Skip to main content
One weather site to rule them all
checkweather.io
CheckWeather USJohns Creek
Forecast confidence: High · models disagree by 2°F

Johns Creek weather

Loading live data…

Heavy drizzle,rain likely tomorrow

NWS, the American and the European model agree on a high near 93° in Johns Creek today. Tomorrow looks light drizzle around 92°, with a 67% chance of rain.

93°69°
92°72°
89°70°
89°71°
85°70°
77°68°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±8°Mondaysplit ±5°Tuesdaysplit ±10°Wednesdaymodels agree
NWSNational Blend (NBM)
94°
Heavy drizzle
Today 94°·Low 71°·Rain 8%
AmericanNOAA GFS
93°
Cloudy
Today 93°·Low 69°·Rain 8%
EuropeanECMWF
93°
Light drizzle
Today 93°·Low 69°·Rain 78%
CheckWeather.io on iPhoneFree. No ads, no account.

Johns Creek weather alerts and warnings

active National Weather Service watches, warnings and advisories

Checking the National Weather Service for active alerts covering Johns Creek…

Johns Creek weather in numbers

from 30 years of measured normals

Johns Creek swings 52°F across the year, from 89°F highs in July to 37°F lows in January, and January is usually the wettest month in a year that brings about 54 in of precipitation.

Warmest month
July
89°F average high
Coldest month
January
37°F average low
Wettest month
January
54 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
February, March, April and May
Residents
83,000
share this forecast

The weather map: all three models at once

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

Johns Creek hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

Loading the three models…

Johns Creek 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Heavy drizzle
93° 69°
models agree
Tomorrow
Light drizzle
92° 72°
models agree
Sun
Light drizzle
89° 70°
±8°
Mon
Light drizzle
89° 71°
±5°
Tue
Showers
85° 70°
±10°
Wed
Light drizzle
77° 68°
models agree
Thu
Mostly clear
78° 65°
±13°
Fri
Cloudy
79° 65°
±12°
Sat
Mostly clear
77° 63°
±6°
Sun
Mostly clear
76° 63°
±4°
Mon
Light drizzle
80° 63°
models agree
Tue
Drizzle
80° 65°
models agree
Wed
Drizzle
80° 61°
±5°
Thu
Clear
81° 59°
±12°

Johns Creek, Georgia (GA) is at its warmest in Jul (average highs near 89°F) and coldest in Jan (lows around 37°F), with roughly 54 in of precipitation across the year. Below, compare what NWS, American, European forecast for Johns 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.

Johns Creek climate by month

average daytime high and overnight low across a typical year
Jan
53°
37°
Feb
61°
42°
Mar
65°
45°
Apr
71°
51°
May
78°
60°
Jun
86°
66°
Jul
89°
71°
Aug
89°
70°
Sep
82°
64°
Oct
74°
54°
Nov
64°
47°
Dec
55°
38°

Which forecast is most accurate in Johns Creek?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
89
/100rank #1
95±0.5°F96±1.2 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
67
/100rank #2
89±1.1°F92±2.4 mph2458% 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.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
Loading ratings…
AmericanNOAA GFS
Loading ratings…
EuropeanECMWF
Loading ratings…

One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°93° to 94°±70%8% to 78% chance
Tomorrow±2°92° to 93°±47%20% to 67% chance
Sun±8°86° to 93°±35%26% to 61% chance
Mon±5°87° to 92°±33%38% to 71% chance
Tue±10°81° to 90°±3%64% to 67% 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 Johns Creek

today, local time
Sunrise
07:22
Sunset
19:38
Daylight
12h 16m

Common questions

What's the weather in Johns Creek today?
On this page we show what NWS, American, European each forecast for Johns 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 Johns Creek today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Johns 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 Johns Creek?
Over the last 30 days, the European model has been the most accurate for Johns Creek (CheckWeather Score 89/100), ahead of the American at 67. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Johns Creek?
July is typically the warmest month in Johns Creek, with average highs around 89°F.
How cold does Johns Creek get?
The coldest month in Johns Creek is January, when overnight lows average about 37°F.
How much rain does Johns Creek get?
Johns Creek sees roughly 54 in of precipitation a year, with January usually the wettest month.

Nearby

More US weather