Hourly Weather Forecast - Arnold, MD

12 AM
22°F
0%
8mph
NW
Clear
Humidity
60%
Feels like
13°F
Dew Point
10°F
1 AM
22°F
0%
8mph
NW
Clear
Humidity
59%
Feels like
12°F
Dew Point
10°F
2 AM
22°F
0%
8mph
NW
Clear
Humidity
59%
Feels like
13°F
Dew Point
10°F
3 AM
22°F
0%
7mph
NW
Clear
Humidity
58%
Feels like
13°F
Dew Point
10°F
4 AM
22°F
0%
7mph
NW
Clear
Humidity
57%
Feels like
14°F
Dew Point
10°F
5 AM
23°F
0%
7mph
NW
Clear
Humidity
56%
Feels like
14°F
Dew Point
10°F
6 AM
21°F
0%
7mph
NW
Clear
Humidity
61%
Feels like
13°F
Dew Point
10°F
7 AM
20°F
0%
7mph
NW
Clear
Humidity
66%
Feels like
11°F
Dew Point
10°F
7:17 AM
8 AM
20°F
0%
6mph
NW
Sunny
Humidity
68%
Feels like
11°F
Dew Point
11°F
9 AM
22°F
0%
7mph
NW
Sunny
Humidity
64%
Feels like
13°F
Dew Point
11°F
10 AM
25°F
0%
7mph
NW
Sunny
Humidity
58%
Feels like
16°F
Dew Point
12°F
11 AM
27°F
0%
7mph
NW
Sunny
Humidity
55%
Feels like
19°F
Dew Point
13°F
12 PM
28°F
0%
7mph
NW
Mostly Sunny
Humidity
52%
Feels like
21°F
Dew Point
13°F
1 PM
29°F
0%
6mph
NW
Partly Cloudy
Humidity
51%
Feels like
22°F
Dew Point
13°F
2 PM
29°F
0%
6mph
NW
Partly Cloudy
Humidity
51%
Feels like
23°F
Dew Point
13°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday'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