Weather forecast for tomorrowProsser, WA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 41°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 5mphN 6°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:20 am PDT
- Sunset: 6:07 pm PDT
- details ▼
Tomorrow, in Prosser, mainly sunny skies with just a few high clouds are anticipated.
Temperature is forecasted to swing from a high of a breezy 66.2°F to a low of an icy 41°F.
Today’s expected high is set to be moderately higher than October's regular high of 61.3°F.
Sunrise will be at 7:20 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 47min.
Temperature is forecasted to swing from a high of a breezy 66.2°F to a low of an icy 41°F.
Today’s expected high is set to be moderately higher than October's regular high of 61.3°F.
Sunrise will be at 7:20 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 47min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 36°C.
Coldest hour: 6 am 36°C.
Chance of precipitation
Highest chance: 6 am 5%.
Hourly weather forecast
- 12 am
- 45°F
- Feels like:43°F
Mostly Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphWNW 283°
- Humidity: 74%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:41°F
Mostly Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphWNW 283°
- Humidity: 82%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 39°F
- Feels like:39°F
Mostly Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphNW 304°
- Humidity: 86%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 36°F
- Feels like:36°F
Mostly Clear
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 2mphNW 318°
- Humidity: 89%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:20 am
- 8 am
- 36°F
- Feels like:36°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 1mphW 267°
- Humidity: 97%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 48°F
- Feels like:48°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphWNW 301°
- Humidity: 61%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphN 10°
- Humidity: 43%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphNE 50°
- Humidity: 32%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphNE 55°
- Humidity: 31%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNE 52°
- Humidity: 35%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:07 pm
- 8 pm
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphN 7°
- Humidity: 57%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 45°F
- Feels like:45°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphNW 315°
- Humidity: 61%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of cloud-filled and bright weather is anticipated.
The temperature will be between the lowest temperature of 35.6°F and the highest temperature of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 61.3°F. Tomorrow, the temperature is expected to be also slightly cooler than October's normal minimum of 45.9°F.
The temperature will be between the lowest temperature of 35.6°F and the highest temperature of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 61.3°F. Tomorrow, the temperature is expected to be also slightly cooler than October's normal minimum of 45.9°F.
Updated: Oct 17, 2026 @ 16:00:35 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, mostly sunny skies are expected.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 41°F.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be also moderately lower than the average low temperature.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be also moderately lower than the average low temperature.
On Sunday, in Prosser, sunrise will be at 7:20 am and sunset at 6:07 pm (PDT).
Tomorrow, the daylight will last for 10h and 47min.
