Marion County (Indianapolis)
October
Weather in Marion County, Indiana for October 2026
Your guide to Marion County weather in October - trends and predictions
So far, October 2026 in Marion County is slightly warmer than the historical average by 2 °C.
In general, the average temperature in Marion County at the beginning of October is 24.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °C by the end of October.
Marion County experiences moderate rainfall in October, with an average of 6 rainy days and a total precipitation of 97.8 mm.
Is October a good time to visit Marion County? check out the best time to travel to Marion County page.
✨ Is October a good time to visit Marion County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
25
Dry days
6
Rainy days
0
Snow days
20°/9°
Temperatures
16 km/h
Avg max wind
63 %
Avg humidity
Marion County Weather October
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Temperatures trend during October in Marion County
See the weather trend as well as the moving average line
October weather in Marion County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Mist | 27° /15° | 0 mm | 5 | |
| Oct. 2 |  Light rain | 25° /12° | 3.1 mm | 5 | |
| Oct. 3 |  Sunny | 26° /12° | 0 mm | 5.5 | |
| Oct. 4 |  Overcast | 26° /14° | 0 mm | 5.4 | |
| Oct. 5 | Light rain | 25° /14° | 8.3 mm | 5.3 | |
| Oct. 6 |  Patchy rain possible | 23° /12° | 1.4 mm | 5 | |
| Oct. 7 | Overcast | 21° /10° | 0 mm | 4 | |
| Oct. 8 | Overcast | 21° /8° | 0 mm | 5 | |
| Oct. 9 | Sunny | 22° /8° | 0.8 mm | 4.9 | |
| Oct. 10 | Sunny | 20° /8° | 0 mm | 4 | |
| Oct. 11 | Overcast | 21° /10° | 0 mm | 4 | |
| Oct. 12 | Overcast | 25° /11° | 0 mm | 4.7 | |
| Oct. 13 | Patchy rain possible | 25° /14° | 1.6 mm | 4.6 | |
| Oct. 14 | Light drizzle | 20° /12° | 2 mm | 4 | |
| Oct. 15 | Patchy rain possible | 16° /11° | 1.9 mm | 3 | |
| Oct. 16 | Patchy rain possible | 16° /8° | 2.2 mm | 3 | |
| Oct. 17 | Overcast | 17° /6° | 0 mm | 4 | |
| Oct. 18 |  Moderate rain | 20° /7° | 12.9 mm | 4.2 | |
| Oct. 19 |  Heavy rain | 20° /8° | 37.9 mm | 4.1 | |
| Oct. 20 | Light rain shower | 20° /7° | 0.6 mm | 4 | |
| Oct. 21 | Sunny | 21° /8° | 0 mm | 4 | |
| Oct. 22 | Sunny | 20° /7° | 0 mm | 3.9 | |
| Oct. 23 |  Partly cloudy | 19° /6° | 0 mm | 3.8 | |
| Oct. 24 | Overcast | 19° /6° | 0 mm | 3.8 | |
| Oct. 25 | Light rain | 21° /9° | 2.5 mm | 3.7 | |
| Oct. 26 | Overcast | 20° /11° | 0 mm | 3.6 | |
| Oct. 27 | Patchy rain possible | 20° /11° | 1.7 mm | 3.5 | |
| Oct. 28 | Overcast | 18° /7° | 0.8 mm | 3 | |
| Oct. 29 | Moderate rain | 17° /11° | 8.2 mm | 3 | |
| Oct. 30 | Light rain | 16° /8° | 2.6 mm | 3 | |
| Oct. 31 | Overcast | 20° /13° | 0 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Marion County in October 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 Marion County forecast closer to your planned date for the most up-to-date weather information.
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Marion County in October - FAQ
What are the expected maximum and minimum temperatures in Marion County during October?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Marion County during October?
Moderate rainfall is anticipated in Marion County during October, with a total of 97.8 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Marion County during October?
The average wind speed in Marion County during October is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Marion County
Explore the daily rainfall trends and prepare for Marion Countys October weather 💧
Typically, Marion County has 6 rainy days in October with a total of 97.8 mm of rainfall.
UV exposure in Marion County during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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