Weather forecast for 10 daysEureka, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 55°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 9mphWSW 248°
  • Humidity: 97%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:31 pm PDT
  • ▼
On Sunday, in Eureka, expect continuous cloudiness with subdued daylight.
The daytime temperature will peak at a moderate 55.4°F, slightly differing from the night's low of a brisk 46.4°F.
Tomorrow, the forecast leans colder as the expected high better matches November's average of 56.5°F.
Sunrise will be at 7:31 am and sunset at 6:31 pm; tomorrow's daylight will last for 11h and 0min.

10-day overview

Daily temperatures

Warmest period: Monday - Wednesday 59°C.
Minimum temperature: 55°C.

Chance of precipitation

Highest chance: Sunday 25.10. 36%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 50°F
Fog Early / Clouds Late
Fog Early / Clouds Late
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 9mphW 263°
  • Humidity: 97%
  • UV index: 0
  • Sunrise: 7:30 am PDT
  • Sunset: 6:33 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 55°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 9mphWSW 248°
  • Humidity: 97%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:31 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 59°F
  • 45°F
Cloudy
Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 9mphWSW 238°
  • Humidity: 78%
  • UV index: 4
  • Sunrise: 7:32 am PDT
  • Sunset: 6:30 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 59°F
  • 46°F
Cloudy
Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphWSW 255°
  • Humidity: 84%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:28 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 59°F
  • 48°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 9mphW 264°
  • Humidity: 88%
  • UV index: 4
  • Sunrise: 7:34 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 55°F
  • 46°F
Cloudy
Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 12mphWNW 292°
  • Humidity: 95%
  • UV index: 2
  • Sunrise: 7:36 am PDT
  • Sunset: 6:26 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 55°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 15mphNNW 346°
  • Humidity: 89%
  • UV index: 4
  • Sunrise: 7:37 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 45°F
PM Showers
PM Showers
  • Precip. probability: 34%
  • Precipitation: 0.16"
  • Wind: 12mphW 259°
  • Humidity: 86%
  • UV index: 2
  • Sunrise: 7:38 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 43°F
AM Showers
AM Showers
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Wind: 11mphW 261°
  • Humidity: 83%
  • UV index: 3
  • Sunrise: 7:39 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 10mphW 275°
  • Humidity: 83%
  • UV index: 3
  • Sunrise: 7:40 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
During the ten-day period, primarily gloomy and occasionally showery and low-visibility weather is predicted.
Rain is forecasted for next Saturday and Sunday.
Fluctuations in temperature will be barely perceptible in the upcoming period. The maximum temperature will vary between 55.4°F and 59°F, while the low temperature range extends from 42.8°F to 50°F.
With a maximum temperature of 59°F, Monday through Wednesday will be the warmest days in Eureka; with a maximum temperature of 55.4°F, Sunday, Thursday through next Saturday will be the coldest days in Eureka.
Updated: Oct 17, 2026 @ 23:13:26 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, clouds will dominate overhead, keeping the atmosphere dull.

Tomorrow, the maximum temperature will be 55.4°F, while the minimum temperature will be 46.4°F.
The highest temperature tomorrow will be slightly cooler than the average maximum temperature in October. The lowest temperature will be in line with the average low of 50°F.

On Sunday, in Eureka, sunrise will be at 7:31 am and sunset at 6:31 pm (PDT).

In Eureka, the length of the day tomorrow will be 11h and 0min.