Kennewick 7-day weather forecast

Written by:
August 11, 2025
ESOlex // Shutterstock

Kennewick 7-day weather forecast

Stacker created the forecast for Kennewick, Washington using data from OpenWeather. This week's high is 108 °F on Tuesday, while the low is 62 °F on Thursday. There are expected to be 3 sunny days and rain on 1 day this week.

NWS Pendleton OR has issued a extreme heat warning until Wednesday at 10:00 PM.

Monday, August 11

- High of 104 °F, low of 67 °F (17% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:51 AM, sunset at 8:12 PM
1 / 6
Matusciac Alexandru // Shutterstock

Tuesday, August 12

- High of 108 °F, low of 74 °F (12% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:52 AM, sunset at 8:10 PM
2 / 6
AnnaElizabeth photography // Shutterstock

Wednesday, August 13

- High of 100 °F, low of 70 °F (14% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Fresh breeze (23 mph wind)
- Sunrise at 5:53 AM, sunset at 8:09 PM
3 / 6
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Thursday, August 14

- High of 89 °F, low of 62 °F (20% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 5:54 AM, sunset at 8:07 PM
4 / 6
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Friday, August 15

- High of 87 °F, low of 69 °F (36% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 5:56 AM, sunset at 8:05 PM
- Last quarter moon
5 / 6
Stepan Bessmelnitsin // Shutterstock

Saturday, August 16

- High of 88 °F, low of 69 °F (35% humidity)
- Partly cloudy with a 100% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 5:57 AM, sunset at 8:04 PM
6 / 6
Leena Robinson // Shutterstock

Sunday, August 17

- High of 90 °F, low of 62 °F (18% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:58 AM, sunset at 8:02 PM

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