Weather forecast for 10 daysRichland, WA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 75°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSW 233°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:17 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
Today, on Saturday, October 17, a partly cloudy outlook will keep the sky interesting throughout the day.
Temperature readings are expected to span from a high of a warm 75.2°F to a low of an icy 37.4°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 78.6°F.
Sunrise was at 7:17 am and sunset will be at 6:07 pm; the daylight will last for 10h and 50min.

Sunday Oct 18, 2026

  • 68°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphNNW 348°
  • Humidity: 47%
  • UV index: 3
  • Sunrise: 7:18 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
Tomorrow, on Sunday, October 18, expect brilliant sunshine under mostly clear skies.
A substantial temperature range, peaking at an agreeable 68°F and bottoming out at a wintry 41°F, is expected.
The high temperature will be a couple of degrees higher than the typical October level of 62.4°F.
Sunrise will be at 7:18 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 47min.

10-day overview

Daily temperatures

Warmest day: today 75°C.
Coldest day: Monday 26.10. 57°C.

Chance of precipitation

Highest chance: Sunday 25.10. 17%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 75°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSW 233°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:17 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 68°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 6mphNNW 348°
  • Humidity: 47%
  • UV index: 3
  • Sunrise: 7:18 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 41°F
Cloudy
Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphNNE 33°
  • Humidity: 45%
  • UV index: 1
  • Sunrise: 7:20 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNNW 344°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:21 am PDT
  • Sunset: 6:01 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 3mphNE 46°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 7:23 am PDT
  • Sunset: 6:00 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 4mphSSE 162°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:24 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 64°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphWSW 246°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:25 am PDT
  • Sunset: 5:56 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 59°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 5mphNNE 26°
  • Humidity: 63%
  • UV index: 2
  • Sunrise: 7:27 am PDT
  • Sunset: 5:55 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 59°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 7mphNNW 341°
  • Humidity: 63%
  • UV index: 2
  • Sunrise: 7:28 am PDT
  • Sunset: 5:53 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 6mphSW 223°
  • Humidity: 65%
  • UV index: 2
  • Sunrise: 7:30 am PDT
  • Sunset: 5:51 pm PDT
  • ▼
Looking ahead to the next ten days, primarily overcast and occasionally sun-filled weather is anticipated.
Rainfall is not forecasted in Richland in the upcoming period.
There will be a considerable variation in temperature in the upcoming period. Forecast highs will fluctuate between 57.2°F and 75.2°F, while nighttime temperatures are expected to vary from 35.6°F to 44.6°F.
Today is the warmest day, with a maximum temperature of 75.2°F; with the highest temperature of 57.2°F, next Monday will be the coldest day.
Updated: Oct 17, 2026 @ 15:18:13 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, clouds and sunshine will create a dynamic sky throughout the day.

Today, the maximum temperature will be 75.2°F, while the minimum temperature will be 37.4°F.
The maximum temperature will be noticeably higher than the average highest temperature of 62.4°F in October. Today, the lowest temperature will be also significantly lower than the average low of 46.6°F.

On Saturday, in Richland, sunrise was at 7:17 am and sunset will be at 6:07 pm (PDT).

Today, the daylight will last for 10h and 50min.

Tomorrow, sunshine will take center stage, with just faint traces of clouds.

Tomorrow, the highest temperature in Richland will be 68°F, while the lowest temperature will be 41°F.
Tomorrow, the highest temperature will be relatively higher than the average maximum temperature in October. The lowest temperature will be also a few degrees lower than the average low of 46.6°F.

On Sunday, in Richland, sunrise will be at 7:18 am and sunset at 6:05 pm (PDT).

In Richland, the length of the day tomorrow will be 10h and 47min.