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October Weather in Rock Falls, United States

Last updated: June 24, 2025

In Rock Falls, United States, the average temperature in October sits at a cool 12°C (54°F). Expect a range where the minimum dips to -5°C (24°F) and can soar up to a balmy 31°C (89°F). This month brings 115 mm (4.5 in) of precipitation over approximately 12 days, contributing to an average humidity level of 82%. Stay prepared for a mix of weather!

October Temperature in Rock Falls

In October in Rock Falls, the average temperature is 12°C (54°F). The maximum can reach 31°C (89°F), while the minimum can drop as low as -5°C (24°F). Pack a variety of clothing to ensure you're comfortable whether you're enjoying warm days or chilly nights.

October Weather in Rock Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Rock Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rock Falls, October typically has an average temperature of 12°C (54°F), with highs reaching up to 31°C (89°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec232640496273767368543932
Data source: Temperature data for Rock Falls 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 Rock Falls

In Rock Falls in October, the total precipitation amount is 115 mm (4.5 in) over a span of 12 days.

October Precipitation Trends in Rock Falls

The chart displays monthly precipitation patterns in Rock Falls, 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 Rock Falls, October typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec59598611015714198731151155250
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Rock Falls

In Rock Falls 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 Rock Falls

This chart illustrates the average monthly humidity levels in Rock Falls, 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 Rock Falls 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 Rock Falls

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

Maximum UV Index Levels in Rock Falls for October

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

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

This table compares monthly weather conditions in Rock Falls, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)59 mm (2.3 inches)82%moderate
February Weather-3°C (26°F)59 mm (2.3 inches)83%moderate
March Weather4°C (40°F)86 mm (3.4 inches)84%high
April Weather9°C (49°F)110 mm (4.3 inches)85%very high
May Weather17°C (62°F)157 mm (6.2 inches)79%very high
June Weather23°C (73°F)141 mm (5.6 inches)82%very high
July Weather24°C (76°F)98 mm (3.8 inches)80%very high
August Weather23°C (73°F)73 mm (2.9 inches)81%very high
September Weather20°C (68°F)115 mm (4.5 inches)80%very high
October Weather12°C (54°F)115 mm (4.5 inches)82%high
November Weather4°C (39°F)51 mm (2.0 inches)88%moderate
December Weather0°C (32°F)50 mm (2.0 inches)84%low

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