Marion County (Indianapolis)
October
Weather in Marion County for October 2025
Your guide to Marion County weather in October - trends and predictions
In general, the average temperature in Marion County at the beginning of October is 24.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.7 °F by the end of October.
The climate of Marion County in October is notably wet, with an average of 13 rainy days.
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18
Dry days
13
Rainy days
0
Snow days
20°/9°
Temperatures
18 km/h
Avg max wind
62 %
Avg humidity
Marion County in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2  26° | 3 26° | 4  27° | 5  25° | ||
| 6  24° | 7 16° | 8 20° | 9 21° | 10 20° | 11 22° | 12  26° |
| 13 23° | 14 15° | 15 12° | 16 12° | 17 18° | 18  19° | 19 21° |
| 20 19° | 21 22° | 22 21° | 23 20° | 24 21° | 25 24° | 26 21° |
| 27 21° | 28 18° | 29  17° | 30 17° | 31 13° |
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Temperatures trend during October in Marion County
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 | Mist | 28° /14° | 0 mm | 6 | |
| Oct. 2 | Sunny | 26° /11° | 0 mm | 7 | |
| Oct. 3 | Sunny | 26° /12° | 0 mm | 7 | |
| Oct. 4 | Overcast | 27° /13° | 0 mm | 6 | |
| Oct. 5 | Light rain | 25° /14° | 16.6 mm | 6 | |
| Oct. 6 | Patchy rain possible | 24° /11° | 1.1 mm | 6 | |
| Oct. 7 | Overcast | 16° /5° | 0 mm | 4 | |
| Oct. 8 | Overcast | 20° /4° | 0 mm | 5 | |
| Oct. 9 | Light rain | 21° /7° | 1.6 mm | 6 | |
| Oct. 10 | Sunny | 20° /7° | 0 mm | 6 | |
| Oct. 11 | Patchy rain possible | 22° /5° | 0.1 mm | 6 | |
| Oct. 12 | Partly cloudy | 26° /11° | 0 mm | 7 | |
| Oct. 13 | Light drizzle | 23° /12° | 3.2 mm | 6 | |
| Oct. 14 | Light drizzle | 15° /8° | 2.8 mm | 4 | |
| Oct. 15 | Patchy rain possible | 12° /7° | 0 mm | 3 | |
| Oct. 16 | Patchy rain possible | 12° /5° | 2.8 mm | 3 | |
| Oct. 17 | Overcast | 18° /5° | 0 mm | 4 | |
| Oct. 18 | Cloudy | 19° /5° | 0 mm | 5 | |
| Oct. 19 | Overcast | 21° /8° | 0.3 mm | 6 | |
| Oct. 20 | Light rain shower | 19° /8° | 1.3 mm | 5 | |
| Oct. 21 | Overcast | 22° /7° | 0 mm | 6 | |
| Oct. 22 | Patchy rain possible | 21° /6° | 0 mm | 6 | |
| Oct. 23 | Overcast | 20° /6° | 0 mm | 5 | |
| Oct. 24 | Overcast | 21° /6° | 0 mm | 5 | |
| Oct. 25 | Patchy rain possible | 24° /10° | 5.1 mm | 6 | |
| Oct. 26 | Overcast | 21° /13° | 0 mm | 5 | |
| Oct. 27 | Light rain shower | 21° /13° | 3.3 mm | 6 | |
| Oct. 28 | Patchy rain possible | 18° /6° | 1.6 mm | 4 | |
| Oct. 29 | Moderate rain | 17° /11° | 6.3 mm | 4 | |
| Oct. 30 | Overcast | 17° /6° | 5.1 mm | 4 | |
| Oct. 31 | Cloudy | 13° /5° | 5.6 mm | 3 | |
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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.
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 93.4 mm spread over approximately 13 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 18 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 💧
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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Where is Marion County?Get accurate weather forecasts for Marion County, located at latitude 39.768 and longitude -86.158. Stay updated with localized weather information tailored for Marion County.
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