27 | 82.9°F (2022) | 34.0°F (2020) | 0.24 in (2014) |
| September 28 | 87.1°F (2024) | 34.0°F (2020) | 1.30 in (2014) |
| September 29 | 86.0°F (2024) | 28.9°F (2021) | 0.19 in (2019) |
| September 30 | 79.0°F (2015) | 26.1°F (2019) | 0.58 in (2025) |