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CheckWeather USWalnut Creek
Forecast confidence: High · models disagree by 2°F

Walnut Creek weather

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Mostly clear,much the same tomorrow

NWS, the American and the European model agree on a high near 80° in Walnut Creek today. Tomorrow looks clear around 77°, with a 0% chance of rain.

80°53°
77°55°
89°54°
94°61°
99°69°
97°71°
Todaymodels agreeTomorrowmodels agreeMondaysplit ±6°Tuesdaymodels agreeWednesdaymodels agreeThursdaysplit ±6°
NWSNational Blend (NBM)
81°
Mostly clear
Today 81°·Low 55°·Rain 0%
AmericanNOAA GFS
79°
Partly cloudy
Today 79°·Low 52°·Rain 0%
EuropeanECMWF
79°
Cloudy
Today 79°·Low 53°·Rain 0%

The weather map: all three models at once

NWS, American, European side by side around Walnut Creek 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
Mostly clear
80° 53°
models agree
Tomorrow
Clear
77° 55°
models agree
Mon
Clear
89° 54°
±6°
Tue
Cloudy
94° 61°
models agree
Wed
Cloudy
99° 69°
models agree
Thu
Mostly clear
97° 71°
±6°
Fri
Mostly clear
82° 62°
±5°
Sat
Mostly clear
78° 59°
±5°
Sun
Mostly clear
78° 58°
±13°
Mon
Partly cloudy
80° 58°
±13°
Tue
Mostly clear
82° 57°
±11°
Wed
Cloudy
90° 56°
±15°
Thu
Cloudy
87° 58°
±6°
Fri
Clear
84° 56°
models agree

Walnut Creek, CA is at its warmest in Jul (average highs near 89°F) and coldest in Feb (lows around 42°F), with roughly 27 in of precipitation across the year. Below, compare what NWS, American, European forecast for Walnut Creek 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.

Walnut Creek climate by month

average daytime high and overnight low across a typical year
Jan
57°
44°
Feb
58°
42°
Mar
59°
44°
Apr
68°
46°
May
73°
51°
Jun
80°
55°
Jul
89°
60°
Aug
86°
60°
Sep
82°
58°
Oct
80°
57°
Nov
64°
48°
Dec
59°
46°

Which forecast is most accurate in Walnut Creek?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
95
/100rank #1
90±1.0°F97±0.8 mph100100% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
88
/100rank #2
72±2.8°F96±1.1 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±2°79° to 81°models agree0% to 0% chance
Tomorrow±2°76° to 78°models agree0% to 0% chance
Mon±6°87° to 92°models agree0% to 0% chance
Tue±4°91° to 95°±2%0% to 2% chance
Wed±3°98° to 101°models agree4% to 4% 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 Walnut Creek

today, local time
Sunrise
06:42
Sunset
19:31
Daylight
12h 49m

Common questions

What's the weather in Walnut Creek today?
On this page we show what NWS, American, European each forecast for Walnut Creek 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 Walnut Creek today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Walnut Creek 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 Walnut Creek?
Over the last 30 days, the European model has been the most accurate for Walnut Creek (CheckWeather Score 95/100), ahead of the American at 88. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Walnut Creek?
July is typically the warmest month in Walnut Creek, with average highs around 89°F.
How cold does Walnut Creek get?
The coldest month in Walnut Creek is February, when overnight lows average about 42°F.
How much rain does Walnut Creek get?
Walnut Creek sees roughly 27 in of precipitation a year, with January usually the wettest month.

Nearby

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