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October Weather in Marlborough, United States

Last updated: June 24, 2025

In October, the average temperature in Marlborough, United States hovers around 11°C (52°F), making it a cool yet pleasant time to explore. Expect a range from a brisk -4°C (25°F) to a warm 27°C (81°F). During this month, you can anticipate about 135 mm (5.3 in) of precipitation spread over approximately 12 days, contributing to an average humidity of 78%. Whether you're bracing for a chill or enjoying mild warmth, be prepared for an interesting mix of weather!

October Temperature in Marlborough

In October in Marlborough, the average temperature is 11°C (52°F). Maximums can reach 27°C (81°F) and minimums can drop to as low as -4°C (25°F). Be prepared for a range of weather conditions, making it essential to pack layers for your travels.

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

The chart illustrates October temperature patterns in Marlborough, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marlborough, October typically has an average temperature of 11°C (52°F), with highs reaching up to 27°C (81°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec252733455767727063523728
Data source: Temperature data for Marlborough 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 Marlborough

In Marlborough in October, the precipitation amount is 135 mm (5.3 in), occurring over the course of 12 days.

October Precipitation Trends in Marlborough

The chart displays monthly precipitation patterns in Marlborough, 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 Marlborough, October typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec72857512381781198980135100113
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Marlborough

In Marlborough in October humidity is 78%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and travel more challenging as you navigate the moist air.

October Average Humidity in Marlborough

This chart illustrates the average monthly humidity levels in Marlborough, 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 Marlborough is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Marlborough

In Marlborough in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Marlborough, you can refer to this Hourly UV Index in Marlborough.

Maximum UV Index Levels in Marlborough for October

The chart shows the monthly maximum UV Index (UVI) for Marlborough 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 Marlborough typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997632
Data source: Marlborough 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 Marlborough Compares to Other Months

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

This table compares monthly weather conditions in Marlborough, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)72 mm (2.8 inches)86%moderate
February Weather-3°C (27°F)85 mm (3.4 inches)84%moderate
March Weather1°C (33°F)75 mm (3.0 inches)82%high
April Weather7°C (45°F)123 mm (4.8 inches)80%very high
May Weather14°C (57°F)81 mm (3.2 inches)72%very high
June Weather19°C (67°F)78 mm (3.1 inches)72%very high
July Weather22°C (72°F)119 mm (4.7 inches)67%very high
August Weather21°C (71°F)89 mm (3.5 inches)66%very high
September Weather17°C (63°F)80 mm (3.1 inches)71%high
October Weather11°C (52°F)135 mm (5.3 inches)78%high
November Weather3°C (38°F)100 mm (3.9 inches)84%moderate
December Weather-2°C (29°F)112 mm (4.4 inches)81%low

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