Hourly Weather Forecast - Letterkenny, Ulster, IE

12 AM
45°F
0%
7mph
SW
Mostly Cloudy
Humidity
89%
Feels like
41°F
Dew Point
42°F
1 AM
44°F
0%
6mph
SW
Partly Cloudy
Humidity
88%
Feels like
41°F
Dew Point
41°F
2 AM
44°F
0%
6mph
SW
Partly Cloudy
Humidity
88%
Feels like
40°F
Dew Point
40°F
3 AM
43°F
10%
6mph
SSW
Partly Cloudy
Humidity
88%
Feels like
39°F
Dew Point
39°F
4 AM
42°F
10%
6mph
SSW
Partly Cloudy
Humidity
90%
Feels like
38°F
Dew Point
40°F
5 AM
42°F
10%
6mph
SSW
Partly Cloudy
Humidity
91%
Feels like
38°F
Dew Point
40°F
6 AM
42°F
10%
6mph
SSW
Partly Cloudy
Humidity
91%
Feels like
38°F
Dew Point
40°F
7 AM
42°F
10%
6mph
S
Partly Cloudy
Humidity
88%
Feels like
38°F
Dew Point
39°F
8 AM
42°F
10%
6mph
S
Partly Cloudy
Humidity
84%
Feels like
38°F
Dew Point
38°F
8:49 AM
9 AM
42°F
10%
6mph
S
Partly Cloudy
Humidity
81%
Feels like
39°F
Dew Point
37°F
10 AM
43°F
10%
6mph
SSW
Partly Cloudy
Humidity
81%
Feels like
40°F
Dew Point
38°F
11 AM
44°F
10%
6mph
SSW
Mostly Cloudy
Humidity
82%
Feels like
41°F
Dew Point
39°F
12 PM
45°F
10%
8mph
SSW
Mostly Cloudy
Humidity
82%
Feels like
41°F
Dew Point
40°F
1 PM
46°F
0%
8mph
SSW
Cloudy
Humidity
81%
Feels like
41°F
Dew Point
40°F
2 PM
46°F
0%
7mph
SSW
Partly Cloudy
Humidity
82%
Feels like
42°F
Dew Point
40°F
3 PM
45°F
0%
6mph
SSW
Mostly Cloudy
Humidity
84%
Feels like
41°F
Dew Point
40°F
4 PM
44°F
10%
6mph
SSW
Cloudy
Humidity
86%
Feels like
40°F
Dew Point
40°F
4:02 PM
5 PM
42°F
10%
4mph
SSW
Cloudy
Humidity
88%
Feels like
40°F
Dew Point
39°F
6 PM
41°F
10%
4mph
SSW
Cloudy
Humidity
90%
Feels like
38°F
Dew Point
38°F
7 PM
40°F
10%
4mph
SSW
Cloudy
Humidity
90%
Feels like
37°F
Dew Point
38°F
8 PM
40°F
10%
4mph
SSW
Mostly Cloudy
Humidity
92%
Feels like
37°F
Dew Point
38°F
9 PM
39°F
10%
4mph
SSW
Mostly Cloudy
Humidity
93%
Feels like
36°F
Dew Point
37°F
10 PM
39°F
10%
4mph
SSW
Partly Cloudy
Humidity
93%
Feels like
35°F
Dew Point
37°F
11 PM
38°F
0%
5mph
SSW
Partly Cloudy
Humidity
94%
Feels like
34°F
Dew Point
36°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Sunday Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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