Frequently Asked Questions

Our weather data comes from Open-Meteo, which uses multiple high-resolution weather models including ECMWF, GFS, and regional models. Accuracy varies by timeframe:

• Today/Tomorrow: 85-95% accuracy
• 2-3 Days: 80-90% accuracy
• 4-5 Days: 75-85% accuracy
• 6-7 Days: 70-80% accuracy

WeatherWisping becomes less accurate further into the future due to the chaotic nature of atmospheric systems.

Yes! WeatherWisp is completely free to use. There are no premium tiers, subscriptions, or hidden costs. All features including hourly forecasts, 7-day forecasts, air quality data, and UV index are available to everyone at no charge.

No account is required! Simply visit our website and start searching for weather in any city. Your preferences (like favorite locations, temperature units, and theme) are saved locally in your browser.

Weather data is updated every 15 minutes for current conditions. Forecast models are typically updated every 1-6 hours depending on the model. When you search for a location, you always get the latest available data.

After searching for a city and viewing its weather, click the heart icon (❤️) next to the city name. The location will be saved to your favorites and appear at the top of the page for quick access. Click the heart again to remove it from favorites.

Click the temperature unit button (showing °C or °F) in the top-right corner of the page. Your preference is saved and will be remembered for future visits.

Click the sun/moon icon (☀️/🌙) in the top-right corner to toggle between light and dark modes. Your preference is saved automatically.

Yes! Click the "Use My Location" button below the search bar. Your browser will ask for permission to access your location. Once granted, we'll show the weather for your current position.

The UV Index measures the strength of ultraviolet radiation from the sun. Higher values mean greater risk of skin and eye damage:

• 0-2 (Low): Minimal protection needed
• 3-5 (Moderate): Wear sunscreen, hat recommended
• 6-7 (High): Protection essential, reduce sun exposure
• 8-10 (Very High): Extra protection needed, avoid midday sun
• 11+ (Extreme): Take all precautions, unprotected skin burns quickly

AQI measures air pollution levels and its potential health effects:

• 0-50 (Good): Air quality is satisfactory
• 51-100 (Moderate): Acceptable; some pollutants may concern very sensitive individuals
• 101-150 (Unhealthy for Sensitive Groups): Sensitive groups may experience health effects
• 151-200 (Unhealthy): Everyone may begin to experience health effects
• 201-300 (Very Unhealthy): Health alert; everyone may experience serious effects
• 301+ (Hazardous): Health emergency; entire population affected

"Feels Like" (also called apparent temperature) takes into account humidity and wind to describe how the temperature actually feels to humans. On humid days, it feels warmer than the actual temperature. On windy days, it feels cooler (wind chill effect).

Precipitation probability (shown as a percentage) indicates the likelihood of rain, snow, or other precipitation occurring at that location during the forecast period. For example, 70% means there's a 70% chance of precipitation. It doesn't indicate how long or how much it will rain.

Wind direction indicates where the wind is coming FROM, not where it's going. For example, "North" or "N" means the wind is blowing from the north toward the south. We show this using compass directions (N, NE, E, SE, S, SW, W, NW).

WeatherWisp requires an internet connection to fetch current weather data. However, your preferences and favorite locations are stored locally and will be available when you reconnect.

We respect your privacy. We don't require accounts, don't track your searches, and don't sell any data. Location data (when you use "My Location") is only used to fetch weather and is never stored on our servers. Preferences are stored locally in your browser.

WeatherWisp works on all modern browsers including:

• Google Chrome (recommended)
• Mozilla Firefox
• Safari
• Microsoft Edge
• Opera

For the best experience, please ensure your browser is up to date.