Louisville
September
Weather in Louisville for September 2025
Your guide to Louisville weather in September - trends and predictions
In general, the average temperature in Louisville at the beginning of September is 31.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.3 °F by the end of September.
Louisville experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 170.8 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
21
Dry days
9
Rainy days
0
Snow days
28°/16°
Temperatures
13 km/h
Avg max wind
61 %
Avg humidity
Louisville in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  33° | 2  32° | 3  31° | 4 33° | 5  33° | 6  33° | 7 25° |
| 8  26° | 9 29° | 10 31° | 11 32° | 12 28° | 13 27° | 14 29° |
| 15 30° | 16 30° | 17  28° | 18 26° | 19 28° | 20 31° | 21 32° |
| 22 31° | 23 26° | 24 26° | 25 25° | 26 27° | 27 25° | 28 23° |
| 29 25° | 30 26° |
You can click on date
Access Louisville weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Louisville
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Sunny | 33° /16° | 0.3 mm | 8 | |
| Sept. 2 | Mist | 32° /17° | 0 mm | 7 | |
| Sept. 3 | Partly cloudy | 31° /16° | 0 mm | 7 | |
| Sept. 4 | Partly cloudy | 33° /20° | 0 mm | 8 | |
| Sept. 5 | Overcast | 33° /21° | 0 mm | 8 | |
| Sept. 6 | Light rain shower | 33° /20° | 6.5 mm | 7 | |
| Sept. 7 | Overcast | 25° /13° | 0.4 mm | 6 | |
| Sept. 8 | Cloudy | 26° /11° | 0.8 mm | 6 | |
| Sept. 9 | Overcast | 29° /14° | 0 mm | 7 | |
| Sept. 10 | Partly cloudy | 31° /15° | 0 mm | 8 | |
| Sept. 11 | Mist | 32° /15° | 0 mm | 8 | |
| Sept. 12 | Overcast | 28° /18° | 0 mm | 7 | |
| Sept. 13 | Mist | 27° /14° | 5.1 mm | 6 | |
| Sept. 14 | Sunny | 29° /14° | 0.1 mm | 7 | |
| Sept. 15 | Sunny | 30° /15° | 0 mm | 8 | |
| Sept. 16 | Overcast | 30° /14° | 0 mm | 7 | |
| Sept. 17 | Patchy light rain with thunder | 28° /14° | 1.5 mm | 7 | |
| Sept. 18 | Mist | 26° /14° | 0 mm | 6 | |
| Sept. 19 | Sunny | 28° /14° | 0 mm | 7 | |
| Sept. 20 | Partly cloudy | 31° /17° | 0 mm | 8 | |
| Sept. 21 | Cloudy | 32° /20° | 0 mm | 7 | |
| Sept. 22 | Partly cloudy | 31° /19° | 3.2 mm | 8 | |
| Sept. 23 | Sunny | 26° /18° | 3.7 mm | 6 | |
| Sept. 24 | Overcast | 26° /15° | 17.2 mm | 6 | |
| Sept. 25 | Patchy rain possible | 25° /17° | 0 mm | 6 | |
| Sept. 26 | Patchy rain possible | 27° /16° | 0.4 mm | 6 | |
| Sept. 27 | Patchy light rain with thunder | 25° /17° | 41.2 mm | 6 | |
| Sept. 28 | Patchy light rain with thunder | 23° /17° | 75.3 mm | 5 | |
| Sept. 29 | Mist | 25° /15° | 15.1 mm | 6 | |
| Sept. 30 | Mist | 26° /15° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Louisville in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Louisville forecast closer to your planned date for the most up-to-date weather information.
Louisville in September - FAQ
What are the expected maximum and minimum temperatures in Louisville during September?
During September, expect a variety of temperatures with highs around 28° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Louisville during September?
Significant rainfall exceeding 170.8 mm is expected in Louisville during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Louisville during September?
The average wind speed in Louisville during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Louisville
Explore the daily rainfall trends and prepare for Louisvilles September weather 💧
UV exposure in Louisville during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
You are here
Where is Louisville?Get accurate weather forecasts for Louisville, located at latitude 38.254 and longitude -85.759. Stay updated with localized weather information tailored for Louisville.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.