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October Weather in Somonauk, United States

Last updated: June 24, 2025

In October, the average temperature in Somonauk, United States hovers around 12°C (54°F), creating a mild atmosphere. Temperatures can vary significantly, dipping to a chilly -5°C (24°F) at their lowest and soaring up to a warm 31°C (88°F) at times. Expect about 126 mm (5.0 in) of precipitation over 12 days, contributing to an average humidity of 82% that adds a touch of moisture to the air.

October Temperature in Somonauk

In October in Somonauk, the average temperature is 12°C (54°F). Maximums can reach 31°C (88°F) and minimums can be as low as -5°C (24°F). Pack accordingly for a trip, as the weather can vary significantly throughout the month.

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

The chart illustrates October temperature patterns in Somonauk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Somonauk, October typically has an average temperature of 12°C (54°F), with highs reaching up to 31°C (88°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec242639486172757268543832
Data source: Temperature data for Somonauk 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 Somonauk

In Somonauk in October, the precipitation amount is 126 mm (5.0 in) over the course of 12 days.

October Precipitation Trends in Somonauk

The chart displays monthly precipitation patterns in Somonauk, 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 Somonauk, October typically receives around 126 mm (5.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec626086117162137110781071265550
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Somonauk

In Somonauk in October humidity is 82%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and sweat-inducing, which can be quite uncomfortable for traveling.

October Average Humidity in Somonauk

This chart illustrates the average monthly humidity levels in Somonauk, 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 Somonauk is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Somonauk

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

Maximum UV Index Levels in Somonauk for October

The chart shows the monthly maximum UV Index (UVI) for Somonauk 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 Somonauk typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Somonauk 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 Somonauk Compares to Other Months

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

This table compares monthly weather conditions in Somonauk, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (24°F)62 mm (2.4 inches)82%moderate
February Weather-3°C (27°F)60 mm (2.4 inches)83%moderate
March Weather4°C (39°F)86 mm (3.4 inches)84%high
April Weather9°C (49°F)117 mm (4.6 inches)85%very high
May Weather16°C (61°F)162 mm (6.4 inches)79%very high
June Weather22°C (72°F)137 mm (5.4 inches)82%very high
July Weather24°C (75°F)110 mm (4.3 inches)80%very high
August Weather22°C (73°F)78 mm (3.1 inches)81%very high
September Weather20°C (68°F)107 mm (4.2 inches)80%very high
October Weather12°C (54°F)126 mm (5.0 inches)82%high
November Weather4°C (39°F)55 mm (2.2 inches)88%moderate
December Weather0°C (32°F)50 mm (2.0 inches)84%low

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