Hourly Weather Forecast - Arnold, MD

1 AM
30°F
0%
7mph
SSW
Mostly Cloudy
Humidity
86%
Feels like
23°F
Dew Point
27°F
2 AM
31°F
0%
7mph
SSW
Mostly Cloudy
Humidity
86%
Feels like
24°F
Dew Point
27°F
3 AM
31°F
0%
7mph
SSW
Mostly Cloudy
Humidity
87%
Feels like
24°F
Dew Point
28°F
4 AM
31°F
0%
6mph
SSW
Partly Cloudy
Humidity
88%
Feels like
25°F
Dew Point
28°F
5 AM
32°F
0%
6mph
SSW
Partly Cloudy
Humidity
89%
Feels like
26°F
Dew Point
29°F
6 AM
32°F
0%
6mph
SSW
Partly Cloudy
Humidity
90%
Feels like
26°F
Dew Point
30°F
7 AM
33°F
0%
7mph
SSW
Mostly Cloudy
Humidity
88%
Feels like
27°F
Dew Point
30°F
7:13 AM
8 AM
35°F
10%
8mph
SSW
Partly Cloudy
Humidity
84%
Feels like
29°F
Dew Point
31°F
9 AM
37°F
10%
9mph
SSW
Mostly Cloudy
Humidity
81%
Feels like
31°F
Dew Point
32°F
10 AM
39°F
10%
9mph
SSW
Mostly Cloudy
Humidity
78%
Feels like
33°F
Dew Point
33°F
11 AM
41°F
10%
10mph
SSW
Cloudy
Humidity
78%
Feels like
35°F
Dew Point
34°F
12 PM
42°F
10%
10mph
SSW
Cloudy
Humidity
77%
Feels like
36°F
Dew Point
35°F
1 PM
42°F
20%
9mph
SSW
Cloudy
Humidity
76%
Feels like
37°F
Dew Point
35°F
2 PM
42°F
30%
9mph
SSW
30% Chance of Light Rain
Humidity
78%
Feels like
37°F
Dew Point
36°F
3 PM
42°F
40%
8mph
SSW
40% Chance of Light Rain
Humidity
81%
Feels like
37°F
Dew Point
36°F
4 PM
41°F
30%
8mph
SSW
30% Chance of Light Rain
Humidity
81%
Feels like
36°F
Dew Point
36°F
4:43 PM
5 PM
41°F
20%
7mph
SSW
Cloudy
Humidity
81%
Feels like
36°F
Dew Point
36°F
6 PM
41°F
20%
7mph
SW
Cloudy
Humidity
82%
Feels like
36°F
Dew Point
36°F
7 PM
40°F
10%
7mph
SW
Cloudy
Humidity
84%
Feels like
35°F
Dew Point
36°F
8 PM
40°F
10%
7mph
SW
Mostly Cloudy
Humidity
86%
Feels like
35°F
Dew Point
36°F
9 PM
40°F
10%
7mph
WSW
Partly Cloudy
Humidity
86%
Feels like
35°F
Dew Point
36°F
10 PM
40°F
10%
7mph
WSW
Partly Cloudy
Humidity
85%
Feels like
35°F
Dew Point
36°F
11 PM
40°F
10%
7mph
WSW
Partly Cloudy
Humidity
83%
Feels like
35°F
Dew Point
35°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