Advanced Weather Forecast

While 1- to 3-day forecasts are highly accurate...

Hourly forecasts provide highly granular, short-term data predicting exact temperature, wind, and precipitation chances for every hour. Daily forecasts summarize the weather for an entire 24-hour period, providing the expected high/low temperatures and overarching conditions.

The 'Feels Like' or apparent temperature factors in relative humidity and wind speed. High humidity makes warm air feel hotter (heat index), while high winds make cold air feel colder (wind chill) by drawing heat away from the body.

Precipitation probability (PoP) represents the statistical likelihood of measurable precipitation occurring at a specific point in the forecast area during the specified time period, combining confidence of rain and expected coverage.

This tool uses the Open-Meteo API, which aggregates data from highly reliable global numerical weather prediction models, including NOAA's GFS and Europe's ECMWF, ensuring scientific accuracy without interpolation.

The UV Index measures the strength of sunburn-producing ultraviolet radiation. Values of 0-2 require minimal protection, while 8 or higher means extreme risk of harm from unprotected sun exposure, requiring sunscreen, shade, and protective clothing.

Changes in barometric pressure indicate atmospheric movement. Rising pressure generally signifies clearing skies and stable weather, whereas falling pressure often precedes clouds, storms, and precipitation.

The atmosphere is incredibly dynamic. As new observational data (from satellites, radar, and weather balloons) enters the supercomputers, the models run new calculations, sometimes shifting the forecast slightly as a weather system evolves.

The dew point is the temperature at which the air becomes fully saturated with moisture (100% relative humidity). Dew points above 65°F feel 'muggy', while those above 70°F feel oppressive.

No. While enabling GPS allows the tool to instantly fetch weather for your exact coordinates, you can simply type any city, town, or ZIP code into the search bar to retrieve the forecast.

Yes. The settings menu allows you to instantly toggle between Celsius and Fahrenheit, as well as change wind speeds (mph, km/h) and pressure units (hPa, mmHg).

Microclimates caused by local geography, such as mountains, lakes, or dense urban areas, can cause significant deviations in temperature and precipitation from regional models. High-resolution localized forecasts account for these variables better.

A 90% rain probability means there is a 9 out of 10 chance that measurable rain will fall at your specific location during that time frame. It does not necessarily mean it will rain 90% of the day.

Weather models predict conditions for a broad grid (often 10km by 10km). If a rain shower is highly localized, it might hit your neighbor's house but miss yours, making the forecast seem incorrect.

Meteorologists continuously update forecasts as new satellite and radar data is ingested into supercomputers. A slight shift in wind direction can drastically change where a storm tracks, altering the forecast overnight.

While average wind speed measures the sustained wind over a period, a wind gust is a sudden, brief increase in the speed of the wind, often lasting less than 20 seconds. Gusts are what cause tree damage during storms.

The atmosphere obeys the laws of chaos theory (the butterfly effect). A tiny error in measuring current conditions will compound exponentially over time, making exact predictions beyond 7 days highly unreliable.

A microclimate is a small, restricted area whose climate differs from the surrounding region. Examples include coastal breezes keeping beaches cooler than inland areas, or cities retaining heat (urban heat island).

Open-Meteo is highly accurate because it does not attempt to reinvent weather forecasting; instead, it provides direct, unadulterated access to the world's most advanced national weather models like NOAA (US) and DWD (Germany).

The European Centre for Medium-Range Weather Forecasts (ECMWF) runs one of the world's most respected global weather models. It is widely considered the gold standard for medium-range forecasts.

The Global Forecast System (GFS) is a mathematical weather model produced by the National Centers for Environmental Prediction (NCEP) in the United States. It updates four times a day and tracks global weather patterns.

High humidity prevents your sweat from evaporating efficiently, making it harder for your body to cool down. This is why 90°F in high humidity feels much worse than 90°F in dry heat.

CAPE measures the amount of energy available to create thunderstorms. High CAPE values indicate an unstable atmosphere where severe thunderstorms, hail, or even tornadoes could develop.

A low pressure area usually brings clouds, wind, and precipitation. Because air rises in a low pressure system, it cools and condenses into clouds and rain.

High pressure systems generally bring dry, clear, and calm weather. The descending air suppresses cloud formation, leading to sunny days and clear nights.

Visibility measures the greatest distance at which an object can be seen and identified. Fog, heavy rain, snow, and smoke can severely reduce visibility, impacting driving and aviation.

Different models excel at different things. Global models (like GFS) are great for long-term trends, while high-resolution local models (like HRRR or ICON-D2) are better at predicting exactly when a thunderstorm will hit your neighborhood.

