Hourly Weather Forecast - San Marcos, TX

12 AM
47°F
0%
7mph
S
Mostly Cloudy
Humidity
47%
Feels like
44°F
Dew Point
28°F
1 AM
47°F
0%
6mph
SSW
Mostly Cloudy
Humidity
49%
Feels like
44°F
Dew Point
29°F
2 AM
47°F
0%
6mph
SSW
Mostly Cloudy
Humidity
51%
Feels like
44°F
Dew Point
30°F
3 AM
47°F
0%
6mph
SSW
Mostly Cloudy
Humidity
55%
Feels like
44°F
Dew Point
32°F
4 AM
47°F
0%
5mph
SSW
Cloudy
Humidity
57%
Feels like
45°F
Dew Point
33°F
5 AM
48°F
0%
5mph
SSW
Partly Cloudy
Humidity
58%
Feels like
46°F
Dew Point
34°F
6 AM
49°F
0%
5mph
S
Mostly Cloudy
Humidity
60%
Feels like
47°F
Dew Point
36°F
7 AM
50°F
0%
5mph
S
Mostly Cloudy
Humidity
61%
Feels like
50°F
Dew Point
38°F
7:20 AM
8 AM
52°F
0%
5mph
S
Cloudy
Humidity
62%
Feels like
52°F
Dew Point
39°F
9 AM
54°F
0%
6mph
S
Cloudy
Humidity
61%
Feels like
54°F
Dew Point
41°F
10 AM
56°F
0%
7mph
S
Mostly Cloudy
Humidity
61%
Feels like
56°F
Dew Point
43°F
11 AM
58°F
0%
8mph
S
Cloudy
Humidity
61%
Feels like
58°F
Dew Point
44°F
12 PM
59°F
0%
8mph
S
Cloudy
Humidity
61%
Feels like
59°F
Dew Point
46°F
1 PM
60°F
0%
8mph
S
Cloudy
Humidity
62%
Feels like
60°F
Dew Point
47°F
2 PM
60°F
0%
8mph
S
Cloudy
Humidity
65%
Feels like
60°F
Dew Point
48°F
3 PM
58°F
0%
8mph
S
Cloudy
Humidity
69%
Feels like
58°F
Dew Point
49°F
4 PM
57°F
0%
8mph
S
Cloudy
Humidity
75%
Feels like
57°F
Dew Point
49°F
5 PM
56°F
0%
7mph
S
Cloudy
Humidity
80%
Feels like
56°F
Dew Point
50°F
5:34 PM
6 PM
55°F
0%
6mph
S
Cloudy
Humidity
84%
Feels like
55°F
Dew Point
50°F
7 PM
55°F
0%
6mph
S
Cloudy
Humidity
85%
Feels like
55°F
Dew Point
51°F
8 PM
55°F
10%
5mph
S
Cloudy
Humidity
88%
Feels like
55°F
Dew Point
51°F
9 PM
55°F
10%
5mph
S
Cloudy
Humidity
90%
Feels like
55°F
Dew Point
52°F
10 PM
55°F
20%
5mph
S
Mostly Cloudy
Humidity
91%
Feels like
55°F
Dew Point
53°F
11 PM
56°F
20%
5mph
S
Mostly Cloudy
Humidity
92%
Feels like
56°F
Dew Point
53°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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