Hourly Weather Forecast - San Marcos, CA

12 AM
54°F
0%
2mph
E
Mostly Clear
Humidity
86%
Feels like
54°F
Dew Point
50°F
1 AM
53°F
0%
2mph
E
Mostly Clear
Humidity
88%
Feels like
53°F
Dew Point
49°F
2 AM
52°F
0%
3mph
E
Mostly Clear
Humidity
88%
Feels like
52°F
Dew Point
49°F
3 AM
51°F
0%
4mph
E
Mostly Clear
Humidity
88%
Feels like
51°F
Dew Point
48°F
4 AM
50°F
0%
4mph
E
Clear
Humidity
87%
Feels like
50°F
Dew Point
47°F
5 AM
51°F
0%
4mph
ENE
Clear
Humidity
85%
Feels like
51°F
Dew Point
46°F
6 AM
51°F
0%
4mph
ENE
Clear
Humidity
81%
Feels like
51°F
Dew Point
46°F
6:46 AM
7 AM
54°F
0%
4mph
ENE
Sunny
Humidity
76%
Feels like
54°F
Dew Point
47°F
8 AM
59°F
0%
3mph
ENE
Sunny
Humidity
70%
Feels like
59°F
Dew Point
49°F
9 AM
64°F
0%
2mph
NE
Sunny
Humidity
62%
Feels like
64°F
Dew Point
51°F
10 AM
68°F
0%
2mph
N
Sunny
Humidity
56%
Feels like
68°F
Dew Point
52°F
11 AM
72°F
0%
2mph
NW
Sunny
Humidity
52%
Feels like
72°F
Dew Point
53°F
12 PM
74°F
0%
3mph
WNW
Mostly Sunny
Humidity
51%
Feels like
74°F
Dew Point
55°F
1 PM
74°F
0%
4mph
W
Mostly Sunny
Humidity
52%
Feels like
74°F
Dew Point
56°F
2 PM
73°F
0%
3mph
W
Mostly Sunny
Humidity
56%
Feels like
73°F
Dew Point
56°F
3 PM
71°F
0%
3mph
W
Sunny
Humidity
60%
Feels like
71°F
Dew Point
56°F
4 PM
68°F
0%
2mph
W
Sunny
Humidity
66%
Feels like
68°F
Dew Point
56°F
4:44 PM
5 PM
65°F
0%
2mph
W
Mostly Clear
Humidity
69%
Feels like
65°F
Dew Point
55°F
6 PM
62°F
0%
1mph
SE
Mostly Clear
Humidity
72%
Feels like
62°F
Dew Point
53°F
7 PM
61°F
0%
1mph
ESE
Mostly Clear
Humidity
73%
Feels like
61°F
Dew Point
53°F
8 PM
60°F
0%
2mph
ESE
Mostly Clear
Humidity
73%
Feels like
60°F
Dew Point
51°F
9 PM
59°F
0%
2mph
ESE
Mostly Clear
Humidity
72%
Feels like
59°F
Dew Point
50°F
10 PM
58°F
0%
2mph
ESE
Clear
Humidity
70%
Feels like
58°F
Dew Point
49°F
11 PM
58°F
0%
2mph
E
Clear
Humidity
70%
Feels like
58°F
Dew Point
48°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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