Weather forecast for 10 daysPetersburg, OR

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 68°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphNE 48°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:25 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
On Sunday, in Petersburg, a bright and mostly cloud-free sky is in store.
Temperatures will oscillate between a pleasant 68°F at their highest and a chilly 44.6°F at their lowest.
Today, the maximum temperature will be higher and more reflective of September's average high of 71.6°F than October's of 57.9°F.
Sunrise will be at 7:25 am and sunset at 6:13 pm; the daylight will last for 10h and 49min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 70°C.
Coldest day: Saturday 55°C.

Chance of precipitation

Highest chance: Sunday 25.10. 34%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 68°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphNE 48°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:25 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 43°F
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphWNW 292°
  • Humidity: 52%
  • UV index: 2
  • Sunrise: 7:26 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphNE 54°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:27 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphN 353°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 18mphWNW 294°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 7:30 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 61°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 14mphWNW 287°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:32 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 7mphNNW 336°
  • Humidity: 67%
  • UV index: 2
  • Sunrise: 7:33 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 39°F
AM Showers
AM Showers
  • Precip. probability: 34%
  • Precipitation: 0.04"
  • Wind: 7mphNW 312°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 7:34 am PDT
  • Sunset: 6:01 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 7mphNW 310°
  • Humidity: 66%
  • UV index: 2
  • Sunrise: 7:36 am PDT
  • Sunset: 6:00 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 57°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 7mphWNW 300°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:37 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
For the next ten days, a combination of primarily cloud-filled and occasionally sunny and rain-filled weather is expected.
With a probability of 34%, rainfall is predicted only for next Sunday. The precipitation will be minimal at 0.04".
The temperature will vary considerably across the forecast period. Forecast highs will fluctuate between 55.4°F and 69.8°F, while the forecast minimum temperature falls between 37.4°F and 44.6°F.
Tuesday and Wednesday, with the highest temperature of 69.8°F, will be the warmest days; the lowest daytime temperature of the period will be reached on Saturday, peaking at 55.4°F.
Updated: Oct 18, 2026 @ 12:22:12 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, a crisp, sunny atmosphere is likely.

Today, the highest temperature will be 68°F, while the lowest temperature will be 44.6°F.
The maximum temperature today will be noticeably higher than the average highest temperature of 57.9°F in October. The lowest temperature today will be in line with the average low temperature.

On Sunday, in Petersburg, sunrise will be at 7:25 am and sunset at 6:13 pm (PDT).

In Petersburg, Oregon, today, there will be 10h and 49min of daylight.