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Daily high

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Model

ECMWF · Run 00Z 2 Oct · Valid Fri 2 Oct highest of 4 × 6 h maxima

Region Europe

United States

Lower 48 Northwest Southwest Northern Plains Southern Plains Midwest Northeast Mid-Atlantic Southeast

Europe

Europe
404050505050505050505060606060606060606060606060606060606060606060607070707070707070707070707070707070808080808080 94.2°18.0°

ECMWF · Run 00Z 2 Oct · Valid Fri 2 Oct highest of 4 × 6 h maxima

Warmest 94.2 °F · coolest 18.0 °F

The highest temperature each point reaches over the whole of the day you choose.

Methodology

A day here runs 00Z to 00Z. The model files its maxima in blocks of 3 to 6 hours, narrower for the nearer days and wider further out — that is how the model publishes it, not a choice this map makes — and each column takes the blocks covering its own local day rather than one window for the whole continent. These are the model's own maxima, so a high here can read a little warmer than the same model's on a city's forecast, which is the warmest of its hourly values. The dashed line, when it appears, is 32 °F.

ECMWF. Of the four models on these pages, two file a daily extremum at all — GFS in 6-hour blocks; ECMWF in 3-hour blocks out to day 6 and 6-hour beyond. The other two publish temperature at instants, from which a daily high cannot honestly be recovered. The switch above draws the same day from the other one.

This map is drawn from model output we store ourselves, not from anyone's picture of it, and is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). The per-city read of the same day — which cities the models are fighting about, and what the discussion makes of it — is on the national page. Every model's full forecast for any of these cities, or anywhere else, is in the beta: request an invite; it's free during the beta.

Sources and licences
  • ECMWF: IFS, from ECMWF's open data. This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Source: www.ecmwf.int. This ECMWF data is published under a Creative Commons Attribution 4.0 International (CC BY 4.0). ECMWF does not accept any liability whatsoever for any error or omission in the data, their availability, or for any loss or damage arising from their use.

What we change: each field is cropped to the frame these maps share when we download it, and each map then smooths, contours, differences or ranks those numbers as its Methodology says. These are our maps of the providers' numbers, not their products, and none of them has reviewed or endorsed this site.

Coastlines, borders, lakes and place names: Natural Earth, public domain.