Weather forecast for tomorrowThree Rivers, OR

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 66°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 5mphSW 224°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:24 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
Tomorrow, in Three Rivers, high-altitude clouds may scatter across the sky, but the sun will still shine.
A stark contrast will be observed between the day's peak temperature of a comfortable 66.2°F and the night's low of an icy 35.6°F.
Tomorrow, temperatures will feel warmer with a high of 66.2°F, more typical for September than for October.
Sunrise will be at 7:24 am and sunset at 6:17 pm; tomorrow's daylight will last for 10h and 53min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 6 am 20%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 4mphNNE 34°
  • Humidity: 83%
  • Pressure: 30.15"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 4mphNNE 33°
  • Humidity: 85%
  • Pressure: 30.15"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 4 am
  • 37°F
  • Feels like:
    37°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 2mphNNE 13°
  • Humidity: 89%
  • Pressure: 30.15"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    37°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 2mphNNE 31°
  • Humidity: 88%
  • Pressure: 30.15"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:24 am
  • 8 am
  • 37°F
  • Feels like:
    37°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 1mphS 173°
  • Humidity: 91%
  • Pressure: 30.15"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 10 am
  • 46°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 2mphSW 215°
  • Humidity: 73%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 54°F
  • Feels like:
    54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSW 219°
  • Humidity: 58%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphSW 233°
  • Humidity: 41%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphW 279°
  • Humidity: 34%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphNNE 12°
  • Humidity: 38%
  • Pressure: 29.85"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:17 pm
  • 8 pm
  • 52°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphNNE 28°
  • Humidity: 56%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphNNE 29°
  • Humidity: 66%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of dull and clear weather is expected.
The temperature will be between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
Tomorrow, the expected high matches September's average of 69.8°F more than October's. Tomorrow, the minimum temperature will be resembling the average low for October.
Updated: Oct 17, 2026 @ 15:53:34 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Three Rivers, mostly clear with scattered clouds is expected.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 35.6°F.
Tomorrow, the maximum temperature will be noticeably higher than the average highest temperature of 54.7°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Three Rivers, sunrise will be at 7:24 am and sunset at 6:17 pm (PDT).

In Three Rivers, tomorrow, there will be 10h and 53min of daylight.