Hourly Weather Forecast - Arnold, MO

12 AM
35°F
0%
6mph
NNW
Partly Cloudy
Humidity
75%
Feels like
30°F
Dew Point
28°F
1 AM
33°F
0%
5mph
NNW
Partly Cloudy
Humidity
77%
Feels like
28°F
Dew Point
27°F
2 AM
31°F
0%
5mph
NNW
Partly Cloudy
Humidity
81%
Feels like
26°F
Dew Point
26°F
3 AM
30°F
0%
4mph
NNW
Partly Cloudy
Humidity
85%
Feels like
25°F
Dew Point
26°F
4 AM
29°F
0%
4mph
NNW
Partly Cloudy
Humidity
89%
Feels like
24°F
Dew Point
26°F
5 AM
28°F
0%
4mph
NNW
Partly Cloudy
Humidity
92%
Feels like
23°F
Dew Point
26°F
6 AM
28°F
0%
4mph
N
Partly Cloudy
Humidity
92%
Feels like
23°F
Dew Point
26°F
7 AM
29°F
0%
4mph
N
Mostly Clear
Humidity
88%
Feels like
25°F
Dew Point
26°F
7:15 AM
8 AM
31°F
0%
3mph
N
Mostly Sunny
Humidity
84%
Feels like
28°F
Dew Point
27°F
9 AM
34°F
0%
3mph
N
Mostly Sunny
Humidity
79%
Feels like
34°F
Dew Point
28°F
10 AM
37°F
0%
3mph
NNE
Mostly Sunny
Humidity
68%
Feels like
37°F
Dew Point
27°F
11 AM
39°F
0%
3mph
NNE
Mostly Sunny
Humidity
59%
Feels like
37°F
Dew Point
26°F
12 PM
41°F
0%
4mph
NE
Mostly Sunny
Humidity
50%
Feels like
39°F
Dew Point
24°F
1 PM
43°F
0%
4mph
NE
Mostly Sunny
Humidity
48%
Feels like
41°F
Dew Point
24°F
2 PM
43°F
0%
4mph
ENE
Mostly Sunny
Humidity
47%
Feels like
41°F
Dew Point
24°F
3 PM
42°F
0%
4mph
ENE
Mostly Sunny
Humidity
48%
Feels like
39°F
Dew Point
24°F
4 PM
40°F
0%
4mph
E
Mostly Sunny
Humidity
52%
Feels like
38°F
Dew Point
24°F
4:44 PM
5 PM
38°F
0%
4mph
E
Mostly Clear
Humidity
55%
Feels like
35°F
Dew Point
24°F
6 PM
37°F
0%
3mph
E
Mostly Clear
Humidity
62%
Feels like
34°F
Dew Point
25°F
7 PM
35°F
0%
4mph
ESE
Mostly Clear
Humidity
68%
Feels like
32°F
Dew Point
26°F
8 PM
35°F
0%
4mph
ESE
Partly Cloudy
Humidity
70%
Feels like
32°F
Dew Point
26°F
9 PM
35°F
10%
4mph
ESE
Partly Cloudy
Humidity
70%
Feels like
31°F
Dew Point
26°F
10 PM
35°F
10%
4mph
ESE
Partly Cloudy
Humidity
71%
Feels like
31°F
Dew Point
26°F
11 PM
34°F
10%
4mph
ESE
Partly Cloudy
Humidity
72%
Feels like
30°F
Dew Point
26°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's 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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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