About WeatherSignal

WeatherSignal is an informational weather service. You type in any location in the world — or let the site detect one — and get current conditions, an hour-by-hour forecast, a seven-day outlook, active official warnings, air quality, radar, sunrise and sunset, and the practical WeatherSignal checks that sit on top of all of it.

Everything is free to read. There is no account, no paywall, and no login required for any weather information on this site.

• Current conditions and feels-like temperature for locations worldwide
• Hourly forecast for the next 24 hours and a 7-day outlook
• Active official watches, warnings, and advisories, shown with the issuing agency and expiration
• Air quality readings with the published category guidance for the scale in use
• Radar access, travel and outdoor conditions, and infrastructure/network incident monitoring
• WeatherSignal practical checks — Today's Weather Score, Umbrella or Nah?, Best Time Today, Car Wash Check, Dog Walk Window, Cookout Check, Windows Down?, Hair Weather

Most weather pages hand you a wall of numbers and leave the interpretation to you. Reading “62% precipitation probability at 15:00, dew point 71°F, wind 19 mph” is not the same as knowing whether to take an umbrella, when to walk the dog, or whether the cookout is still on. WeatherSignal exists to close that gap without dumbing the data down — every answer shows the numbers it came from.

WeatherSignal does not produce forecasts or issue warnings. Meteorological agencies and open forecast models do that. What WeatherSignal adds is a product layer:

• Normalization — several providers with different units, codes, and time bases are converted into one consistent schema.
• Deterministic calculations — scores, windows, and checks computed with published, fixed thresholds. No AI guesses the weather here.
• Plain-language explanation — each answer states the values it used, so you can disagree with it.
• Visible freshness — every panel shows when the source published the data and when WeatherSignal last checked it, and flags stale data instead of hiding it.
• Prioritized severe weather — official warnings appear above WeatherSignal content, never below it and never behind an ad.

The exact formulas are documented on our methodology page, and every provider we use is listed on our data sources page.

WeatherSignal is informational only. It does not replace official warnings, forecasts, or guidance from national weather services, emergency management agencies, or other government authorities, and it does not provide medical, emergency, safety, legal, or financial advice. During severe weather, follow the instructions issued by official authorities.

WeatherSignal is operated by BAIFI Analytics and Defense LLC, doing business as WeatherSignal.

Contact: baifi@baifisystems.com — or use the contact page.

WeatherSignal is free and funded by voluntary donations and, in future, advertising. Donating does not unlock features, improve forecast accuracy, or affect alert delivery in any way — it only helps cover data and hosting costs.