BereSUNo US weather forecasts and climate guides

US weather forecasts, straight from the National Weather Service

Type a ZIP code above and get the official seven-day forecast for that spot — no account, no app. Below, sixteen climate guides explain why the weather in each major US city behaves the way it does, from Tornado Alley to the Arizona monsoon.

378 active weather alerts across 46 states right now

Right now in four big cities

City climate guides

Each guide pairs the live forecast with a written explanation of the local climate: what each season actually feels like, the hazards that define the place, and what to pack if you are visiting.

Northeast

Midwest

South

West

Weather calculators

Every calculator runs on the server using the published formula, and explains the result in plain English instead of just printing a number.

Heat index

Combine temperature and humidity to find out what the air actually feels like, and how close that is to dangerous.

Wind chill

Find out how much colder the wind makes it feel, and how many minutes exposed skin has before frostbite sets in.

UV and sunburn time

Estimate how many minutes of sun your skin can take before it burns, by UV index, skin type and sunscreen.

Hurricane category

Turn a sustained wind speed into a Saffir-Simpson category, with the damage description and the real wind force behind it.

Unit converter

Convert between Fahrenheit and Celsius, mph and km/h, inches of mercury and millibars, and more.