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Sunbury weather

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NWSNational Blend (NBM)
39°
Clear
Feels 36° · Wind 0 mph · Humidity 93%
AmericanNOAA GFS
37°
Clear
Feels 33° · Wind 1 mph · Humidity 83%
EuropeanECMWF
43°
Clear
Feels 39° · Wind 1 mph · Humidity 75%

Latest for Sunbury: NWS (National Blend (NBM)): 39° Clear · American (NOAA GFS): 37° Clear · European (ECMWF): 43° Clear.

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Sunbury weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Sunbury weather in numbers

from 30 years of measured normals

Sunbury swings 64°F across the year, from 84°F highs in July to 20°F lows in February, and June is usually the wettest month in a year that brings about 43 in of precipitation.

Warmest month
July
84°F average high
Coldest month
February
20°F average low
Wettest month
June
43 in a year
Below freezing
4 months
January, February, March and December
Comfortable
4 months
April, May, September and October
Residents
9,652
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The weather map: all three models at once

NWS, American, European side by side around Sunbury and nearby towns.Live rain radar →
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Sunbury 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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Sunbury 10-day forecast, out to 14 days

where the models agree, and where they split

Sunbury, Pennsylvania (PA) is at its warmest in Jul (average highs near 84°F) and coldest in Feb (lows around 20°F), with roughly 43 in of precipitation across the year. Below, compare what NWS, American, European forecast for Sunbury 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.

Sunbury climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
35°
23°
Feb
39°
20°
Mar
47°
29°
Apr
60°
38°
May
71°
49°
Jun
80°
58°
Jul
84°
64°
Aug
82°
63°
Sep
74°
56°
Oct
62°
43°
Nov
51°
35°
Dec
40°
26°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Sunbury has changed since 1995

Sunbury sits in the same roughly 50 km square of NASA's reanalysis as Williamsport. That square ran 1.6°F warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Williamsport page.

Which forecast is most accurate in the US?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
93
/100rank #1
91±0.9°F97±1.1 mph9396% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
82
/100rank #2
83±1.7°F94±2.0 mph7184% 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 Sunbury today?
On this page we show what NWS, American, European each forecast for Sunbury 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 Sunbury today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Sunbury 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 Sunbury?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Sunbury forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Sunbury?
July is typically the warmest month in Sunbury, with average highs around 84°F.
How cold does Sunbury get?
The coldest month in Sunbury is February, when overnight lows average about 20°F.
How much rain does Sunbury get?
Sunbury sees roughly 43 in of precipitation a year, with June usually the wettest month.

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