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CheckWeather USKennewick
Forecast confidence: High · models disagree by 4°F

Kennewick weather

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Partly cloudy,rain likely tomorrow

NWS, the American and the European model agree on a high near 74° in Kennewick today. Tomorrow looks cloudy around 72°, with a 63% chance of rain.

74°55°
72°56°
77°57°
81°55°
89°59°
90°63°
Todaymodels agreeTomorrowmodels agreeMondaysplit ±5°Tuesdaysplit ±6°Wednesdaysplit ±8°Thursdaysplit ±10°
NWSNational Blend (NBM)
72°
Partly cloudy
Today 72°·Low 55°·Rain 8%
AmericanNOAA GFS
76°
Cloudy
Today 76°·Low 55°·Rain 8%
EuropeanECMWF
74°
Light drizzle
Today 74°·Low 55°·Rain 60%

The weather map: all three models at once

NWS, American, European side by side around Kennewick and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Partly cloudy
74° 55°
models agree
Tomorrow
Cloudy
72° 56°
models agree
Mon
Cloudy
77° 57°
±5°
Tue
Cloudy
81° 55°
±6°
Wed
Clear
89° 59°
±8°
Thu
Cloudy
90° 63°
±10°
Fri
Mostly clear
79° 58°
models agree
Sat
Mostly clear
79° 58°
models agree
Sun
Clear
81° 57°
±6°
Mon
Mostly clear
83° 57°
±9°
Tue
Cloudy
85° 60°
±12°
Wed
Cloudy
89° 61°
models agree
Thu
Cloudy
82° 59°
±13°
Fri
Cloudy
81° 58°
±13°

Kennewick, WA is at its warmest in Jul (average highs near 97°F) and coldest in Jan (lows around 28°F), with roughly 12 in of precipitation across the year. Below, compare what NWS, American, European forecast for Kennewick right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

Kennewick climate by month

average daytime high and overnight low across a typical year
Jan
39°
28°
Feb
48°
32°
Mar
55°
36°
Apr
65°
43°
May
78°
53°
Jun
86°
60°
Jul
97°
68°
Aug
92°
65°
Sep
82°
57°
Oct
66°
45°
Nov
49°
37°
Dec
43°
34°

Which forecast is most accurate in Kennewick?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
93
/100rank #1
88±1.2°F97±0.9 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
92
/100rank #2
82±1.8°F95±1.6 mph100100% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±4°72° to 76°±52%8% to 60% chance
Tomorrow±3°70° to 73°±47%16% to 63% chance
Mon±5°74° to 79°±6%9% to 15% chance
Tue±6°78° to 84°models agree0% to 0% chance
Wed±8°84° to 92°models agree0% to 0% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Kennewick

today, local time
Sunrise
06:22
Sunset
19:27
Daylight
13h 5m

Common questions

What's the weather in Kennewick today?
On this page we show what NWS, American, European each forecast for Kennewick today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Kennewick today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Kennewick and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Kennewick?
Over the last 30 days, the European model has been the most accurate for Kennewick (CheckWeather Score 93/100), ahead of the American at 92. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Kennewick?
July is typically the warmest month in Kennewick, with average highs around 97°F.
How cold does Kennewick get?
The coldest month in Kennewick is January, when overnight lows average about 28°F.
How much rain does Kennewick get?
Kennewick sees roughly 12 in of precipitation a year, with December usually the wettest month.

Nearby

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