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CheckWeather USNashua
Forecast confidence: High · models disagree by 4°F

Nashua weather

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Heavy drizzle,rain likely tomorrow

NWS, the American and the European model agree on a high near 72° in Nashua today. Tomorrow looks heavy drizzle around 69°, with a 98% chance of rain.

72°60°
69°56°
78°53°
80°59°
74°58°
80°64°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaymodels agree
NWSNational Blend (NBM)
70°
Heavy drizzle
Today 70°·Low 60°·Rain 30%
AmericanNOAA GFS
73°
Cloudy
Today 73°·Low 60°·Rain 30%
EuropeanECMWF
74°
Heavy drizzle
Today 74°·Low 61°·Rain 100%

The weather map: all three models at once

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

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Heavy drizzle
72° 60°
models agree
Tomorrow
Heavy drizzle
69° 56°
models agree
Mon
Clear
78° 53°
models agree
Tue
Partly cloudy
80° 59°
models agree
Wed
Light drizzle
74° 58°
models agree
Thu
Light drizzle
80° 64°
models agree
Fri
Mostly clear
76° 59°
±12°
Sat
Mostly clear
78° 55°
±10°
Sun
Partly cloudy
81° 58°
±13°
Mon
Light drizzle
82° 62°
±12°
Tue
Drizzle
75° 59°
±6°
Wed
Heavy drizzle
72° 57°
models agree
Thu
Cloudy
74° 54°
models agree
Fri
Cloudy
72° 56°
models agree

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.

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.

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 Nashua?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
91
/100rank #1
94±0.6°F98±0.6 mph8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
78
/100rank #2
86±1.4°F95±1.4 mph5877% 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.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±4°70° to 74°±70%30% to 100% chance
Tomorrow±1°69° to 70°±46%52% to 98% chance
Mon±2°77° to 78°±1%0% to 1% chance
Tue±3°78° to 81°±12%0% to 12% chance
Wed±2°73° to 75°±6%35% to 41% 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 Nashua

today, local time
Sunrise
06:15
Sunset
19:13
Daylight
12h 58m

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?
Over the last 30 days, the European model has been the most accurate for Nashua (CheckWeather Score 91/100), ahead of the American at 78. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Nashua?
July is typically the warmest month in Nashua, with average highs around 84°F.
How cold does Nashua get?
The coldest month in Nashua is February, when overnight lows average about 23°F.
How much rain does Nashua get?
Nashua sees roughly 51 in of precipitation a year, with March usually the wettest month.

Nearby

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