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October Weather in Buffalo Grove, United States

Last updated: June 24, 2025

In October, the average temperature in Buffalo Grove, United States is a comfortable 12°C (54°F). However, temperatures can vary significantly, with lows of -1°C (31°F) and the chance to reach highs of 29°C (84°F). Expect a moderate precipitation of 133 mm (5.2 in) spread over approximately 13 days, and keep in mind the average humidity level sits at a notable 83%.

October Temperature in Buffalo Grove

In October in Buffalo Grove, the average temperature is 12°C (54°F). The maximum can reach 29°C (84°F) and the minimum can be as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling, as it can be quite warm during the day and chilly at night.

October Weather in Buffalo Grove: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Buffalo Grove, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buffalo Grove, October typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (84°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec262737455668747267543933
Data source: Temperature data for Buffalo Grove 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 Buffalo Grove

In Buffalo Grove in October, the total precipitation amount is 133 mm (5.2 in) spread over 13 days.

October Precipitation Trends in Buffalo Grove

The chart displays monthly precipitation patterns in Buffalo Grove, 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 Buffalo Grove, October typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec6867761181641098483851335859
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Buffalo Grove

In Buffalo Grove in October humidity is 83%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making outdoor exploration feel sticky and uncomfortable, which can dampen the excitement of traveling.

October Average Humidity in Buffalo Grove

This chart illustrates the average monthly humidity levels in Buffalo Grove, 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 Buffalo Grove is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Buffalo Grove

In Buffalo Grove 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 Buffalo Grove.

Maximum UV Index Levels in Buffalo Grove for October

The chart shows the monthly maximum UV Index (UVI) for Buffalo Grove 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 Buffalo Grove typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101098532
Data source: Buffalo Grove 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 Buffalo Grove Compares to Other Months

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

This table compares monthly weather conditions in Buffalo Grove, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)68 mm (2.7 inches)85%low
February Weather-3°C (28°F)67 mm (2.6 inches)85%moderate
March Weather3°C (38°F)76 mm (3.0 inches)85%high
April Weather7°C (46°F)118 mm (4.6 inches)85%very high
May Weather14°C (57°F)164 mm (6.5 inches)78%very high
June Weather20°C (68°F)109 mm (4.3 inches)80%very high
July Weather23°C (74°F)84 mm (3.3 inches)78%very high
August Weather22°C (73°F)83 mm (3.3 inches)76%very high
September Weather19°C (67°F)85 mm (3.3 inches)79%very high
October Weather12°C (54°F)133 mm (5.2 inches)83%moderate
November Weather4°C (40°F)58 mm (2.3 inches)88%moderate
December Weather1°C (33°F)59 mm (2.3 inches)81%low

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