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CheckWeather USPortsmouth Heights
Forecast confidence: High · models disagree by 3°F

Portsmouth Heights weather

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Mostly clear,rain likely tomorrow

NWS, the American and the European model agree on a high near 89° in Portsmouth Heights today. Tomorrow looks light drizzle around 82°, with a 20% chance of rain.

89°71°
82°71°
86°69°
84°72°
79°71°
74°70°
Todaymodels agreeTomorrowmodels agreeSundaysplit ±7°Mondaysplit ±6°Tuesdaysplit ±6°Wednesdaymodels agree
NWSNational Blend (NBM)
88°
Mostly clear
Today 88°·Low 71°·Rain 7%
AmericanNOAA GFS
91°
Partly cloudy
Today 91°·Low 71°·Rain 7%
EuropeanECMWF
88°
Heavy drizzle
Today 88°·Low 71°·Rain 69%
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Portsmouth Heights weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Portsmouth Heights weather in numbers

from 30 years of measured normals

Portsmouth Heights swings 50°F across the year, from 88°F highs in July to 38°F lows in January, and July is usually the wettest month in a year that brings about 50 in of precipitation.

Warmest month
July
88°F average high
Coldest month
January
38°F average low
Wettest month
July
50 in a year
Below freezing
Never
overnight lows stay above 32°F
Comfortable
4 months
March, April, May and October
Residents
99,000
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The weather map: all three models at once

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

where the models agree, and where they split
Today
Mostly clear
89° 71°
models agree
Tomorrow
Light drizzle
82° 71°
models agree
Sun
Mostly clear
86° 69°
±7°
Mon
Heavy drizzle
84° 72°
±6°
Tue
Light rain
79° 71°
±6°
Wed
Light rain
74° 70°
models agree
Thu
Light drizzle
72° 66°
models agree
Fri
Light drizzle
73° 63°
±7°
Sat
Light drizzle
73° 63°
±6°
Sun
Drizzle
75° 62°
models agree
Mon
Light drizzle
76° 63°
models agree
Tue
Cloudy
79° 64°
±5°
Wed
Drizzle
83° 67°
models agree
Thu
Light drizzle
72° 64°
models agree

Portsmouth Heights, Virginia (VA) is at its warmest in Jul (average highs near 88°F) and coldest in Jan (lows around 38°F), with roughly 50 in of precipitation across the year. Below, compare what NWS, American, European forecast for Portsmouth Heights 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.

Portsmouth Heights climate by month

average daytime high and overnight low across a typical year
Jan
55°
38°
Feb
57°
40°
Mar
61°
43°
Apr
71°
52°
May
75°
59°
Jun
83°
66°
Jul
88°
72°
Aug
85°
70°
Sep
79°
66°
Oct
71°
55°
Nov
62°
47°
Dec
54°
39°

Which forecast is most accurate in Portsmouth Heights?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
83
/100rank #1
89±1.1°F97±0.9 mph6581% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
68
/100rank #2
85±1.5°F95±1.5 mph2961% 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±3°88° to 91°±62%7% to 69% chance
Tomorrow±4°80° to 83°±12%8% to 20% chance
Sun±7°83° to 90°±2%4% to 6% chance
Mon±6°81° to 87°±14%57% to 71% chance
Tue±6°77° to 83°±18%41% to 59% 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 Portsmouth Heights

today, local time
Sunrise
06:50
Sunset
19:08
Daylight
12h 18m

Common questions

What's the weather in Portsmouth Heights today?
On this page we show what NWS, American, European each forecast for Portsmouth Heights 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 Portsmouth Heights today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Portsmouth Heights 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 Portsmouth Heights?
Over the last 30 days, the European model has been the most accurate for Portsmouth Heights (CheckWeather Score 83/100), ahead of the American at 68. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Portsmouth Heights?
July is typically the warmest month in Portsmouth Heights, with average highs around 88°F.
How cold does Portsmouth Heights get?
The coldest month in Portsmouth Heights is January, when overnight lows average about 38°F.
How much rain does Portsmouth Heights get?
Portsmouth Heights sees roughly 50 in of precipitation a year, with July usually the wettest month.

Nearby

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