nomadseason

July Weather in Great Falls, United States

Last updated: June 24, 2025

In July, the average temperature in Great Falls, United States is a warm 27°C (81°F), with minimums dipping to 18°C (64°F) and highs reaching up to 36°C (97°F). During this period, expect about 124 mm (4.9 in) of precipitation spread over 15 days, contributing to a humidity level of 80% that adds a touch of tropical warmth to the atmosphere.

July Temperature in Great Falls

In July in Great Falls, the average temperature is 27°C (81°F). Maximums can reach 36°C (97°F), while minimums can be as low as 18°C (64°F). Travelers should prepare for warm weather with the possibility of hot days and cooler evenings, making it ideal for outdoor activities.

July Weather in Great Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Great Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Great Falls, July typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (97°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec475256647277817976675449
Data source: Temperature data for Great Falls generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Great Falls

In Great Falls in July, the total precipitation amount is 124 mm (4.9 in) over a period of 15 days.

July Precipitation Trends in Great Falls

The chart displays monthly precipitation patterns in Great Falls, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Great Falls, July typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec89124831011121011241291027785131
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Great Falls

In Great Falls in July humidity is 80%. With an average temperature of 27°C (81°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making travel tiring as sweat beads form quickly and the air feels thick and heavy.

July Average Humidity in Great Falls

This chart illustrates the average monthly humidity levels in Great Falls, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Great Falls is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Great Falls

In Great Falls in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Great Falls.

Maximum UV Index Levels in Great Falls for July

The chart shows the monthly maximum UV Index (UVI) for Great Falls in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Great Falls typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810101111109864
Data source: Great Falls July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How July Weather in Great Falls Compares to Other Months

Weather in Great Falls varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Great Falls, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Great Falls, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)89 mm (3.5 inches)86%moderate
February Weather11°C (52°F)124 mm (4.9 inches)85%high
March Weather13°C (56°F)83 mm (3.3 inches)84%very high
April Weather18°C (64°F)101 mm (4.0 inches)82%very high
May Weather22°C (72°F)112 mm (4.4 inches)83%very high
June Weather25°C (78°F)101 mm (4.0 inches)82%extreme
July Weather27°C (81°F)124 mm (4.9 inches)80%extreme
August Weather26°C (80°F)129 mm (5.1 inches)74%very high
September Weather24°C (76°F)102 mm (4.0 inches)75%very high
October Weather20°C (68°F)77 mm (3.0 inches)79%very high
November Weather12°C (54°F)85 mm (3.3 inches)87%high
December Weather10°C (50°F)131 mm (5.1 inches)87%moderate

Compare Great Falls's Climate with Cities Worldwide