Hourly Weather Forecast - Arnold, MO

12 AM
19°F
10%
7mph
N
Partly Cloudy
Humidity
68%
Feels like
10°F
Dew Point
10°F
1 AM
17°F
10%
8mph
N
Mostly Clear
Humidity
69%
Feels like
7°F
Dew Point
9°F
2 AM
16°F
10%
8mph
N
Mostly Clear
Humidity
69%
Feels like
5°F
Dew Point
8°F
3 AM
15°F
0%
8mph
N
Mostly Clear
Humidity
68%
Feels like
4°F
Dew Point
6°F
4 AM
13°F
0%
8mph
N
Mostly Clear
Humidity
66%
Feels like
2°F
Dew Point
4°F
5 AM
13°F
0%
8mph
NNW
Mostly Clear
Humidity
64%
Feels like
2°F
Dew Point
3°F
6 AM
12°F
0%
7mph
NNW
Mostly Clear
Humidity
61%
Feels like
1°F
Dew Point
2°F
7 AM
12°F
0%
7mph
NNW
Mostly Clear
Humidity
58%
Feels like
1°F
Dew Point
1°F
7:10 AM
8 AM
13°F
0%
7mph
N
Mostly Sunny
Humidity
57%
Feels like
3°F
Dew Point
1°F
9 AM
15°F
0%
7mph
N
Mostly Sunny
Humidity
53%
Feels like
5°F
Dew Point
1°F
10 AM
17°F
0%
7mph
N
Mostly Sunny
Humidity
48%
Feels like
7°F
Dew Point
1°F
11 AM
19°F
0%
7mph
N
Mostly Sunny
Humidity
43%
Feels like
10°F
Dew Point
1°F
12 PM
21°F
0%
6mph
N
Mostly Sunny
Humidity
40%
Feels like
12°F
Dew Point
0°F
1 PM
22°F
0%
6mph
N
Sunny
Humidity
38%
Feels like
14°F
Dew Point
0°F
2 PM
22°F
0%
6mph
N
Sunny
Humidity
38%
Feels like
14°F
Dew Point
1°F
3 PM
22°F
0%
6mph
N
Sunny
Humidity
39%
Feels like
14°F
Dew Point
1°F
4 PM
21°F
0%
5mph
NNE
Sunny
Humidity
41%
Feels like
14°F
Dew Point
1°F
4:41 PM
5 PM
20°F
0%
4mph
NE
Clear
Humidity
42%
Feels like
14°F
Dew Point
0°F
6 PM
19°F
0%
4mph
NE
Clear
Humidity
44%
Feels like
13°F
Dew Point
1°F
7 PM
18°F
0%
4mph
ENE
Clear
Humidity
47%
Feels like
12°F
Dew Point
1°F
8 PM
18°F
0%
4mph
E
Clear
Humidity
49%
Feels like
11°F
Dew Point
2°F
9 PM
17°F
0%
4mph
E
Clear
Humidity
50%
Feels like
10°F
Dew Point
2°F
10 PM
17°F
0%
4mph
E
Clear
Humidity
51%
Feels like
10°F
Dew Point
2°F
11 PM
16°F
0%
4mph
ESE
Clear
Humidity
52%
Feels like
10°F
Dew Point
2°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