Hourly Weather Forecast - Mercedes, San Luis, AR

12 AM
66°F
20%
4mph
ESE
Mostly Cloudy
Humidity
86%
Feels like
66°F
Dew Point
61°F
1 AM
64°F
10%
4mph
SE
Mostly Cloudy
Humidity
88%
Feels like
64°F
Dew Point
60°F
2 AM
62°F
10%
3mph
SE
Mostly Cloudy
Humidity
91%
Feels like
62°F
Dew Point
60°F
3 AM
61°F
20%
3mph
S
Partly Cloudy
Humidity
95%
Feels like
61°F
Dew Point
60°F
4 AM
60°F
10%
3mph
SW
Partly Cloudy
Humidity
97%
Feels like
60°F
Dew Point
59°F
5 AM
60°F
10%
2mph
WSW
Partly Cloudy
Humidity
95%
Feels like
60°F
Dew Point
59°F
6 AM
61°F
20%
2mph
WSW
Partly Cloudy
Humidity
94%
Feels like
61°F
Dew Point
59°F
6:08 AM
7 AM
64°F
20%
3mph
SSW
Partly Cloudy
Humidity
89%
Feels like
64°F
Dew Point
60°F
8 AM
68°F
30%
4mph
SSE
30% Chance Rain Showers
Humidity
76%
Feels like
68°F
Dew Point
60°F
9 AM
72°F
30%
6mph
SSE
30% Chance Rain Showers
Humidity
66%
Feels like
72°F
Dew Point
60°F
10 AM
76°F
10%
6mph
SE
Sunny
Humidity
55%
Feels like
76°F
Dew Point
58°F
11 AM
78°F
10%
8mph
ESE
Sunny
Humidity
48%
Feels like
78°F
Dew Point
57°F
12 PM
81°F
10%
8mph
ESE
Sunny
Humidity
43%
Feels like
81°F
Dew Point
56°F
1 PM
83°F
10%
8mph
E
Sunny
Humidity
40%
Feels like
82°F
Dew Point
56°F
2 PM
84°F
10%
8mph
ENE
Sunny
Humidity
37%
Feels like
83°F
Dew Point
55°F
3 PM
86°F
30%
8mph
ENE
30% Chance Rain Showers
Humidity
35%
Feels like
84°F
Dew Point
55°F
4 PM
86°F
30%
8mph
ENE
30% Chance Rain Showers
Humidity
34%
Feels like
85°F
Dew Point
55°F
5 PM
87°F
30%
8mph
ENE
30% Chance Rain Showers
Humidity
33%
Feels like
85°F
Dew Point
54°F
6 PM
86°F
30%
8mph
ENE
30% Chance Rain Showers
Humidity
33%
Feels like
84°F
Dew Point
54°F
7 PM
84°F
30%
8mph
ENE
30% Chance Rain Showers
Humidity
35%
Feels like
83°F
Dew Point
54°F
8 PM
81°F
30%
8mph
ENE
30% Chance Rain Showers
Humidity
41%
Feels like
81°F
Dew Point
55°F
8:32 PM
9 PM
77°F
20%
8mph
ENE
Clear
Humidity
49%
Feels like
77°F
Dew Point
57°F
10 PM
73°F
20%
7mph
ENE
Clear
Humidity
54%
Feels like
73°F
Dew Point
55°F
11 PM
71°F
20%
7mph
NE
Clear
Humidity
57%
Feels like
71°F
Dew Point
55°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

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

Thursday's Weather Outlook

Thursday'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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