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June Weather in Lewistown, United States

Last updated: June 24, 2025

In June, the average temperature in Lewistown, United States is a pleasant 24°C (76°F). However, the temperature can vary, with minimums dipping to 10°C (51°F) and maximums soaring to 36°C (97°F). During this month, you can expect 105 mm (4.1 in) of precipitation over 9 days, contributing to an average humidity of 83%.

June Temperature in Lewistown

In June in Lewistown, the average temperature is 24°C (76°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 10°C (51°F). This diverse temperature range makes it an ideal destination for travelers seeking both warm days and cool evenings.

June Weather in Lewistown: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Lewistown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lewistown, June typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec283144526576797571564236
Data source: Temperature data for Lewistown generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Lewistown

In Lewistown in June, the total precipitation amount reaches 105 mm (4.1 in) over the course of 9 days.

June Precipitation Trends in Lewistown

The chart displays monthly precipitation patterns in Lewistown, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Lewistown, June typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec59571151001771059193811145241
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Lewistown

In Lewistown in June, humidity is 83%. With an average temperature of 24°C (76°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and possibly causing travelers to sweat more quickly, prompting frequent breaks in shaded areas or the search for refreshing beverages.

June Average Humidity in Lewistown

This chart illustrates the average monthly humidity levels in Lewistown, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Lewistown is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Lewistown

In Lewistown in June, 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 Lewistown.

Maximum UV Index Levels in Lewistown for June

The chart shows the monthly maximum UV Index (UVI) for Lewistown in June, 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 June, the maximum UV index in Lewistown typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110108643
Data source: Lewistown June 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 June Weather in Lewistown Compares to Other Months

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

This table compares monthly weather conditions in Lewistown, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)59 mm (2.3 inches)82%moderate
February Weather-1°C (31°F)57 mm (2.2 inches)80%moderate
March Weather7°C (44°F)115 mm (4.5 inches)80%high
April Weather11°C (53°F)100 mm (4.0 inches)80%very high
May Weather18°C (66°F)177 mm (7.0 inches)82%very high
June Weather24°C (76°F)105 mm (4.1 inches)83%extreme
July Weather26°C (79°F)91 mm (3.6 inches)81%very high
August Weather24°C (76°F)93 mm (3.7 inches)80%very high
September Weather21°C (71°F)81 mm (3.2 inches)76%very high
October Weather14°C (57°F)114 mm (4.5 inches)76%high
November Weather5°C (42°F)52 mm (2.1 inches)85%moderate
December Weather2°C (36°F)41 mm (1.6 inches)86%moderate

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