St Louis weather in August 2024

Expect 31°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in St Louis in August. Check more long-term weather averages for St Louis in August before you book your next holiday to Missouri in 2024/2025.

  • 31°C maximum daytime temperature in August in St Louis31
    31°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in August in St Louis8
    8 days with some rainfall
  • 19°C minimum night-time temperature in August in St Louis19
    19°C min night temperature
  • 14 hours of daylight per day in August in St Louis14
    14 hours of daylight per day
  • High heat & humidity in August in St LouisH
    High heat & humidity
  • 75 mm monthly rainfall in August in St Louis75
    75 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in St Louis9
    9 (Very High) UV index

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The August 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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How hot is it in St Louis in August?

Daytime temperatures usually reach 31°C in St Louis in August with high heat and humidity, falling to 19°C at night.

How sunny is it in St Louis in August?

There are normally 9 hours of bright sunshine each day in St Louis in August - that's 65% of daylight hours.

Does it rain in St Louis in August?

There are usually 8 days with some rain in St Louis in August and the average monthly rainfall is 75mm.

St Louis August sunrise & sunset times

Browse the sunrise and sunset times for St Louis in August 2024. Select a month to view St Louis sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st August 2024 06:03 20:11
Friday, 16th August 2024 06:16 19:53
Saturday, 31st August 2024 06:30 19:31

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