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October Weather in Evanston, United States

Last updated: June 24, 2025

In October, the average temperature in Evanston, United States hovers around 5°C (41°F), with a remarkable range from a frigid -25°C (-14°F) to a balmy 24°C (75°F). You'll likely experience 35 mm (1.4 in) of precipitation spread over 8 days, while the air carries an average humidity of 67%.

October Temperature in Evanston

In October in Evanston, the average temperature is 5°C (41°F), with maximums reaching up to 24°C (75°F) and minimums dropping as low as -25°C (-14°F). Travelers should be prepared for a wide range of temperatures during this time.

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

The chart illustrates October temperature patterns in Evanston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Evanston, October typically has an average temperature of 5°C (41°F), with highs reaching up to 24°C (75°F) and lows dropping to around -25°C (-14°F).
JanFebMarAprMayJunJulAugSepOctNovDec222331384861706758413222
Data source: Temperature data for Evanston 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 Evanston

In Evanston in October, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.

October Precipitation Trends in Evanston

The chart displays monthly precipitation patterns in Evanston, 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 Evanston, October typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec435256506121232127354342
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Evanston

In Evanston in October humidity is 67%. With an average temperature of 5°C (41°F), this humidity feels like a chilly blanket wrapping around you, making outdoor activities brisk and invigorating yet slightly uncomfortable if you're not properly layered.

October Average Humidity in Evanston

This chart illustrates the average monthly humidity levels in Evanston, 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 Evanston is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%84%75%62%56%44%37%46%67%84%88%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Evanston

In Evanston in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Evanston.

Maximum UV Index Levels in Evanston for October

The chart shows the monthly maximum UV Index (UVI) for Evanston 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 Evanston typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110753
Data source: Evanston 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 Evanston Compares to Other Months

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

This table compares monthly weather conditions in Evanston, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)43 mm (1.7 inches)91%moderate
February Weather-5°C (24°F)52 mm (2.1 inches)92%high
March Weather0°C (32°F)55 mm (2.2 inches)84%very high
April Weather3°C (38°F)50 mm (2.0 inches)74%very high
May Weather9°C (48°F)61 mm (2.4 inches)62%extreme
June Weather16°C (61°F)21 mm (0.8 inches)56%extreme
July Weather21°C (70°F)23 mm (0.9 inches)44%extreme
August Weather19°C (67°F)21 mm (0.8 inches)37%extreme
September Weather14°C (58°F)27 mm (1.0 inches)46%very high
October Weather5°C (41°F)35 mm (1.4 inches)67%high
November Weather0°C (33°F)43 mm (1.7 inches)84%moderate
December Weather-5°C (23°F)42 mm (1.7 inches)88%moderate

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