Weather forecast for tomorrowHarrisburg, OR

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 66°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 7mphN 5°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:31 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
Tomorrow, sunny intervals will be long-lasting, with few disruptions.
The forecasted temperature range extends from a high of a comfortable 66.2°F to a low of a brisk 44.6°F.
Anticipated temperatures are trending slightly warmer than October's climate norm of 62.2°F.
Sunrise will be at 7:31 am and sunset at 6:23 pm; tomorrow's daylight will last for 10h and 52min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 6 am 8%.

Hourly weather forecast

  • 12 am
  • 50°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphN 357°
  • Humidity: 82%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphN 357°
  • Humidity: 85%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 6mphN 3°
  • Humidity: 91%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 4mphN 3°
  • Humidity: 94%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:31 am
  • 8 am
  • 39°F
  • Feels like:
    37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 4mphNNE 13°
  • Humidity: 97%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphNNE 14°
  • Humidity: 82%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphN 8°
  • Humidity: 64%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphN 355°
  • Humidity: 49%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphN 357°
  • Humidity: 42%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    63°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphN 359°
  • Humidity: 47%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:23 pm
  • 8 pm
  • 54°F
  • Feels like:
    54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphWNW 283°
  • Humidity: 67%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphSSW 202°
  • Humidity: 77%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloudy and bright weather is predicted.
The temperature will be between the lowest temperature of 39.2°F and the highest temperature of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The maximum temperature tomorrow will be a couple of degrees higher than October's average high. Tomorrow, the minimum temperature will be also similar to the average low for October.
Updated: Oct 18, 2026 @ 03:36:17 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Harrisburg, a bright and mostly cloud-free sky is in store.

Tomorrow, the highest temperature in Harrisburg will be 66.2°F, while the lowest temperature will be 44.6°F.
The highest temperature will be a few degrees higher than the average maximum of 62.2°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Harrisburg, sunrise will be at 7:31 am and sunset at 6:23 pm (PDT).

In Harrisburg, tomorrow, there will be 10h and 52min of daylight.