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United States weather

Weather in King County, Washington for October 2027

Your guide to King County weather in October - trends and predictions

    Temperatures

  • In general, the average temperature in King County 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 King County 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 King County? check out the best time to travel to King County page.

  • ✨ Is October a good time to visit King County? – 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

King County 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
Moderate rain at times
11°
27
Moderate rain
12°
28
Moderate rain
12°
29
Moderate rain at times
12°
30
Moderate rain
11°
31
Light rain
13°

Temperatures trend during October in King County

See the weather trend as well as the moving average line

October weather in King County 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 Moderate rain at times
Moderate rain at times
 11° /7° 5.3 mm 2
Oct. 27 Moderate rain
Moderate rain
 12° /7° 10.3 mm 2.1
Oct. 28 Moderate rain
Moderate rain
 12° /6° 14.4 mm 2.1
Oct. 29 Moderate rain at times
Moderate rain at times
 12° /5° 6 mm 2
Oct. 30 Moderate rain
Moderate rain
 11° /5° 10.9 mm 2
Oct. 31 Light rain
Light rain
 13° /4° 8.7 mm 1.9
Next
Important Notice
Our weather forecast for King 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 King County forecast closer to your planned date for the most up-to-date weather information.
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King County in October - FAQ

What are the expected maximum and minimum temperatures in King County 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 King County during October?
Significant rainfall exceeding 129.9 mm is expected in King County during October, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.

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

October rainfall patterns in King County

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

UV exposure in King County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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