Hourly Weather Forecast - Arnold, MD

9 AM
30°F
40%
9mph
NW
40% Chance of Heavy Snow
Humidity
88%
Feels like
22°F
Dew Point
27°F
10 AM
29°F
30%
10mph
NW
30% Chance of Snow
Humidity
81%
Feels like
20°F
Dew Point
24°F
11 AM
28°F
10%
11mph
NW
Partly Cloudy
Humidity
76%
Feels like
19°F
Dew Point
22°F
12 PM
28°F
0%
11mph
NW
Partly Cloudy
Humidity
73%
Feels like
18°F
Dew Point
20°F
1 PM
27°F
0%
12mph
NW
Partly Cloudy
Humidity
70%
Feels like
16°F
Dew Point
18°F
2 PM
26°F
0%
12mph
NW
Partly Cloudy
Humidity
66%
Feels like
15°F
Dew Point
16°F
3 PM
24°F
0%
12mph
NW
Partly Cloudy
Humidity
64%
Feels like
12°F
Dew Point
13°F
4 PM
22°F
0%
12mph
NW
Mostly Sunny
Humidity
62%
Feels like
10°F
Dew Point
11°F
4:44 PM
5 PM
21°F
0%
12mph
NW
Mostly Clear
Humidity
61%
Feels like
8°F
Dew Point
9°F
6 PM
19°F
0%
12mph
NW
Clear
Humidity
61%
Feels like
7°F
Dew Point
8°F
7 PM
19°F
0%
11mph
WNW
Clear
Humidity
62%
Feels like
6°F
Dew Point
8°F
8 PM
18°F
0%
11mph
WNW
Clear
Humidity
64%
Feels like
6°F
Dew Point
8°F
9 PM
18°F
0%
11mph
NW
Clear
Humidity
65%
Feels like
6°F
Dew Point
9°F
10 PM
19°F
0%
11mph
NW
Clear
Humidity
66%
Feels like
7°F
Dew Point
9°F
11 PM
19°F
0%
10mph
NW
Clear
Humidity
67%
Feels like
7°F
Dew Point
10°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide