Hourly Weather Forecast - San Marcos, CA

12 AM
53°F
0%
2mph
ESE
Hazy
Humidity
95%
Feels like
53°F
Dew Point
52°F
1 AM
53°F
0%
2mph
ESE
Hazy
Humidity
97%
Feels like
53°F
Dew Point
52°F
2 AM
52°F
0%
2mph
ESE
Foggy
Humidity
99%
Feels like
52°F
Dew Point
52°F
3 AM
52°F
0%
2mph
ESE
Foggy
Humidity
99%
Feels like
52°F
Dew Point
52°F
4 AM
51°F
0%
2mph
ESE
Foggy
Humidity
99%
Feels like
51°F
Dew Point
51°F
5 AM
51°F
0%
2mph
ESE
Hazy
Humidity
98%
Feels like
51°F
Dew Point
51°F
6 AM
52°F
0%
2mph
ESE
Hazy
Humidity
95%
Feels like
52°F
Dew Point
50°F
6:47 AM
7 AM
54°F
0%
2mph
ESE
Mostly Sunny
Humidity
90%
Feels like
54°F
Dew Point
51°F
8 AM
57°F
0%
2mph
ESE
Sunny
Humidity
86%
Feels like
57°F
Dew Point
53°F
9 AM
60°F
0%
2mph
SSE
Sunny
Humidity
81%
Feels like
60°F
Dew Point
54°F
10 AM
63°F
0%
2mph
S
Sunny
Humidity
74%
Feels like
63°F
Dew Point
55°F
11 AM
65°F
0%
3mph
SW
Sunny
Humidity
71%
Feels like
65°F
Dew Point
55°F
12 PM
66°F
0%
4mph
WSW
Mostly Sunny
Humidity
71%
Feels like
66°F
Dew Point
56°F
1 PM
66°F
0%
4mph
WSW
Mostly Sunny
Humidity
73%
Feels like
66°F
Dew Point
57°F
2 PM
64°F
0%
4mph
WSW
Mostly Sunny
Humidity
76%
Feels like
64°F
Dew Point
57°F
3 PM
62°F
0%
4mph
WSW
Mostly Sunny
Humidity
78%
Feels like
62°F
Dew Point
55°F
4 PM
60°F
0%
3mph
WSW
Mostly Sunny
Humidity
82%
Feels like
60°F
Dew Point
54°F
4:45 PM
5 PM
58°F
0%
3mph
SW
Partly Cloudy
Humidity
86%
Feels like
58°F
Dew Point
54°F
6 PM
56°F
0%
2mph
SW
Cloudy
Humidity
89%
Feels like
56°F
Dew Point
53°F
7 PM
56°F
0%
2mph
S
Cloudy
Humidity
92%
Feels like
56°F
Dew Point
53°F
8 PM
55°F
0%
1mph
SE
Cloudy
Humidity
94%
Feels like
55°F
Dew Point
54°F
9 PM
55°F
0%
1mph
E
Cloudy
Humidity
96%
Feels like
55°F
Dew Point
54°F
10 PM
55°F
0%
1mph
ENE
Cloudy
Humidity
98%
Feels like
55°F
Dew Point
54°F
11 PM
55°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
55°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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