Weather forecast for 10 daysSaint Helens, OR
Weather forecast for the weekend
Sunday Oct 18, 2026
- 64°F
- 45°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphNNW 337°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:32 am PDT
- Sunset: 6:20 pm PDT
- details ▼
Today, on Sunday, October 18, mostly sunny and dry conditions will continue.
The temperature scale will run from a maximum of a comfortable 64.4°F to a minimum of a chilly 44.6°F.
Meteorological data shows 64.4°F is more characteristic of September's climate profile than October's.
Sunrise will be at 7:32 am and sunset at 6:20 pm; the daylight will last for 10h and 47min.
The temperature scale will run from a maximum of a comfortable 64.4°F to a minimum of a chilly 44.6°F.
Meteorological data shows 64.4°F is more characteristic of September's climate profile than October's.
Sunrise will be at 7:32 am and sunset at 6:20 pm; the daylight will last for 10h and 47min.
10-day overview
Daily temperatures
Warmest period: Tuesday - Wednesday 72°C.
Coldest day: Saturday 54°C.
Coldest day: Saturday 54°C.
Chance of precipitation
Highest chance: Sunday 25.10. 43%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 64°F
- 45°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphNNW 337°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:32 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 45°F
Mostly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 5mphESE 108°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:33 am PDT
- Sunset: 6:18 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 45°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphNNW 340°
- Humidity: 58%
- UV index: 3
- Sunrise: 7:35 am PDT
- Sunset: 6:16 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 72°F
- 45°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 6mphNNW 336°
- Humidity: 56%
- UV index: 3
- Sunrise: 7:36 am PDT
- Sunset: 6:15 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 63°F
- 43°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 8mphNW 318°
- Humidity: 71%
- UV index: 2
- Sunrise: 7:38 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0.04"
- Wind: 6mphWNW 284°
- Humidity: 71%
- UV index: 3
- Sunrise: 7:39 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 54°F
- 43°F
Showers
- Precip. probability: 40%
- Precipitation: 0.24"
- Wind: 7mphSE 133°
- Humidity: 81%
- UV index: 2
- Sunrise: 7:40 am PDT
- Sunset: 6:10 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 57°F
- 43°F
Showers
- Precip. probability: 43%
- Precipitation: 0.16"
- Wind: 7mphESE 120°
- Humidity: 79%
- UV index: 2
- Sunrise: 7:42 am PDT
- Sunset: 6:08 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 59°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 6mphE 96°
- Humidity: 74%
- UV index: 3
- Sunrise: 7:43 am PDT
- Sunset: 6:06 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 57°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 6mphSE 133°
- Humidity: 78%
- UV index: 2
- Sunrise: 7:44 am PDT
- Sunset: 6:05 pm PDT
- details ▼
During the ten-day period, cloud-filled, dry and sunny and rainy weather is expected.
Rainfall is forecasted for Friday through next Sunday.
The temperature will vary considerably in the coming days. The temperature is expected to swing from 53.6°F up to 71.6°F, while the lowest nighttime temperatures will be relatively consistent, as night temperatures will lie between 41°F and 44.6°F.
The warmest days will be Tuesday and Wednesday, with a maximum of 71.6°F; expect the coldest day on Saturday with a high of 53.6°F.
Rainfall is forecasted for Friday through next Sunday.
The temperature will vary considerably in the coming days. The temperature is expected to swing from 53.6°F up to 71.6°F, while the lowest nighttime temperatures will be relatively consistent, as night temperatures will lie between 41°F and 44.6°F.
The warmest days will be Tuesday and Wednesday, with a maximum of 71.6°F; expect the coldest day on Saturday with a high of 53.6°F.
Updated: Oct 18, 2026 @ 10:35:17 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, mostly sunny and dry conditions will continue.
Today, the maximum temperature will be 64.4°F, while the minimum temperature will be 44.6°F.
The maximum temperature today will be a couple of degrees higher than the average highest temperature in October. Today, the lowest temperature will be in line with the average low temperature.
The maximum temperature today will be a couple of degrees higher than the average highest temperature in October. Today, the lowest temperature will be in line with the average low temperature.
On Sunday, in Saint Helens, sunrise will be at 7:32 am and sunset at 6:20 pm (PDT).
Today, the daylight will last for 10h and 47min.
