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National Forecast

Issued at: 17 September 2019 20:13

TONIGHT

Cool and dry overnight with clear skies, a few shallow fog patches will form before dawn. Lowest temperatures of 3 to 7 degrees in light breezes.

TOMORROW - Wednesday 18th September

Dry and sunny again tomorrow but there will be a partial build-up of cloud in northern areas during the afternoon. After a cool start to the morning it will feel warm by early afternoon with top temperatures of 17 to 21 degrees in light, variable breezes.

National Outlook

High pressure will be centred near or over Ireland for a few days, bringing mostly dry, settled conditions, with sunny spells each day and warm in that sunshine. But turning changeable and unsettled during the weekend.

Cool Wednesday night, with a mix of clear spells and cloudy periods. Some patches of mist will form and will thicken into fog in a few places. Lowest temperatures 5 to 8 C., in light southeast breezes.

Warm and dry on Thursday, with good sunny spells, but occasional cloudy periods too. Top temperatures of 17 to 19 C., generally, but locally 20 or 21 C., in a few central locations. Mild and breezy overnight and dry, with lows of 7 to 10 C. Winds moderate to fresh southeasterly.

Breezy on Friday too, with fresh and gusty southeasterly winds. Another dry day, with a mix of sunny spells and occasional cloudy periods. Top temperatures 18 to 21 C., in central, western and northern areas, but a little cooler on east and south coasts. Mild and breezy overnight, with lows of 12 or 13 C.

Turning more unsettled an changeable this weekend. Weather fronts due in off the Atlantic, but some uncertainty re details.
Charts today suggest a breezy day on Saturday, but with some hazy sunshine to start, but soon becoming cloudy along the south and west coasts, with some rain or showers likely to develop there. Warm in sunshine, with temperatures in the high teens or a little higher, but fresher in the duller areas and on exposed coasts, due to fresh and gusty southeast winds.

Breezy overnight and on Sunday, with rain at times and turning fresher also.

 

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