It will end at 10am tomorrow.
A fog warning has been issued for 11 counties, including Kildare.
The status yellow alert will come into effect at 5am for all of Leinster - with the exception of Carlow, Kilkenny and Wexford.
It's due to expire at 10am.
Road-users are warned to take extra, with pockets of dense fog expected.

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Yellow Fog Warning Issued For Kildare
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Almost €68K Announced For Kildare Community Centres
Sallins Man Onboard Diverted Aer Lingus Flight Shares His Experience