Hourly Weather Forecast - Arnold, MO

12 AM
48°F
30%
3mph
E
30% Chance Rain Showers
Humidity
100%
Feels like
48°F
Dew Point
48°F
1 AM
47°F
30%
3mph
E
30% Chance Rain Showers
Humidity
100%
Feels like
47°F
Dew Point
47°F
2 AM
47°F
0%
3mph
ESE
Foggy
Humidity
100%
Feels like
46°F
Dew Point
47°F
3 AM
48°F
0%
3mph
ESE
Foggy
Humidity
100%
Feels like
47°F
Dew Point
48°F
4 AM
48°F
0%
4mph
SE
Foggy
Humidity
100%
Feels like
47°F
Dew Point
48°F
5 AM
49°F
10%
4mph
SE
Foggy
Humidity
100%
Feels like
47°F
Dew Point
49°F
6 AM
50°F
10%
4mph
SE
Foggy
Humidity
100%
Feels like
48°F
Dew Point
50°F
7 AM
51°F
10%
5mph
SE
Foggy
Humidity
100%
Feels like
51°F
Dew Point
51°F
7:16 AM
8 AM
53°F
10%
6mph
SSE
Foggy
Humidity
100%
Feels like
53°F
Dew Point
53°F
9 AM
56°F
10%
6mph
SSE
Foggy
Humidity
100%
Feels like
56°F
Dew Point
56°F
10 AM
58°F
10%
7mph
SSE
Foggy
Humidity
100%
Feels like
58°F
Dew Point
58°F
11 AM
60°F
10%
7mph
S
Foggy
Humidity
100%
Feels like
60°F
Dew Point
60°F
12 PM
62°F
10%
8mph
S
Foggy
Humidity
100%
Feels like
62°F
Dew Point
62°F
1 PM
63°F
10%
9mph
S
Foggy
Humidity
100%
Feels like
63°F
Dew Point
63°F
2 PM
64°F
0%
9mph
SSW
Foggy
Humidity
100%
Feels like
64°F
Dew Point
64°F
3 PM
64°F
0%
9mph
SSW
Foggy
Humidity
100%
Feels like
64°F
Dew Point
64°F
4 PM
64°F
0%
8mph
SSW
Foggy
Humidity
100%
Feels like
64°F
Dew Point
64°F
4:45 PM
5 PM
64°F
0%
8mph
S
Foggy
Humidity
100%
Feels like
64°F
Dew Point
64°F
6 PM
63°F
0%
7mph
S
Foggy
Humidity
100%
Feels like
63°F
Dew Point
63°F
7 PM
63°F
0%
7mph
SSW
Foggy
Humidity
100%
Feels like
63°F
Dew Point
63°F
8 PM
62°F
0%
8mph
SSW
Foggy
Humidity
100%
Feels like
62°F
Dew Point
62°F
9 PM
62°F
0%
8mph
SSW
Foggy
Humidity
100%
Feels like
62°F
Dew Point
62°F
10 PM
62°F
0%
8mph
SSW
Foggy
Humidity
99%
Feels like
62°F
Dew Point
62°F
11 PM
62°F
0%
8mph
SW
Mostly Cloudy
Humidity
98%
Feels like
62°F
Dew Point
61°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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