Missoula weather in May 2025

Expect 18°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Missoula in May. Check more long-term weather averages for Missoula in May before you book your next holiday to Montana in 2025/2026.

  • 18°C maximum daytime temperature in May in Missoula18
    18°C max day temperature
  • 9 hours of sunshine per day
  • 12 days with some rainfall in May in Missoula12
    12 days with some rainfall
  • 3°C minimum night-time temperature in May in Missoula3
    3°C min night temperature
  • 15 hours of daylight per day in May in Missoula15
    15 hours of daylight per day
  • No heat & humidity in May in Missoula0
    No heat & humidity
  • 48 mm monthly rainfall in May in Missoula48
    48 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Missoula7
    7 (High) UV index

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The May weather guide for Montana (Missoula) 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 Missoula in May?

Daytime temperatures usually reach 18°C in Missoula in May, falling to 3°C at night.

How sunny is it in Missoula in May?

There are normally 9 hours of bright sunshine each day in Missoula in May - that's 60% of daylight hours.

Does it rain in Missoula in May?

There are usually 12 days with some rain in Missoula in May and the average monthly rainfall is 48mm.

Missoula May sunrise & sunset times

Browse the sunrise and sunset times for Missoula in May 2025. Select a month to view Missoula sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:20 19:47
Friday, 16th May 2025 04:59 20:06
Saturday, 31st May 2025 04:46 20:22

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