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Every US forecast, compared
CheckWeather US›Nashua

Nashua weather

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NWSNational Blend (NBM)
68°
Clear
Feels 70° · Wind 0 mph · Humidity 63%
AmericanNOAA GFS
67°
Clear
Feels 65° · Wind 5 mph · Humidity 55%
EuropeanECMWF
69°
Clear
Feels 69° · Wind 2 mph · Humidity 59%

Latest for Nashua: NWS (National Blend (NBM)): 68° Clear · American (NOAA GFS): 67° Clear · European (ECMWF): 69° Clear.

The weather map: all three models at once

NWS, American, European side by side around Nashua and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

7-day forecast

where the models agree, and where they split

Nashua, NH is at its warmest in Jul (average highs near 84°F) and coldest in Feb (lows around 23°F), with roughly 51 in of precipitation across the year. Below, compare what NWS, American, European forecast for Nashua right now, and see exactly where they disagree.

Nashua climate by month

average daytime high and overnight low across a typical year
Jan
38°
24°
Feb
42°
23°
Mar
47°
29°
Apr
59°
38°
May
70°
48°
Jun
78°
58°
Jul
84°
66°
Aug
79°
61°
Sep
74°
56°
Oct
64°
46°
Nov
50°
34°
Dec
42°
28°

Which forecast is most accurate in the US?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
Behind Apple Weather, Windy
88
/100rank #1
85±1.5°F96±1.2 mph8592% hitECMWF — European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
Behind Windy & many free apps
74
/100rank #2
82±1.8°F92±2.6 mph5374% 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 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.

Common questions

What's the weather in Nashua today?
On this page we show what NWS, American, European each forecast for Nashua 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 Nashua today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Nashua 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 Nashua?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Nashua 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 Nashua?
Jul is typically the warmest month in Nashua, with average highs around 84°F.
How cold does Nashua get?
The coldest month in Nashua is Feb, when overnight lows average about 23°F.
How much rain does Nashua get?
Nashua sees roughly 51 in of precipitation a year, with Mar usually the wettest month.

The forecasts Americans check

The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.

NWSNational Weather Service
Open model · shown above ✓AWAccuWeather
Closed model · open ↗↗TWCThe Weather Channel
Closed model · open ↗↗

Nearby

HudsonLitchfieldHollisTyngsboroMerrimackPelhamLondonderryWindham

More US weather

Most accurate forecastUS rain radarAll US citiesHoliday weather abroadThe European model vs the American model: ECMWF vs GFSThe national forecast models, explained: NBM, UKMO, GEM and ACCESS