Rapid City weather in May 2024

Expect 68°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Rapid City in May. Check more long-term weather averages for Rapid City in May before you book your next holiday to South Dakota in 2024/2025.

  • 68°F maximum daytime temperature in May in Rapid City68
    68°F max day temperature
  • 9 hours of sunshine per day
  • 12 days with some rainfall in May in Rapid City12
    12 days with some rainfall
  • 43°F minimum night-time temperature in May in Rapid City43
    43°F min night temperature
  • 15 hours of daylight per day in May in Rapid City15
    15 hours of daylight per day
  • No heat & humidity in May in Rapid City0
    No heat & humidity
  • 3.1 inches monthly rainfall in May in Rapid City3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 7 (High) in May in Rapid City7
    7 (High) UV index

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The May weather guide for South Dakota (Rapid City) 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)  |  Imperial (°F)

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How hot is it in Rapid City in May?

Daytime temperatures usually reach 68°F in Rapid City in May, falling to 43°F at night.

How sunny is it in Rapid City in May?

There are normally 9 hours of bright sunshine each day in Rapid City in May - that's 59% of daylight hours.

Does it rain in Rapid City in May?

There are usually 12 days with some rain in Rapid City in May and the average monthly rainfall is 3.1 inches.

Rapid City May sunrise & sunset times

Browse the sunrise and sunset times for Rapid City in May 2024. Select a month to view Rapid City sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st May 2024 05:43 19:57
Thursday, 16th May 2024 05:25 20:14
Friday, 31st May 2024 05:13 20:29

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