| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 阴 | 24°/11° | 0.0 mm |
| 2026-09-02 | 雾 | 23°/10° | 0.0 mm |
| 2026-09-03 | 大雨 | 25°/9° | 45.7 mm |
| 2026-09-04 | 中雨 | 19°/13° | 5.1 mm |
| 2026-09-05 | 雾 | 21°/15° | 0.0 mm |
| 2026-09-06 | 雾 | 26°/11° | 0.0 mm |
| 2026-09-07 | 小毛毛雨 | 24°/17° | 0.4 mm |
| 2026-09-08 | 小毛毛雨 | 23°/17° | 0.4 mm |
| 2026-09-09 | 阴 | 19°/11° | 0.0 mm |
| 2026-09-10 | 阴 | 23°/4° | 0.0 mm |
| 2026-09-11 | 中雨 | 23°/14° | 7.2 mm |
| 2026-09-12 | 阴 | 16°/8° | 0.0 mm |
| 2026-09-13 | 阴 | 15°/4° | 0.0 mm |
| 2026-09-14 | 大雨 | 14°/0° | 17.4 mm |
| 2026-09-15 | 小毛毛雨 | 16°/7° | 0.4 mm |
| 2026-09-16 | 雾 | 19°/1° | 0.0 mm |
| 2026-09-17 | 雾 | 17°/5° | 0.0 mm |
| 2026-09-18 | 阴 | 16°/4° | 0.0 mm |
| 2026-09-19 | 雾 | 18°/8° | 0.0 mm |
| 2026-09-20 | 雾 | 16°/7° | 0.0 mm |
| 2026-09-21 | 阴 | 16°/1° | 0.0 mm |
| 2026-09-22 | 雾 | 16°/0° | 0.0 mm |
| 2026-09-23 | 雾 | 17°/1° | 0.0 mm |
| 2026-09-24 | 小雨 | 13°/7° | 2.9 mm |
| 2026-09-25 | 雾 | 17°/12° | 0.0 mm |
| 2026-09-26 | 雾 | 18°/8° | 0.0 mm |
| 2026-09-27 | 雾 | 19°/8° | 0.0 mm |
| 2026-09-28 | 雾 | 21°/3° | 0.0 mm |
| 2026-09-29 | 大毛毛雨 | 16°/15° | 2.9 mm |
| 2026-09-30 | 阴 | 22°/11° | 0.0 mm |
2026年09月圣刘易斯共记录 30 天，平均最高 19℃、最低 8℃，降水日 9 天。