Hourly Weather Forecast - Arnold, MD

11 AM
38°F
10%
8mph
SSW
Mostly Cloudy
Humidity
81%
Feels like
32°F
Dew Point
33°F
12 PM
39°F
10%
8mph
SSW
Mostly Cloudy
Humidity
80%
Feels like
34°F
Dew Point
34°F
1 PM
40°F
10%
8mph
SSW
Cloudy
Humidity
80%
Feels like
35°F
Dew Point
35°F
2 PM
41°F
10%
8mph
SSW
Cloudy
Humidity
80%
Feels like
36°F
Dew Point
35°F
3 PM
41°F
20%
7mph
SSW
Cloudy
Humidity
81%
Feels like
36°F
Dew Point
35°F
4 PM
41°F
30%
7mph
SSW
30% Chance of Light Rain
Humidity
81%
Feels like
36°F
Dew Point
35°F
4:43 PM
5 PM
41°F
30%
6mph
SSW
30% Chance of Light Rain
Humidity
81%
Feels like
37°F
Dew Point
36°F
6 PM
41°F
30%
6mph
SW
30% Chance of Light Rain
Humidity
81%
Feels like
37°F
Dew Point
36°F
7 PM
42°F
30%
6mph
SW
30% Chance of Light Rain
Humidity
81%
Feels like
37°F
Dew Point
36°F
8 PM
41°F
10%
6mph
SW
Mostly Cloudy
Humidity
82%
Feels like
37°F
Dew Point
36°F
9 PM
41°F
10%
6mph
SW
Partly Cloudy
Humidity
83%
Feels like
37°F
Dew Point
36°F
10 PM
40°F
10%
6mph
WSW
Partly Cloudy
Humidity
84%
Feels like
36°F
Dew Point
36°F
11 PM
40°F
10%
6mph
WSW
Partly Cloudy
Humidity
84%
Feels like
36°F
Dew Point
36°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

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

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide