Hourly Weather Forecast - Arnold, MO

12 AM
31°F
10%
6mph
NW
Cloudy
Humidity
77%
Feels like
25°F
Dew Point
25°F
1 AM
30°F
10%
6mph
NW
Mostly Cloudy
Humidity
76%
Feels like
24°F
Dew Point
24°F
2 AM
29°F
10%
6mph
NW
Partly Cloudy
Humidity
77%
Feels like
23°F
Dew Point
23°F
3 AM
29°F
10%
5mph
NW
Partly Cloudy
Humidity
78%
Feels like
23°F
Dew Point
23°F
4 AM
28°F
10%
4mph
NW
Mostly Cloudy
Humidity
77%
Feels like
23°F
Dew Point
22°F
5 AM
28°F
10%
4mph
NW
Mostly Cloudy
Humidity
78%
Feels like
23°F
Dew Point
22°F
6 AM
27°F
10%
3mph
NW
Mostly Cloudy
Humidity
78%
Feels like
27°F
Dew Point
21°F
7 AM
28°F
20%
2mph
WNW
Mostly Cloudy
Humidity
75%
Feels like
28°F
Dew Point
21°F
7:08 AM
8 AM
29°F
20%
2mph
W
Mostly Cloudy
Humidity
76%
Feels like
29°F
Dew Point
22°F
9 AM
31°F
20%
2mph
WSW
Mostly Cloudy
Humidity
74%
Feels like
31°F
Dew Point
24°F
10 AM
33°F
20%
2mph
SW
Mostly Cloudy
Humidity
71%
Feels like
33°F
Dew Point
25°F
11 AM
35°F
20%
3mph
SSW
Cloudy
Humidity
68%
Feels like
32°F
Dew Point
26°F
12 PM
37°F
20%
4mph
S
Cloudy
Humidity
66%
Feels like
33°F
Dew Point
26°F
1 PM
38°F
20%
5mph
SSE
Cloudy
Humidity
63%
Feels like
34°F
Dew Point
26°F
2 PM
39°F
20%
5mph
SSE
Cloudy
Humidity
63%
Feels like
35°F
Dew Point
27°F
3 PM
39°F
20%
6mph
SE
Cloudy
Humidity
63%
Feels like
35°F
Dew Point
28°F
4 PM
39°F
30%
6mph
SE
30% Chance of Light Rain
Humidity
66%
Feels like
34°F
Dew Point
28°F
4:40 PM
5 PM
38°F
30%
6mph
SE
30% Chance of Light Rain
Humidity
69%
Feels like
33°F
Dew Point
28°F
6 PM
37°F
30%
6mph
SE
30% Chance of Light Rain
Humidity
75%
Feels like
32°F
Dew Point
30°F
7 PM
37°F
30%
7mph
SSE
30% Chance of Light Rain
Humidity
77%
Feels like
31°F
Dew Point
30°F
8 PM
37°F
30%
7mph
SSE
30% Chance of Light Rain
Humidity
78%
Feels like
32°F
Dew Point
31°F
9 PM
37°F
30%
7mph
SSE
30% Chance of Light Rain
Humidity
78%
Feels like
32°F
Dew Point
31°F
10 PM
37°F
20%
6mph
S
Mostly Cloudy
Humidity
80%
Feels like
32°F
Dew Point
31°F
11 PM
37°F
20%
6mph
S
Partly Cloudy
Humidity
82%
Feels like
32°F
Dew Point
33°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