Kennewick 7-day weather forecast

Written by:
August 25, 2025
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Kennewick 7-day weather forecast

Stacker created the forecast for Kennewick, Washington using data from OpenWeather. This week's high is 106 °F on Wednesday, while the low is 63 °F on Monday. There are expected to be 0 sunny days and rain on 2 days this week.

NWS Pendleton OR has issued a extreme heat watch until Friday at 08:00 PM.

Monday, September 1

- High of 96 °F, low of 63 °F (24% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:17 AM, sunset at 7:35 PM
1 / 6
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Tuesday, September 2

- High of 105 °F, low of 73 °F (18% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:18 AM, sunset at 7:33 PM
2 / 6
Maxim Grohotov // Shutterstock

Wednesday, September 3

- High of 106 °F, low of 76 °F (14% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:20 AM, sunset at 7:31 PM
3 / 6
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Thursday, September 4

- High of 106 °F, low of 77 °F (22% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Light breeze (6 mph wind)
- Sunrise at 6:21 AM, sunset at 7:29 PM
4 / 6
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Friday, September 5

- High of 101 °F, low of 77 °F (21% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:22 AM, sunset at 7:27 PM
5 / 6
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Saturday, September 6

- High of 88 °F, low of 73 °F (42% humidity)
- Overcast with a 43% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:23 AM, sunset at 7:26 PM
6 / 6
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Sunday, September 7

- High of 90 °F, low of 64 °F (39% humidity)
- Overcast with a 22% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:25 AM, sunset at 7:24 PM
- Full moon

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