Weather forecast for tomorrowUmatilla, OR
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 68°F
- 41°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 7mphNE 41°
- Humidity: 50%
- UV index: 3
- Sunrise: 7:18 am PDT
- Sunset: 6:06 pm PDT
- details ▼
Tomorrow, on Sunday, sunshine and minimal clouds are also in the outlook.
Temperatures are set to span a considerable range, with a high of an agreeable 68°F and a low of a cold 41°F.
Forecasts suggest the maximum temperature will be a couple of degrees higher than October's average of 61.9°F.
Sunrise will be at 7:18 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 47min.
Temperatures are set to span a considerable range, with a high of an agreeable 68°F and a low of a cold 41°F.
Forecasts suggest the maximum temperature will be a couple of degrees higher than October's average of 61.9°F.
Sunrise will be at 7:18 am and sunset at 6:06 pm; tomorrow's daylight will last for 10h and 47min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 66°C.
Coldest hour: 6 am 37°C.
Coldest hour: 6 am 37°C.
Chance of precipitation
Highest chance: 6 am 5%.
Hourly weather forecast
- 12 am
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphSSE 160°
- Humidity: 76%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 45°F
- Feels like:45°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 2mphSSE 150°
- Humidity: 85%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 41°F
- Feels like:41°F
Mostly Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphS 176°
- Humidity: 90%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphSE 126°
- Humidity: 95%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:18 am
- 8 am
- 39°F
- Feels like:39°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphESE 112°
- Humidity: 92%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 50°F
- Feels like:50°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphWSW 259°
- Humidity: 63%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 59°F
- Feels like:59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphN 10°
- Humidity: 43%
- Pressure: 30.09"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNNE 30°
- Humidity: 30%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNE 39°
- Humidity: 27%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 63°F
- Feels like:63°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphNNE 29°
- Humidity: 32%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:06 pm
- 8 pm
- 52°F
- Feels like:52°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNNE 20°
- Humidity: 49%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 46°F
- Feels like:46°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphESE 124°
- Humidity: 58%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of overcast and sunny weather is anticipated.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 66.2°F. The warmest part of the day will be from 3 pm to 5 pm.
The forecasted high will be relatively higher than the typical October maximum of 61.9°F. Tomorrow, the overnight low is more alike with November's usual minimum of 36.7°F than October's 46.8°F.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 66.2°F. The warmest part of the day will be from 3 pm to 5 pm.
The forecasted high will be relatively higher than the typical October maximum of 61.9°F. Tomorrow, the overnight low is more alike with November's usual minimum of 36.7°F than October's 46.8°F.
Updated: Oct 17, 2026 @ 15:43:42 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
On Sunday, the weather remains calm, bright, and sunny.
Tomorrow, the highest temperature will be 68°F, while the lowest temperature will be 41°F.
The highest temperature tomorrow will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 46.8°F.
The highest temperature tomorrow will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 46.8°F.
On Sunday, in Umatilla, sunrise will be at 7:18 am and sunset at 6:06 pm (PDT).
In Umatilla, the length of the day tomorrow will be 10h and 47min.
