Is the ExtremeCast weather map free?

Yes. The weather map for Italy and Europe is completely free and requires no account: sky, temperature, rain, location cards, meteogram and observed radar.

Which models are behind the forecast?

ExtremeCast compares several weather models and produces its own reading, picking for each area the best high-resolution source available — down to 1 km where national services publish it — and showing a reliability index that says how much the models agree.

Is severe-storm risk available outside Italy?

No. The severe-risk product is Italy-only because it is verified nightly against Italian radar, ground stations and human storm reports. Extending it requires rebuilding that ground truth for each country.

Europe weather map: how ExtremeCast works

🌍 All of Europe, the best model for every country

The map doesn't stop at the border: zoom out and you get the whole continent — from Lapland to Gibraltar, from Lisbon to Istanbul. And not by stretching one global model over Europe: ExtremeCast compares several sources and picks, for each area, the best high-resolution model available, merging everything into its own reading.

Weather map of Europe with the high-definition temperature layer and cities showing icons and values, from Lisbon to Kyiv — The **Temperature** layer across Europe: continuous high-definition rendering, cities with icon and value, and one hour slider moving the entire continent.

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Local detail

Where a high-resolution national model exists, you get its detail — down to 1 km in the Alps and Scandinavia — instead of a continental average.

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One reading

Several sources compared and merged by ExtremeCast into a single, consistent forecast: no gaps, no jumps at the borders.

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Agreement shown

Every card carries a reliability index: how much the models agree here, right now.

Every place gets the best source available for it, and your card stays complete everywhere — up to 4 days ahead.

Rain probability and reliability — our own numbers

Two values in every location card come from our processing, not from a single model:

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Rain probability

Built from several independent models and from the behaviour of the surrounding area — because a shower is a local affair: what the number really tells you is how likely rain is around you.

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Reliability index

How much the models agree on your spot. High = solid forecast; low = the atmosphere is uncertain here, worth checking again later. We show uncertainty rather than hiding it.

Weather shows the actual forecast (what the sky will do). Severe risk — hail, damaging gusts, torrential rain — is a separate product and, for now, Italy only: it is verified every night against Italian radar and ground truth.

The layers: sky, temperature, rain — and radar over Italy

One tap changes how you read the map. Sky shows cloud cover and weather type; Temperature paints the continent in thermal bands; Rain highlights where and how much it will rain, staying transparent where it stays dry. Radar shows the real, observed echoes (currently Italy).

Rain layer over Europe: forecast precipitation highlighted in blue over the coming hours — The **Rain** layer: where and how much it will rain, transparent where it stays dry.

Europe map in icon mode at night with conditions and temperatures city by city — The **icons**, city by city, day and night: the same instant read everywhere in Europe.

Search, click, meteogram

Type "Paris", "München", "Den Haag" or "L'Aia": the search knows 70,000+ European places, in local names and Italian exonyms alike. Or just click anywhere on the map — a Pyrenean village or a Norwegian fjord — and the full card opens: temperature and feels-like, rain probability, wind, humidity, cloud cover, reliability, plus the interactive meteogram with the next hours at a glance.

Interactive meteogram: temperature, feels-like, rain, clouds, wind, humidity and pressure hour by hour — The **meteogram**: seven variables over the coming hours, with the "now" line and values updating as you scroll.

How often it updates

The map is rebuilt every 3 hours, and each source is refreshed as soon as a new run is published. The location card you open with a click is live: it is computed on the spot, so it always reflects the freshest data available.

Data: Open-Meteo and national weather services (DWD, Météo-France, MeteoSwiss, GeoSphere, KNMI, DMI, MET Norway, CHMI, UK Met Office, ARPAE) — CC-BY licence. Model selection, rain probability and reliability index: ExtremeCast processing. Radar over Italy: Italian Civil Protection Department.

Also in ExtremeCast — Italy only

Two more products live inside ExtremeCast and are, today, available for Italy only: the severe-storm risk map (hail, damaging gusts, torrential rain, storm cells, e-mail alerts) and Mountain (weather at the real altitude of 46,000 peaks, huts, passes and trails, with a winter ski mode). Both are built on ground truth we can verify — Italian radar, 3,750+ ground stations and human storm reports — which is exactly why we don't pretend they work elsewhere yet. Their pages are in Italian: severe risk · mountain.

Everyday weather, done properly.