Weather forecast for tomorrowThree Rivers, OR
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 36°F
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
- details ▼
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.
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.
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
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphNNE 34°
- Humidity: 83%
- Pressure: 30.15"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:39°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 4mphNNE 33°
- Humidity: 85%
- Pressure: 30.15"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 4 am
- 37°F
- Feels like:37°F
Mostly Cloudy
- Precip. probability: 21%
- Precipitation: 0"
- Wind: 2mphNNE 13°
- Humidity: 89%
- Pressure: 30.15"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:37°F
Mostly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 2mphNNE 31°
- Humidity: 88%
- Pressure: 30.15"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
Sunrise: 7:24 am
- 8 am
- 37°F
- Feels like:37°F
Mostly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 1mphS 173°
- Humidity: 91%
- Pressure: 30.15"Hg
- Visibility: 6mi
- UV index: 0
- details ▼
- 10 am
- 46°F
- Feels like:46°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSW 215°
- Humidity: 73%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 54°F
- Feels like:54°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphSW 219°
- Humidity: 58%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 61°F
- Feels like:61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphSW 233°
- Humidity: 41%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphW 279°
- Humidity: 34%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 61°F
- Feels like:61°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphNNE 12°
- Humidity: 38%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:17 pm
- 8 pm
- 52°F
- Feels like:52°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphNNE 28°
- Humidity: 56%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 48°F
- Feels like:46°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 3mphNNE 29°
- Humidity: 66%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
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.
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
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.
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.





