Lewistown weather in July 2025

Expect 81°F daytime maximum temperatures in the shade with on average 12 hours of sunshine per day in Lewistown in July. Check more long-term weather averages for Lewistown in July before you book your next holiday to Montana in 2025/2026.

  • 81°F maximum daytime temperature in July in Lewistown81
    81°F max day temperature
  • 12 hours of sunshine per day
  • 7 days with some rainfall in July in Lewistown7
    7 days with some rainfall
  • 50°F minimum night-time temperature in July in Lewistown50
    50°F min night temperature
  • 15 hours of daylight per day in July in Lewistown15
    15 hours of daylight per day
  • Low heat & humidity in July in LewistownL
    Low heat & humidity
  • 1.7 inches monthly rainfall in July in Lewistown1.7
    1.7 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Lewistown8
    8 (Very High) UV index

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The July weather guide for Montana (Lewistown) 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 Lewistown in July?

Daytime temperatures usually reach 81°F in Lewistown in July with low heat and humidity, falling to 50°F at night.

How sunny is it in Lewistown in July?

There are normally 12 hours of bright sunshine each day in Lewistown in July - that's 78% of daylight hours.

Does it rain in Lewistown in July?

There are usually 7 days with some rain in Lewistown in July and the average monthly rainfall is 1.7 inches.

Lewistown July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:27 20:16
Wednesday, 16th July 2025 04:39 20:08
Thursday, 31st July 2025 04:56 19:51

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