St Louis weather in October 2025

Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in St Louis in October. Check more long-term weather averages for St Louis in October before you book your next holiday to Missouri in 2025/2026.

  • 20°C maximum daytime temperature in October in St Louis20
    20°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in October in St Louis8
    8 days with some rainfall
  • 8°C minimum night-time temperature in October in St Louis8
    8°C min night temperature
  • 11 hours of daylight per day in October in St Louis11
    11 hours of daylight per day
  • No heat & humidity in October in St Louis0
    No heat & humidity
  • 67 mm monthly rainfall in October in St Louis67
    67 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in October in St Louis4
    4 (Moderate) UV index

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The October weather guide for Missouri (St Louis) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the USA

How hot is it in St Louis in October?

Daytime temperatures usually reach 20°C in St Louis in October, falling to 8°C at night.

How sunny is it in St Louis in October?

There are normally 7 hours of bright sunshine each day in St Louis in October - that's 61% of daylight hours.

Does it rain in St Louis in October?

There are usually 8 days with some rain in St Louis in October and the average monthly rainfall is 67mm.

St Louis October sunrise & sunset times

Browse the sunrise and sunset times for St Louis in October 2025. Select a month to view St Louis sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 05:57 17:43
Thursday, 16th October 2025 06:11 17:21
Friday, 31st October 2025 06:27 17:01

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