Hourly Weather Forecast - Arnold, MO

11 AM
26°F
0%
9mph
SSW
Sunny
Humidity
54%
Feels like
17°F
Dew Point
12°F
12 PM
30°F
0%
9mph
SSW
Sunny
Humidity
49%
Feels like
22°F
Dew Point
13°F
1 PM
33°F
0%
9mph
SSW
Sunny
Humidity
46%
Feels like
26°F
Dew Point
15°F
2 PM
35°F
0%
9mph
SW
Sunny
Humidity
46%
Feels like
28°F
Dew Point
16°F
3 PM
36°F
0%
8mph
SW
Sunny
Humidity
46%
Feels like
29°F
Dew Point
17°F
4 PM
35°F
0%
7mph
SSW
Sunny
Humidity
49%
Feels like
29°F
Dew Point
18°F
4:41 PM
5 PM
33°F
0%
5mph
SSW
Clear
Humidity
53%
Feels like
28°F
Dew Point
18°F
6 PM
31°F
0%
5mph
SSW
Clear
Humidity
54%
Feels like
27°F
Dew Point
17°F
7 PM
30°F
0%
4mph
SSW
Clear
Humidity
59%
Feels like
25°F
Dew Point
17°F
8 PM
29°F
0%
5mph
SSW
Partly Cloudy
Humidity
62%
Feels like
24°F
Dew Point
18°F
9 PM
28°F
0%
5mph
SW
Partly Cloudy
Humidity
65%
Feels like
23°F
Dew Point
19°F
10 PM
28°F
0%
4mph
SW
Partly Cloudy
Humidity
68%
Feels like
23°F
Dew Point
19°F
11 PM
29°F
0%
4mph
SW
Partly Cloudy
Humidity
71%
Feels like
24°F
Dew Point
20°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday'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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