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October Weather in Edwardsville, United States

Last updated: June 24, 2025

In October, the average temperature in Edwardsville, United States is a comfortable 15°C (59°F). However, be prepared for a range of temperatures, as it can drop to a chilly -3°C (27°F) or soar to a warm 34°C (93°F). Expect about 103 mm (4.1 in) of precipitation spread over 10 days, contributing to an average humidity of 76%.

October Temperature in Edwardsville

In October in Edwardsville, the average temperature is 15°C (59°F). Maximums can reach 34°C (93°F) while minimums can drop as low as -3°C (27°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates October temperature patterns in Edwardsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Edwardsville, October typically has an average temperature of 15°C (59°F), with highs reaching up to 34°C (93°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec323547556877807672594439
Data source: Temperature data for Edwardsville 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 Edwardsville

In Edwardsville in October, the precipitation amount is 103 mm (4.1 in) over a span of 10 days.

October Precipitation Trends in Edwardsville

The chart displays monthly precipitation patterns in Edwardsville, 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 Edwardsville, October typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec788013614415410996130591037562
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Edwardsville

In Edwardsville in October humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.

October Average Humidity in Edwardsville

This chart illustrates the average monthly humidity levels in Edwardsville, 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 Edwardsville is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Edwardsville

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

Maximum UV Index Levels in Edwardsville for October

The chart shows the monthly maximum UV Index (UVI) for Edwardsville 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 Edwardsville typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111099653
Data source: Edwardsville 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 Edwardsville Compares to Other Months

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

This table compares monthly weather conditions in Edwardsville, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)78 mm (3.1 inches)82%moderate
February Weather2°C (36°F)80 mm (3.2 inches)80%moderate
March Weather8°C (47°F)136 mm (5.4 inches)80%high
April Weather13°C (55°F)144 mm (5.7 inches)80%very high
May Weather20°C (68°F)154 mm (6.1 inches)82%very high
June Weather25°C (77°F)109 mm (4.3 inches)83%extreme
July Weather26°C (80°F)96 mm (3.8 inches)81%very high
August Weather25°C (76°F)130 mm (5.1 inches)80%very high
September Weather22°C (73°F)59 mm (2.3 inches)76%very high
October Weather15°C (59°F)103 mm (4.1 inches)76%high
November Weather7°C (44°F)75 mm (3.0 inches)85%moderate
December Weather4°C (39°F)62 mm (2.4 inches)86%moderate

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