Tri-Cities (WA)
October
Weather in Tri-Cities, Washington for October 2027
Your guide to Tri-Cities weather in October - trends and predictions
In general, the average temperature in Tri-Cities at the beginning of October is 23.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.4 °C by the end of October.
With an average of 2 rainy days, Tri-Cities experiences minimal rainfall in October.
Is October a good time to visit Tri-Cities? check out the best time to travel to Tri-Cities page.
✨ Is October a good time to visit Tri-Cities? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
29
Dry days
2
Rainy days
0
Snow days
18°/6°
Temperatures
17 km/h
Avg max wind
54 %
Avg humidity
Tri-Cities Weather October
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Temperatures trend during October in Tri-Cities
See the weather trend as well as the moving average line
October weather in Tri-Cities day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Overcast | 23° /9° | 0 mm | 4.2 | |
| Oct. 2 | Overcast | 22° /9° | 0 mm | 4 | |
| Oct. 3 |  Cloudy | 23° /7° | 0 mm | 4 | |
| Oct. 4 | Overcast | 23° /9° | 0 mm | 3.9 | |
| Oct. 5 |  Partly cloudy | 24° /9° | 0 mm | 3.9 | |
| Oct. 6 |  Sunny | 24° /7° | 0 mm | 3.8 | |
| Oct. 7 | Sunny | 25° /10° | 0 mm | 3.7 | |
| Oct. 8 | Sunny | 25° /11° | 0 mm | 3.6 | |
| Oct. 9 |  Patchy light drizzle | 22° /10° | 0.1 mm | 3.5 | |
| Oct. 10 | Light drizzle | 19° /8° | 0.5 mm | 3.5 | |
| Oct. 11 | Overcast | 18° /7° | 0.3 mm | 3.4 | |
| Oct. 12 | Overcast | 18° /7° | 0 mm | 3.3 | |
| Oct. 13 |  Mist | 18° /6° | 0 mm | 3.2 | |
| Oct. 14 | Overcast | 21° /8° | 0 mm | 3.2 | |
| Oct. 15 | Cloudy | 20° /9° | 0 mm | 3.1 | |
| Oct. 16 |  Patchy rain possible | 19° /6° | 0.3 mm | 3 | |
| Oct. 17 | Partly cloudy | 19° /7° | 0 mm | 3 | |
| Oct. 18 | Patchy rain possible | 17° /5° | 2.1 mm | 2.9 | |
| Oct. 19 | Overcast | 19° /8° | 0 mm | 2.8 | |
| Oct. 20 | Overcast | 20° /7° | 0 mm | 2.8 | |
| Oct. 21 | Overcast | 19° /7° | 0 mm | 2.7 | |
| Oct. 22 | Patchy rain possible | 17° /6° | 1.2 mm | 2.6 | |
| Oct. 23 | Mist | 16° /6° | 0 mm | 2.6 | |
| Oct. 24 | Overcast | 14° /4° | 0.3 mm | 2.5 | |
| Oct. 25 | Light rain | 13° /3° | 0.9 mm | 2 | |
| Oct. 26 | Patchy rain possible | 13° /4° | 0.1 mm | 2.4 | |
| Oct. 27 | Patchy rain possible | 14° /5° | 0.1 mm | 2.3 | |
| Oct. 28 | Sunny | 12° /3° | 0 mm | 2.3 | |
| Oct. 29 | Sunny | 13° /3° | 0.1 mm | 2.2 | |
| Oct. 30 | Patchy rain possible | 11° /1° | 1.1 mm | 2 | |
| Oct. 31 | Overcast | 11° /2° | 0.9 mm | 2 | |
| Next | |||||
Important Notice
Our weather forecast for Tri-Cities 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 Tri-Cities forecast closer to your planned date for the most up-to-date weather information.
Change Month
Tri-Cities in October - FAQ
What are the expected maximum and minimum temperatures in Tri-Cities during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Tri-Cities during October?
Rainfall in Tri-Cities during October is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Tri-Cities during October?
The average wind speed in Tri-Cities during October is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Tri-Cities
Explore the daily rainfall trends and prepare for Tri-Citiess October weather 💧
Typically, Tri-Cities has 2 rainy days in October with a total of 7.6 mm of rainfall.
UV exposure in Tri-Cities during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Where is Tri-Cities?Get accurate weather forecasts for Tri-Cities, located at latitude 46.245 and longitude -119.196. Stay updated with localized weather information tailored for Tri-Cities.
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