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Newnan weather

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Newnan weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Newnan weather in numbers

from 30 years of measured normals

Newnan swings 53°F across the year, from 91°F highs in August to 38°F lows in January, and March is usually the wettest month in a year that brings about 54 in of precipitation.

Warmest month
August
91°F average high
Coldest month
January
38°F average low
Wettest month
March
54 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
February, April, October and November
Residents
37,000
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The weather map: all three models at once

NWS, American, European side by side around Newnan and nearby towns.Live rain radar →
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Newnan 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

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Newnan 10-day forecast, out to 14 days

where the models agree, and where they split

Newnan, Georgia (GA) is at its warmest in Aug (average highs near 91°F) and coldest in Jan (lows around 38°F), with roughly 54 in of precipitation across the year. Below, compare what NWS, American, European forecast for Newnan 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.

Newnan climate by month

average daytime high and overnight low across a typical year
Jan
55°
38°
Feb
62°
44°
Mar
66°
47°
Apr
73°
52°
May
79°
61°
Jun
88°
67°
Jul
90°
71°
Aug
91°
70°
Sep
83°
65°
Oct
75°
55°
Nov
65°
48°
Dec
57°
39°

Which forecast is most accurate in Newnan?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
82
/100rank #1
88±1.2°F95±1.5 mph6581% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
58
/100rank #2
82±1.8°F94±1.7 mph548% 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)
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AmericanNOAA GFS
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EuropeanECMWF
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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.

Common questions

What's the weather in Newnan today?
On this page we show what NWS, American, European each forecast for Newnan 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 Newnan today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Newnan 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 Newnan?
Over the last 30 days, the European model has been the most accurate for Newnan (CheckWeather Score 82/100), ahead of the American at 58. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Newnan?
August is typically the warmest month in Newnan, with average highs around 91°F.
How cold does Newnan get?
The coldest month in Newnan is January, when overnight lows average about 38°F.
How much rain does Newnan get?
Newnan sees roughly 54 in of precipitation a year, with March usually the wettest month.

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