nomadseason

October Weather in Sycamore, United States

Last updated: June 24, 2025

In Sycamore, United States, the average temperature in October is a mild 14°C (57°F). However, temperatures can vary significantly, dipping to a brisk -3°C (27°F) at the lowest and soaring to a toasty 33°C (92°F) at the highest. Expect 93 mm (3.7 in) of precipitation over the course of 13 days, accompanied by an average humidity of 82%, making for a distinctly humid atmosphere.

October Temperature in Sycamore

In October in Sycamore, the average temperature is 14°C (57°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as -3°C (27°F). Be prepared for a wide range of temperatures and pack accordingly for a comfortable trip.

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

The chart illustrates October temperature patterns in Sycamore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sycamore, October typically has an average temperature of 14°C (57°F), with highs reaching up to 33°C (92°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec293240506271757368574135
Data source: Temperature data for Sycamore 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.

October Precipitation in Sycamore

In Sycamore in October, the total precipitation amount is 93 mm (3.7 in), which falls over the course of 13 days.

October Precipitation Trends in Sycamore

The chart displays monthly precipitation patterns in Sycamore, 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 Sycamore, October typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7289971101341311238673939070
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Sycamore

In Sycamore in October, humidity is 82%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and travel more challenging due to the heavy, damp air.

October Average Humidity in Sycamore

This chart illustrates the average monthly humidity levels in Sycamore, 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 Sycamore is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Sycamore

In Sycamore 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 Sycamore, you can refer to this Hourly UV Index in Sycamore.

Maximum UV Index Levels in Sycamore for October

The chart shows the monthly maximum UV Index (UVI) for Sycamore 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 Sycamore typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Sycamore 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 Sycamore Compares to Other Months

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

This table compares monthly weather conditions in Sycamore, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (30°F)72 mm (2.9 inches)88%moderate
February Weather0°C (32°F)89 mm (3.5 inches)87%moderate
March Weather5°C (41°F)97 mm (3.8 inches)87%high
April Weather10°C (50°F)110 mm (4.3 inches)87%very high
May Weather17°C (62°F)134 mm (5.3 inches)81%very high
June Weather22°C (71°F)131 mm (5.1 inches)82%very high
July Weather24°C (75°F)123 mm (4.8 inches)81%very high
August Weather23°C (73°F)86 mm (3.4 inches)78%very high
September Weather20°C (68°F)73 mm (2.9 inches)78%very high
October Weather14°C (57°F)93 mm (3.7 inches)82%high
November Weather5°C (42°F)90 mm (3.5 inches)89%moderate
December Weather2°C (35°F)70 mm (2.7 inches)86%low

Compare Sycamore's Climate with Cities Worldwide