The frost forecast percentage is generated by combining data from different computer models.
The frost calculation is based on runs forecasting temperatures to fall to or below 0C. Ground frost is considered possible at 3.5C or lower.
Will there be frost today, tomorrow or the day after?
Will there be frost during the following ten days?
Will there be ground frost today, tomorrow or the day after?
Will there be ground frost during the following ten days?
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Models include UK Met Office UKV and MOGREPS-G, ECMWF, NCEP GFS, Meteo France Arpege and Arome.