Hourly Weather Forecast - Portmarnock, , IE

12 AM
45°F
40%
11mph
ESE
40% Chance of Light Rain
Humidity
90%
Feels like
40°F
Dew Point
42°F
1 AM
45°F
40%
11mph
ESE
40% Chance of Light Rain
Humidity
90%
Feels like
39°F
Dew Point
42°F
2 AM
44°F
40%
11mph
ESE
40% Chance of Light Rain
Humidity
90%
Feels like
39°F
Dew Point
42°F
3 AM
44°F
40%
11mph
ESE
40% Chance of Light Rain
Humidity
91%
Feels like
38°F
Dew Point
42°F

Thursday's Low Temperatures

Dangerous Cold, Lake-Effect Snow Grip Eastern U.S.

Frigid air will penetrate deep into the Eastern U.S. by midweek, with lake-effect snow lasting through Thursday.

Thursday's Weather Outlook

Thursday's Weather Outlook

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

Weekly Drought Map for January 22, 2026

Tranquil Weather Pattern Worsens Drought Depiction Nationwide

How to Measure Snow via NWS

How To Measure Snow

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