October
Weather in Connecticut for October 2025
Your guide to Connecticut weather in October - trends and predictions
In general, the average temperature in Connecticut at the beginning of October is 20.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.6 °F by the end of October.
Connecticut sees moderate rainfall in October, averaging 9 rainy days.
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22
Dry days
9
Rainy days
0
Snow days
18°/11°
Temperatures
18 km/h
Avg max wind
75 %
Avg humidity
Connecticut in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  20° | 3  21° | 4 21° | 5 22° | ||
| 6  19° | 7  19° | 8 16° | 9 18° | 10 17° | 11  20° | 12  19° |
| 13 18° | 14 15° | 15 14° | 16 14° | 17 15° | 18 18° | 19 19° |
| 20 16° | 21  19° | 22 16° | 23 15° | 24 16° | 25 16° | 26 19° |
| 27 17° | 28 19° | 29  14° | 30 15° | 31 16° |
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Temperatures trend during October in Connecticut
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 | Sunny | 21° /13° | 0 mm | 5 | |
| Oct. 2 | Cloudy | 20° /13° | 0 mm | 5 | |
| Oct. 3 | Fog | 21° /14° | 0 mm | 5 | |
| Oct. 4 | Fog | 21° /16° | 0 mm | 5 | |
| Oct. 5 | Fog | 22° /16° | 1.7 mm | 5 | |
| Oct. 6 | Light drizzle | 19° /14° | 0.7 mm | 5 | |
| Oct. 7 | Light rain shower | 19° /13° | 19.5 mm | 4 | |
| Oct. 8 | Patchy rain possible | 16° /9° | 0.1 mm | 4 | |
| Oct. 9 | Patchy rain possible | 18° /11° | 0 mm | 4 | |
| Oct. 10 | Light rain shower | 17° /10° | 2.5 mm | 5 | |
| Oct. 11 | Partly cloudy | 20° /9° | 0 mm | 6 | |
| Oct. 12 | Overcast | 19° /12° | 0 mm | 5 | |
| Oct. 13 | Sunny | 18° /9° | 0.6 mm | 5 | |
| Oct. 14 | Light rain | 15° /8° | 3.8 mm | 4 | |
| Oct. 15 | Patchy rain possible | 14° /7° | 0.1 mm | 4 | |
| Oct. 16 | Patchy rain possible | 14° /6° | 0.2 mm | 4 | |
| Oct. 17 | Patchy rain possible | 15° /7° | 0.1 mm | 4 | |
| Oct. 18 | Patchy rain possible | 18° /10° | 0.1 mm | 5 | |
| Oct. 19 | Overcast | 19° /10° | 0 mm | 5 | |
| Oct. 20 | Light rain shower | 16° /13° | 30.1 mm | 4 | |
| Oct. 21 | Moderate or heavy rain shower | 19° /12° | 9.1 mm | 5 | |
| Oct. 22 | Patchy rain possible | 16° /10° | 0 mm | 5 | |
| Oct. 23 | Cloudy | 15° /9° | 0 mm | 4 | |
| Oct. 24 | Overcast | 16° /8° | 0 mm | 4 | |
| Oct. 25 | Overcast | 16° /9° | 0 mm | 4 | |
| Oct. 26 | Cloudy | 19° /12° | 0.5 mm | 5 | |
| Oct. 27 | Fog | 17° /9° | 0 mm | 5 | |
| Oct. 28 | Cloudy | 19° /11° | 0 mm | 5 | |
| Oct. 29 | Moderate rain | 14° /10° | 14 mm | 3 | |
| Oct. 30 | Moderate rain | 15° /10° | 5.2 mm | 4 | |
| Oct. 31 | Partly cloudy | 16° /9° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Connecticut 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 Connecticut forecast closer to your planned date for the most up-to-date weather information.
Connecticut in October - FAQ
What are the expected maximum and minimum temperatures in Connecticut during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Connecticut during October?
Significant rainfall exceeding 110.9 mm is expected in Connecticut during October, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Connecticut during October?
The average wind speed in Connecticut during October is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Connecticut
Explore the daily rainfall trends and prepare for Connecticuts October weather 💧
UV exposure in Connecticut during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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