Lafayette (IN)
September
Weather in Lafayette, Indiana for September 2026
Your guide to Lafayette weather in September - trends and predictions
In general, the average temperature in Lafayette at the beginning of September is 23.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 26.6 °F by the end of September.
Lafayette experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 91.7 mm.
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Temperatures
Rain 🌧️
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24
Dry days
6
Rainy days
0
Snow days
26°/13°
Temperatures
15 km/h
Avg max wind
73 %
Avg humidity
Lafayette Weather September
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Temperatures trend during September in Lafayette
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September weather in Lafayette day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Mist | 26° /8° | 0 mm | 6 | |
| Sept. 2 | Mist | 25° /11° | 0 mm | 6 | |
| Sept. 3 |  Moderate rain at times | 26° /13° | 5.9 mm | 6 | |
| Sept. 4 | Mist | 20° /11° | 11.7 mm | 5 | |
| Sept. 5 |  Overcast | 21° /9° | 0 mm | 5 | |
| Sept. 6 | Mist | 22° /7° | 0 mm | 5 | |
| Sept. 7 |  Partly cloudy | 22° /9° | 0 mm | 6 | |
| Sept. 8 |  Sunny | 22° /5° | 0 mm | 6 | |
| Sept. 9 |  Cloudy | 23° /7° | 0 mm | 5 | |
| Sept. 10 | Partly cloudy | 25° /11° | 0 mm | 7 | |
| Sept. 11 | Cloudy | 27° /17° | 0 mm | 6 | |
| Sept. 12 | Overcast | 29° /12° | 0 mm | 6 | |
| Sept. 13 |  Thundery outbreaks possible | 24° /15° | 0 mm | 5 | |
| Sept. 14 | Thundery outbreaks possible | 33° /19° | 0 mm | 7 | |
| Sept. 15 | Fog | 31° /16° | 0 mm | 7 | |
| Sept. 16 | Mist | 30° /15° | 0 mm | 7 | |
| Sept. 17 | Partly cloudy | 29° /16° | 0 mm | 7 | |
| Sept. 18 | Partly cloudy | 30° /18° | 0 mm | 8 | |
| Sept. 19 | Thundery outbreaks possible | 30° /15° | 0 mm | 7 | |
| Sept. 20 | Mist | 27° /17° | 0 mm | 6 | |
| Sept. 21 | Moderate or heavy rain shower | 22° /17° | 50.6 mm | 5 | |
| Sept. 22 |  Light rain shower | 27° /18° | 9.6 mm | 6 | |
| Sept. 23 | Fog | 27° /19° | 2.1 mm | 6 | |
| Sept. 24 | Light rain shower | 22° /19° | 11.8 mm | 5 | |
| Sept. 25 | Fog | 22° /17° | 0 mm | 5 | |
| Sept. 26 | Fog | 25° /9° | 0 mm | 6 | |
| Sept. 27 | Sunny | 28° /12° | 0 mm | 7 | |
| Sept. 28 | Sunny | 30° /14° | 0 mm | 8 | |
| Sept. 29 | Mist | 30° /13° | 0 mm | 7 | |
| Sept. 30 | Mist | 29° /13° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Lafayette 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 Lafayette forecast closer to your planned date for the most up-to-date weather information.
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Lafayette in September - FAQ
What are the expected maximum and minimum temperatures in Lafayette during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Lafayette during September?
Moderate rainfall is anticipated in Lafayette during September, with a total of 91.7 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Lafayette during September?
The average wind speed in Lafayette during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Lafayette
Explore the daily rainfall trends and prepare for Lafayettes September weather 💧
UV exposure in Lafayette during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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