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October Weather in Lewiston, United States

Last updated: June 24, 2025

In October, the average temperature in Lewiston, United States is a crisp 10°C (50°F). Expect a range where the minimum dips to -10°C (14°F) and the maximum soars to 29°C (84°F). During this month, precipitation averages 52 mm (2.1 in) across 9 days, with an average humidity of 79%, creating a uniquely dynamic climate experience.

October Temperature in Lewiston

In October in Lewiston, the average temperature is 10°C (50°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop as low as -10°C (14°F). Travelers should be prepared for a wide range of temperatures, making layering essential for a comfortable visit.

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

The chart illustrates October 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, October typically has an average temperature of 10°C (50°F), with highs reaching up to 29°C (84°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec323341495866757564504033
Data source: Temperature data for Lewiston 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.

October Precipitation in Lewiston

In Lewiston in October, the total precipitation amount is 52 mm (2.1 in) over the course of 9 days.

October Precipitation Trends in Lewiston

The chart displays monthly precipitation patterns in Lewiston, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Lewiston, October typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec5895645147283822526574
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Lewiston

In Lewiston in October humidity is 79%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration less inviting and requiring layered clothing to stay comfortable while traveling.

October Average Humidity in Lewiston

This chart illustrates the average monthly humidity levels in Lewiston, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Lewiston is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Lewiston

In Lewiston in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Lewiston.

Maximum UV Index Levels in Lewiston for October

The chart shows the monthly maximum UV Index (UVI) for Lewiston in October, 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 October, the maximum UV index in Lewiston typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097532
Data source: Lewiston October 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 October 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 October’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 October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)58 mm (2.3 inches)89%low
February Weather1°C (33°F)95 mm (3.7 inches)89%moderate
March Weather5°C (41°F)64 mm (2.5 inches)87%high
April Weather9°C (49°F)51 mm (2.0 inches)84%very high
May Weather14°C (58°F)47 mm (1.8 inches)77%very high
June Weather19°C (66°F)28 mm (1.1 inches)78%very high
July Weather24°C (76°F)3 mm (0.1 inches)77%very high
August Weather24°C (75°F)8 mm (0.3 inches)64%very high
September Weather18°C (64°F)22 mm (0.9 inches)62%high
October Weather10°C (50°F)52 mm (2.1 inches)79%moderate
November Weather4°C (40°F)65 mm (2.6 inches)87%moderate
December Weather1°C (33°F)74 mm (2.9 inches)90%low

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