Hourly Weather Forecast - Arnold, MO

12 AM
26°F
0%
9mph
WNW
Mostly Cloudy
Humidity
57%
Feels like
16°F
Dew Point
13°F
1 AM
25°F
0%
9mph
WNW
Mostly Cloudy
Humidity
58%
Feels like
16°F
Dew Point
12°F
2 AM
24°F
0%
8mph
WNW
Partly Cloudy
Humidity
58%
Feels like
15°F
Dew Point
12°F
3 AM
24°F
0%
7mph
WNW
Partly Cloudy
Humidity
59%
Feels like
15°F
Dew Point
12°F
4 AM
23°F
0%
6mph
WNW
Partly Cloudy
Humidity
60%
Feels like
16°F
Dew Point
12°F
5 AM
23°F
0%
5mph
NW
Mostly Clear
Humidity
62%
Feels like
16°F
Dew Point
12°F
6 AM
23°F
0%
5mph
WNW
Clear
Humidity
62%
Feels like
17°F
Dew Point
12°F
7 AM
24°F
0%
5mph
WNW
Clear
Humidity
61%
Feels like
17°F
Dew Point
12°F
7:14 AM
8 AM
25°F
0%
5mph
WNW
Sunny
Humidity
62%
Feels like
18°F
Dew Point
13°F
9 AM
26°F
0%
5mph
W
Sunny
Humidity
60%
Feels like
20°F
Dew Point
14°F
10 AM
28°F
0%
4mph
WSW
Sunny
Humidity
56%
Feels like
23°F
Dew Point
15°F
11 AM
30°F
0%
4mph
SW
Sunny
Humidity
53%
Feels like
27°F
Dew Point
15°F
12 PM
32°F
0%
4mph
SSW
Sunny
Humidity
51%
Feels like
28°F
Dew Point
16°F
1 PM
33°F
0%
5mph
S
Sunny
Humidity
50%
Feels like
29°F
Dew Point
17°F
2 PM
34°F
0%
6mph
SSE
Sunny
Humidity
51%
Feels like
29°F
Dew Point
18°F
3 PM
34°F
0%
6mph
SSE
Sunny
Humidity
53%
Feels like
28°F
Dew Point
19°F
4 PM
33°F
0%
7mph
SSE
Sunny
Humidity
57%
Feels like
27°F
Dew Point
20°F
4:43 PM
5 PM
32°F
0%
7mph
SSE
Clear
Humidity
61%
Feels like
26°F
Dew Point
20°F
6 PM
32°F
0%
7mph
SSE
Clear
Humidity
63%
Feels like
25°F
Dew Point
21°F
7 PM
32°F
0%
8mph
SSE
Clear
Humidity
66%
Feels like
25°F
Dew Point
22°F
8 PM
32°F
0%
8mph
SSE
Clear
Humidity
69%
Feels like
25°F
Dew Point
23°F
9 PM
32°F
0%
8mph
S
Clear
Humidity
71%
Feels like
25°F
Dew Point
24°F
10 PM
33°F
0%
9mph
S
Mostly Clear
Humidity
72%
Feels like
25°F
Dew Point
25°F
11 PM
33°F
0%
9mph
S
Partly Cloudy
Humidity
71%
Feels like
26°F
Dew Point
25°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

Monday's Weather Outlook

Monday'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