Weather forecast for 10 daysArcata, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 57°F
- 45°F
AM Fog / PM Clouds
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 7mphSW 234°
- Humidity: 93%
- UV index: 3
- Sunrise: 7:31 am PDT
- Sunset: 6:31 pm PDT
- details ▼
Today, on Sunday, October 18, expect fog in the morning, followed by a cloudy and gray afternoon.
The highest temperature will be a refreshing 57.2°F, while the lowest predicted temperature is a chilly 44.6°F.
It will be colder, and the temperature will align more closely with November's average high of 57°F than October's.
Sunrise will be at 7:31 am and sunset at 6:31 pm; the daylight will last for 11h and 0min.
The highest temperature will be a refreshing 57.2°F, while the lowest predicted temperature is a chilly 44.6°F.
It will be colder, and the temperature will align more closely with November's average high of 57°F than October's.
Sunrise will be at 7:31 am and sunset at 6:31 pm; the daylight will last for 11h and 0min.
10-day overview
Daily temperatures
Warmest day: Wednesday 63°C.
Coldest day: Sunday 25.10. 55°C.
Coldest day: Sunday 25.10. 55°C.
Chance of precipitation
Highest chance: Saturday 53%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 57°F
- 45°F
AM Fog / PM Clouds
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 7mphSW 234°
- Humidity: 93%
- UV index: 3
- Sunrise: 7:31 am PDT
- Sunset: 6:31 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 59°F
- 45°F
Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 6mphWSW 244°
- Humidity: 76%
- UV index: 3
- Sunrise: 7:32 am PDT
- Sunset: 6:29 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 59°F
- 46°F
Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphWSW 246°
- Humidity: 76%
- UV index: 2
- Sunrise: 7:33 am PDT
- Sunset: 6:28 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 63°F
- 48°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphWSW 248°
- Humidity: 80%
- UV index: 3
- Sunrise: 7:34 am PDT
- Sunset: 6:27 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 57°F
- 45°F
Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 9mphWNW 283°
- Humidity: 91%
- UV index: 2
- Sunrise: 7:35 am PDT
- Sunset: 6:25 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 57°F
- 43°F
Mostly Sunny
- Precip. probability: 23%
- Precipitation: 0"
- Wind: 11mphNNW 348°
- Humidity: 82%
- UV index: 4
- Sunrise: 7:36 am PDT
- Sunset: 6:24 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 57°F
- 45°F
PM Showers
- Precip. probability: 53%
- Precipitation: 0"
- Wind: 7mphSW 222°
- Humidity: 78%
- UV index: 3
- Sunrise: 7:38 am PDT
- Sunset: 6:22 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 55°F
- 43°F
Showers
- Precip. probability: 44%
- Precipitation: 0.28"
- Wind: 8mphSW 220°
- Humidity: 83%
- UV index: 3
- Sunrise: 7:39 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 57°F
- 43°F
Mostly Cloudy
- Precip. probability: 19%
- Precipitation: 0.16"
- Wind: 8mphW 274°
- Humidity: 80%
- UV index: 3
- Sunrise: 7:40 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 57°F
- 43°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 9mphWSW 253°
- Humidity: 79%
- UV index: 3
- Sunrise: 7:41 am PDT
- Sunset: 6:18 pm PDT
- details ▼
Over the course of the next ten days, expect shifting weather, and a mix of overcast, rain-soaked, foggy and clear weather is anticipated.
Rainfall is predicted for next Sunday and Monday.
In the upcoming days, the highest temperature will vary between 55.4°F and 62.6°F, while the nighttime low will be mostly stable, as the overnight low will fall between 42.8°F and 48.2°F.
The warmest day will be Wednesday, with a maximum of 62.6°F; the lowest daytime temperature of the period will be reached on next Sunday, peaking at 55.4°F.
Rainfall is predicted for next Sunday and Monday.
In the upcoming days, the highest temperature will vary between 55.4°F and 62.6°F, while the nighttime low will be mostly stable, as the overnight low will fall between 42.8°F and 48.2°F.
The warmest day will be Wednesday, with a maximum of 62.6°F; the lowest daytime temperature of the period will be reached on next Sunday, peaking at 55.4°F.
Updated: Oct 18, 2026 @ 08:57:39 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, dense fog in the morning will clear, but clouds will linger through the afternoon.
Today, the maximum temperature will be 57.2°F, while the minimum temperature will be 44.6°F.
Today, the maximum temperature will be moderately lower than the average highest temperature in October. The lowest temperature today will be also moderately lower than the average low temperature.
Today, the maximum temperature will be moderately lower than the average highest temperature in October. The lowest temperature today will be also moderately lower than the average low temperature.
On Sunday, in Arcata, sunrise will be at 7:31 am and sunset at 6:31 pm (PDT).
Today in Arcata, the daylight will last for 11h and 0min.
