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United States weather

Weather in Seattle, Washington for October 2026

Your guide to Seattle weather in October - trends and predictions

    Temperatures

  • Until now, October 2026 in Seattle has been nearly identical to the historical average, with a temperature of 17 °C (showing only a slight deviation of 0.2 °C).

  • The forecast for the next days in Seattle predicts temperatures to be around 12 °C, close to the historical average.

  • In general, the average temperature in Seattle at the beginning of October is 19.5 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.7 °C by the end of October.

    • Rain 🌧️

  • The climate of Seattle in October is notably wet, with an average of 11 rainy days, and a total of 129.9 mm of precipitation.

    • More

  • Is October a good time to visit Seattle? check out the best time to travel to Seattle page.

  • ✨ Is October a good time to visit Seattle? – Ask the AI Weatherman

Average dry days
20
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/8°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Seattle Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
19°
2
Cloudy
19°
3
Partly cloudy
19°
4
Patchy rain possible
19°
5
Patchy rain possible
18°
6
Patchy rain possible
21°
7
Cloudy
22°
8
Overcast
19°
9
Moderate rain at times
16°
10
Moderate or heavy rain shower
16°
11
Patchy rain possible
15°
12
Light rain
17°
13
Overcast
18°
14
Patchy rain possible
17°
15
Patchy rain possible
18°
16
Light rain
18°
17
Patchy rain possible
15°
18
Overcast
16°
19
Light rain
18°
20
Patchy rain possible
16°
21
Light rain
16°
22
Patchy rain possible
15°
23
Overcast
13°
24
Heavy rain at times
12°
25
Moderate or heavy rain shower
11°
26
Patchy rain possible
12°
27
Light rain
13°
28
Light rain
11°
29
Patchy rain possible
13°
30
Patchy rain possible
11°
31
Patchy rain possible
9°

Temperatures trend during October in Seattle

See the weather trend as well as the moving average line

October weather in Seattle day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Cloudy
Cloudy
 19° /9° 0.2 mm 3.9
Oct. 2 Cloudy
Cloudy
 19° /11° 0.2 mm 3.8
Oct. 3 Partly cloudy
Partly cloudy
 19° /10° 0.5 mm 3.7
Oct. 4 Patchy rain possible
Patchy rain possible
 19° /10° 2.3 mm 3.7
Oct. 5 Patchy rain possible
Patchy rain possible
 18° /10° 1 mm 3.6
Oct. 6 Patchy rain possible
Patchy rain possible
 21° /9° 1.9 mm 3.5
Oct. 7 Cloudy
Cloudy
 22° /10° 0 mm 3.4
Oct. 8 Overcast
Overcast
 19° /10° 0.5 mm 3.3
Oct. 9 Moderate rain at times
Moderate rain at times
 16° /10° 5.3 mm 3
Oct. 10 Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /9° 9.1 mm 3
Oct. 11 Patchy rain possible
Patchy rain possible
 15° /8° 1.9 mm 3.1
Oct. 12 Light rain
Light rain
 17° /6° 4.1 mm 3
Oct. 13 Overcast
Overcast
 18° /8° 0.8 mm 3
Oct. 14 Patchy rain possible
Patchy rain possible
 17° /9° 2.4 mm 2.9
Oct. 15 Patchy rain possible
Patchy rain possible
 18° /9° 2.4 mm 2.8
Oct. 16 Light rain
Light rain
 18° /9° 3.1 mm 2.8
Oct. 17 Patchy rain possible
Patchy rain possible
 15° /9° 1.1 mm 2.7
Oct. 18 Overcast
Overcast
 16° /8° 0 mm 2.6
Oct. 19 Light rain
Light rain
 18° /8° 2.6 mm 2.6
Oct. 20 Patchy rain possible
Patchy rain possible
 16° /10° 2.2 mm 2.5
Oct. 21 Light rain
Light rain
 16° /8° 3.7 mm 2.4
Oct. 22 Patchy rain possible
Patchy rain possible
 15° /8° 1.2 mm 2.4
Oct. 23 Overcast
Overcast
 13° /7° 0.8 mm 2.3
Oct. 24 Heavy rain at times
Heavy rain at times
 12° /7° 12.4 mm 2.3
Oct. 25 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /6° 6.8 mm 2
Oct. 26 Patchy rain possible
Patchy rain possible
 12° /8° 1.6 mm 0.2
Oct. 27 Light rain
Light rain
 13° /8° 2.9 mm 1.5
Oct. 28 Light rain
Light rain
 11° /6° 8.1 mm 1
Oct. 29 Patchy rain possible
Patchy rain possible
 13° /5° 2.5 mm 1.6
Oct. 30 Patchy rain possible
Patchy rain possible
 11° /4° 1.1 mm 4
Oct. 31 Patchy rain possible
Patchy rain possible
 9° /3° 1.6 mm 2
Next
Important Notice
Our weather forecast for Seattle 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 Seattle forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Seattle in October - FAQ

What are the expected maximum and minimum temperatures in Seattle during October?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Seattle during October?
Significant rainfall exceeding 129.9 mm is expected in Seattle during October, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Seattle during October?
The average wind speed in Seattle during October is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Seattle

Explore the daily rainfall trends and prepare for Seattles October weather 💧
Typically, Seattle has 11 rainy days in October with a total of 129.9 mm of rainfall.

UV exposure in Seattle during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Get accurate weather forecasts for Seattle, located at latitude 47.606 and longitude -122.332. Stay updated with localized weather information tailored for Seattle.

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