Heavy hail, sleet and possibly some snow showers are expected in Co. Donegal today.
Met Eireann has a status yellow snow and ice warning in place for the county until midnight tonight.
Drivers are being warned there may be reduced visibility on the roads.
Forecaster Alan O'Reilly says temperature drops will become noticeable this morning..........
Met Eireann Forecast -
Bitterly cold day with widespread heavy showers early on, some of which will be wintry, bringing some possibly icy conditions. Showers (along with isolated thunderstorms) will gradually become confined to Atlantic counties, with spells of winter sunshine developing elsewhere. Highest temperatures of just 2 to 4 degrees Celsius, all in light to moderate west to northwest breezes.
Very cold tonight with a widespread sharp to severe frost and possible icy stretches. Overall dry with long clear spells. However, a few wintry showers will persist closer to the Atlantic, along with isolated thunderstorms. Lowest temperatures of 0 to minus 2 degrees Celsius, in light to moderate northwest breezes.
A widespread frost to begin on Friday with some icy stretches on untreated surfaces. Many areas will stay dry for the day with spells of winter sunshine. However, northwest winds will be brisk, with an added wind chill factor. A few coastal showers will persist too, with isolated hail and thunderstorms. Highest temperatures of just 4 to 6 degrees Celsius.