Weather forecast for tomorrowRiley, OR

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 72°F
  • 28°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphSE 133°
  • Humidity: 47%
  • UV index: 4
  • Sunrise: 7:16 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
Tomorrow, sunshine is also forecasted under mostly clear skies.
Daytime will experience a high of a delightful 71.6°F, significantly differing from the anticipated night low of a harsh 28.4°F.
The higher temperature of 71.6°F is more typical of September than October.
Sunrise will be at 7:16 am and sunset at 6:09 pm; tomorrow's daylight will last for 10h and 54min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 28°C.

Chance of precipitation

Highest chance: 6 am 7%.

Hourly weather forecast

  • 12 am
  • 39°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphNW 314°
  • Humidity: 66%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 36°F
  • Feels like:
    30°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 6mphNW 319°
  • Humidity: 79%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 32°F
  • Feels like:
    28°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphNW 318°
  • Humidity: 87%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 28°F
  • Feels like:
    28°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 2mphNNW 331°
  • Humidity: 94%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:16 am
  • 8 am
  • 30°F
  • Feels like:
    30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 1mphNNW 330°
  • Humidity: 93%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 46°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphE 96°
  • Humidity: 61%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 150°
  • Humidity: 39%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphS 180°
  • Humidity: 27%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 70°F
  • Feels like:
    70°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 162°
  • Humidity: 20%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphESE 105°
  • Humidity: 23%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:09 pm
  • 8 pm
  • 48°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphENE 73°
  • Humidity: 43%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 80°
  • Humidity: 48%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of bright and gloomy weather is forecasted.
The temperature difference between day and night will be substantial, as the lowest temperature will be 26.6°F while the highest temperature will be 69.8°F. The warmest part of the day will be at 4 pm and 5 pm.
The highest temperature tomorrow will resemble September's average maximum of 72.3°F more than October's average. The lowest temperature tomorrow is more similar to November's average minimum of 29.3°F than the average low in October of 39.4°F.
Updated: Oct 17, 2026 @ 18:32:38 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Riley, sunshine is forecasted under mostly clear skies.

Tomorrow, the highest temperature will be 71.6°F, while the lowest temperature will be 28.4°F.
Tomorrow, the highest temperature will be significantly higher than the average maximum of 56.7°F in October. The lowest temperature will be also significantly lower than the average low of 39.4°F.

On Sunday, in Riley, sunrise will be at 7:16 am and sunset at 6:09 pm (PDT).

In Riley, tomorrow, there will be 10h and 54min of daylight.