nomadseason

June Weather in Lewiston, United States

Last updated: June 24, 2025

In Lewiston, United States, the average temperature in June hovers around 18°C (64°F). You can expect a minimum of 8°C (47°F) and a pleasant maximum of 27°C (80°F). During this time, precipitation averages 81 mm (3.2 in) over 10 days, contributing to an average humidity level of 79%.

June Temperature in Lewiston

In June in Lewiston, the average temperature is 18°C (64°F), with maximums reaching up to 27°C (80°F) and minimums dropping as low as 8°C (47°F). This pleasant climate makes Lewiston an ideal destination for travelers seeking mild weather and enjoyable outdoor activities.

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

The chart illustrates June temperature patterns in Lewiston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lewiston, June typically has an average temperature of 18°C (64°F), with highs reaching up to 27°C (80°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec293035435264737266564235
Data source: Temperature data for Lewiston 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.

June Precipitation in Lewiston

In Lewiston in June, the precipitation amount is 81 mm (3.2 in) over a span of 10 days.

June Precipitation Trends in Lewiston

The chart displays monthly precipitation patterns in Lewiston, 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 Lewiston, June typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec788772118998111585731288990
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Lewiston

In Lewiston in June, humidity is 79%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities more challenging but also creates a lush, vibrant atmosphere that's perfect for exploring local culture and scenery.

June Average Humidity in Lewiston

This chart illustrates the average monthly humidity levels in Lewiston, 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 Lewiston is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Lewiston

In Lewiston in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Lewiston.

Maximum UV Index Levels in Lewiston for June

The chart shows the monthly maximum UV Index (UVI) for Lewiston 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 Lewiston typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Lewiston 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 Lewiston Compares to Other Months

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

This table compares monthly weather conditions in Lewiston, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)78 mm (3.1 inches)91%low
February Weather-1°C (30°F)87 mm (3.4 inches)91%moderate
March Weather2°C (35°F)71 mm (2.8 inches)88%moderate
April Weather6°C (43°F)118 mm (4.6 inches)88%very high
May Weather11°C (53°F)99 mm (3.9 inches)82%very high
June Weather18°C (64°F)81 mm (3.2 inches)79%very high
July Weather23°C (73°F)115 mm (4.5 inches)77%very high
August Weather22°C (73°F)85 mm (3.3 inches)72%very high
September Weather19°C (66°F)73 mm (2.9 inches)76%high
October Weather13°C (56°F)128 mm (5.0 inches)83%moderate
November Weather6°C (42°F)89 mm (3.5 inches)88%moderate
December Weather1°C (35°F)90 mm (3.5 inches)87%low

Compare Lewiston's Climate with Cities Worldwide