The open data models typically update every 1 to 6 hours, depending on the specific model being used. Our tool fetches the most recent run available via Open-Meteo.

Rain is generally steady and widespread, caused by large-scale weather systems. Showers are brief, intermittent, and localized, often caused by convective clouds like cumulus.

Freezing rain is rain that falls as a liquid but freezes immediately upon hitting a cold surface (like a road or power line), creating dangerous ice glazes.

Sleet consists of small ice pellets that bounce when hitting the ground. It occurs when snowflakes melt in a warm layer of air, then refreeze before reaching the ground.

Snow is measured using a snowboard (a flat, white surface) and a ruler, or by melting the snow to determine its liquid water equivalent. On average, 10 inches of snow melts into 1 inch of water.

Wind is caused by air moving from areas of high pressure to areas of low pressure. The larger the pressure difference, the stronger the wind.

A weather front is a boundary separating two different air masses. Cold fronts often bring thunderstorms and cooler temperatures, while warm fronts bring steady rain followed by milder weather.

The sky is blue due to Rayleigh scattering. Gases and particles in Earth's atmosphere scatter short-wavelength light (blue and violet) more than long-wavelength light (red and yellow).

The jet stream is a fast-flowing, narrow air current found in the upper atmosphere. It strongly influences weather patterns by steering storm systems across the globe.

Relative humidity is the amount of water vapor present in the air compared to the maximum amount the air could hold at that specific temperature. Warm air can hold more moisture than cold air.

A heat wave is a prolonged period of excessively hot weather, often accompanied by high humidity. Definitions vary by region, but it generally means temperatures are well above historical averages.

Wind chill is the perceived decrease in air temperature felt by the body on exposed skin due to the flow of air. It accelerates heat loss from the body.

No. Weather apps rely on computer models that cannot account for every tiny atmospheric variable. While highly accurate for the next 48 hours, long-term predictions should be treated as probabilities, not certainties.

No. Neither the USGS nor any other scientists have ever predicted a major earthquake. We can only calculate the probability of a future earthquake occurring.

Magnitude is a number that characterizes the relative size of an earthquake, based on measurement of the maximum motion recorded by a seismograph.

Earthquake depth refers to the depth at which the earthquake initiates (the hypocenter). Shallow quakes are typically more damaging than deep ones.

Aftershocks are the earth's crust readjusting to the stress changes caused by the mainshock. They are entirely normal and can continue for months or even years.

An earthquake might not be felt if its magnitude is too low (usually under 2.5 or 3.0), or if its epicenter is very deep or far away from populated areas.

This depends on the magnitude and depth of the earthquake, as well as the local geology. Soft soils can amplify shaking over larger distances than solid bedrock.

The Ring of Fire is a horseshoe-shaped belt of intense volcanic and seismic activity that borders the Pacific Ocean, where most of the world's earthquakes occur.

A fault is a fracture or zone of fractures between two blocks of rock. Earthquakes occur when these blocks move relative to each other.

The hypocenter is the point within the earth where an earthquake rupture starts. The epicenter is the point directly above it at the surface of the Earth.

There is no scientific evidence that animals can predict earthquakes. Some animals may feel the initial, faster-traveling P-waves before humans feel the stronger S-waves, giving the illusion of prediction.

Most tsunamis are caused by large earthquakes on the sea floor when slabs of rock move past each other suddenly, displacing a massive amount of water.

No. The USGS states that the frequency of major earthquakes has remained relatively constant. However, we have more seismic instruments deployed globally, so we detect more small earthquakes.

A seismograph is an instrument that measures and records details of earthquakes, such as force and duration.

No. There is no such thing as 'earthquake weather'. Earthquakes are driven by tectonic forces deep underground, completely disconnected from atmospheric weather.

A negative depth means the earthquake occurred above sea level, typically inside a mountain or volcano.

Liquefaction occurs when water-saturated sandy soils temporarily lose strength and act like a liquid during strong earthquake shaking, causing buildings to sink or tilt.

Most earthquakes last only a few seconds to a minute. Very large earthquakes, like the magnitude 9.1 in Sumatra in 2004, can last for up to 10 minutes.

Yes. The disposal of wastewater from fracking and other oil/gas operations into deep wells can induce earthquakes by increasing pressure along ancient fault lines.

The Richter scale is an outdated method for measuring earthquake magnitude. Today, the Moment Magnitude scale (Mw) is used by the USGS as it is more accurate for large earthquakes.

The largest recorded earthquake was a magnitude 9.5 in Chile on May 22, 1960. It caused a massive tsunami that traveled across the Pacific Ocean.