Hourly Weather Forecast - Arnold, MO

9 AM
10°F
0%
9mph
NNW
Mostly Sunny
Humidity
64%
Feels like
-3°F
Dew Point
0°F
10 AM
11°F
0%
8mph
NNW
Mostly Sunny
Humidity
60%
Feels like
0°F
Dew Point
0°F
11 AM
13°F
0%
7mph
NNW
Mostly Sunny
Humidity
57%
Feels like
2°F
Dew Point
1°F
12 PM
14°F
0%
6mph
NNW
Sunny
Humidity
55%
Feels like
4°F
Dew Point
1°F
1 PM
15°F
0%
6mph
NNW
Sunny
Humidity
53%
Feels like
6°F
Dew Point
1°F
2 PM
15°F
0%
6mph
NNW
Sunny
Humidity
52%
Feels like
6°F
Dew Point
0°F
3 PM
15°F
0%
5mph
NNW
Sunny
Humidity
51%
Feels like
6°F
Dew Point
0°F
4 PM
14°F
0%
4mph
N
Sunny
Humidity
51%
Feels like
8°F
Dew Point
0°F
4:41 PM
5 PM
14°F
0%
2mph
N
Clear
Humidity
52%
Feels like
14°F
Dew Point
0°F
6 PM
13°F
0%
1mph
NE
Clear
Humidity
54%
Feels like
13°F
Dew Point
0°F
7 PM
12°F
0%
2mph
E
Clear
Humidity
56%
Feels like
12°F
Dew Point
0°F
8 PM
11°F
0%
2mph
ESE
Clear
Humidity
59%
Feels like
11°F
Dew Point
0°F
9 PM
11°F
0%
3mph
ESE
Clear
Humidity
61%
Feels like
11°F
Dew Point
0°F
10 PM
10°F
0%
3mph
SE
Clear
Humidity
62%
Feels like
4°F
Dew Point
0°F
11 PM
10°F
0%
4mph
SSE
Clear
Humidity
62%
Feels like
3°F
Dew Point
0°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

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

Cold Air Damming - Cause And Effects

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