What Is the Nice Score?

How TruWeather rates outdoor comfort from 0 to 100

Every weather app shows you numbers — temperature, humidity, wind speed, precipitation probability. But none of them answer the only question that matters: is it actually nice outside?

That's what the Nice Score does. It takes raw weather data from three professional-grade models and distills it into a single number from 0 to 100.

How the score works

The Nice Score starts at 100 (perfect day) and subtracts penalties for conditions that make being outside less comfortable. The bigger the penalty, the worse the condition.

Score	Verdict	What it means
90-100	PERFECT	Drop everything. Go outside.
75-89	GREAT	Really nice. You'll enjoy it.
60-74	DECENT	Fine for most activities.
40-59	MEH	Not ideal. Dress accordingly.
0-39	SKIP IT	Stay inside or prepare well.

What goes into the calculation

Six weather factors, each weighted by how much they affect how it actually feels to be outside:

Temperature — The sweet spot is 65-78°F. Penalties increase the further you get from this range.
Feels-like temperature — Accounts for wind chill and heat index. Sometimes 70°F doesn't feel like 70°F.
Humidity — High humidity makes warm days oppressive and cool days clammy. The dew point matters more than relative humidity.
Wind speed — A light breeze is pleasant. 20+ mph makes everything worse.
Rain probability — Even a 30% chance of rain can ruin outdoor plans.
Cloud cover — Overcast skies don't ruin a day, but clear skies make it better.

Where the data comes from

TruWeather pulls data from three professional weather models used by meteorologists worldwide:

NOAA GFS — The U.S. Global Forecast System, updated every 6 hours.
ECMWF — The European model, widely considered the most accurate global forecast.
Open-Meteo — Aggregates multiple models for the best local forecast.

By combining multiple sources, TruWeather avoids the single-model bias that makes other weather apps unreliable.

Personalize your score

Not everyone agrees on what "nice" means. TruWeather lets you customize your comfort thresholds — if you love heat, the score won't penalize warm days as harshly. If you hate wind, it will.

Check your Nice Score →