When to go · St. Louis County
St. Louis County in September
Great month. Inside St. Louis County's best window: Apr–May, Sep–Oct.
Key facts
- Verdict
- Great
- Temperature
- 27°C81°F / 15°C59°F
- average high / low
- Rain days
- 7
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
GreatBest and avoid months for St. Louis County
Inside St. Louis County's best window: Apr–May, Sep–Oct.
Weather in September
- St. Louis CountyHighs around 27 °C, lows around 15 °C, rain on about 7 daysHighs around 81 °F, lows around 59 °F, rain on about 7 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
What to pack
Nothing unusual for the weather this month.