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September Weather in Homer Glen, United States

Last updated: June 24, 2025

In September, the average temperature in Homer Glen, United States is a pleasant 20°C (68°F), with a minimum of 3°C (39°F) and a maximum of 34°C (94°F). Expect 81 mm (3.2 in) of precipitation over 9 days, contributing to an average humidity of 80%. Enjoy the mild climate and the refreshing atmosphere!

September Temperature in Homer Glen

In September in Homer Glen, the average temperature is 20°C (68°F). Maximums can reach 34°C (94°F), while minimums can dip to as low as 3°C (39°F). This variation in temperature means travelers should prepare for both warm days and cool nights.

September Weather in Homer Glen: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Homer Glen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Homer Glen, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec262840496172767368553934
Data source: Temperature data for Homer Glen 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.

September Precipitation in Homer Glen

In Homer Glen in September, the precipitation amount is 81 mm (3.2 in) spread over a duration of 9 days.

September Precipitation Trends in Homer Glen

The chart displays monthly precipitation patterns in Homer Glen, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Homer Glen, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec65679312215914311486821386156
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Homer Glen

In Homer Glen in September, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

September Average Humidity in Homer Glen

This chart illustrates the average monthly humidity levels in Homer Glen, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Homer Glen is approximately 80%, 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Homer Glen

In Homer Glen in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Homer Glen.

Maximum UV Index Levels in Homer Glen for September

The chart shows the monthly maximum UV Index (UVI) for Homer Glen in September, 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 September, the maximum UV index in Homer Glen typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Homer Glen September 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 September Weather in Homer Glen Compares to Other Months

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

This table compares monthly weather conditions in Homer Glen, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)65 mm (2.6 inches)82%moderate
February Weather-2°C (29°F)67 mm (2.6 inches)83%moderate
March Weather4°C (40°F)93 mm (3.7 inches)84%high
April Weather9°C (49°F)122 mm (4.8 inches)85%very high
May Weather16°C (62°F)159 mm (6.3 inches)79%very high
June Weather22°C (72°F)143 mm (5.6 inches)82%very high
July Weather24°C (76°F)114 mm (4.5 inches)80%very high
August Weather23°C (74°F)86 mm (3.4 inches)81%very high
September Weather20°C (68°F)81 mm (3.2 inches)80%very high
October Weather13°C (55°F)138 mm (5.4 inches)82%high
November Weather4°C (40°F)61 mm (2.4 inches)88%moderate
December Weather1°C (34°F)56 mm (2.2 inches)84%low

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