September in St. Louis, MO: shoulder season for golf — playable with smart tee time selection. Best tee times: morning before noon for the most comfortable round.
| Average September Weather | |
|---|---|
| Avg daily high | 82°F |
| Avg daily low | 63°F |
| Rainy days | 11 / mo |
| Avg peak wind | 9.3 mph |
Based on 10 years of climate data (2015–2024), September in St. Louis, MO averages 82°F highs and 63°F lows. Expect about 11 days with measurable precipitation and peak winds averaging 9.3 mph. Our playability scoring treats wind under 8 mph as ideal, temperatures of 60–80°F as optimal, and rain probability below 20% as a green light — use these averages to gauge how often September hits those thresholds.
For St. Louis in September, plan to morning before noon for the most comfortable round. Wind typically rises through the afternoon as thermal mixing builds, so earlier rounds tend to score higher on our playability scale.
Climate normals show the long-term picture, but day-to-day weather varies. Check today's live golf weather score for St. Louis, MO for the current playability rating, hourly wind, temperature, and the recommended tee time window.
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