Hourly Weather Forecast - San Marcos, CA

12 AM
57°F
0%
2mph
E
Clear
Humidity
70%
Feels like
57°F
Dew Point
47°F
1 AM
56°F
0%
2mph
E
Clear
Humidity
71%
Feels like
56°F
Dew Point
47°F
2 AM
56°F
0%
2mph
E
Clear
Humidity
72%
Feels like
56°F
Dew Point
47°F
3 AM
55°F
0%
2mph
E
Clear
Humidity
74%
Feels like
55°F
Dew Point
47°F
4 AM
55°F
0%
2mph
E
Clear
Humidity
71%
Feels like
55°F
Dew Point
45°F
5 AM
54°F
0%
2mph
E
Clear
Humidity
72%
Feels like
54°F
Dew Point
46°F
6 AM
55°F
0%
3mph
E
Clear
Humidity
71%
Feels like
55°F
Dew Point
45°F
6:46 AM
7 AM
56°F
0%
2mph
E
Sunny
Humidity
70%
Feels like
56°F
Dew Point
47°F
8 AM
60°F
0%
2mph
E
Sunny
Humidity
69%
Feels like
60°F
Dew Point
50°F
9 AM
65°F
0%
2mph
SE
Sunny
Humidity
62%
Feels like
65°F
Dew Point
51°F
10 AM
68°F
0%
2mph
SW
Sunny
Humidity
57%
Feels like
68°F
Dew Point
53°F
11 AM
71°F
0%
2mph
SW
Sunny
Humidity
54%
Feels like
71°F
Dew Point
54°F
12 PM
73°F
0%
3mph
WSW
Sunny
Humidity
53%
Feels like
73°F
Dew Point
55°F
1 PM
73°F
0%
4mph
WSW
Sunny
Humidity
54%
Feels like
73°F
Dew Point
55°F
2 PM
71°F
0%
4mph
WSW
Sunny
Humidity
57%
Feels like
71°F
Dew Point
55°F
3 PM
68°F
0%
4mph
WSW
Sunny
Humidity
61%
Feels like
68°F
Dew Point
55°F
4 PM
65°F
0%
3mph
WSW
Sunny
Humidity
67%
Feels like
65°F
Dew Point
54°F
4:44 PM
5 PM
62°F
0%
2mph
SW
Clear
Humidity
73%
Feels like
62°F
Dew Point
53°F
6 PM
59°F
0%
2mph
SSW
Clear
Humidity
79%
Feels like
59°F
Dew Point
53°F
7 PM
58°F
0%
2mph
SSE
Mostly Clear
Humidity
84%
Feels like
58°F
Dew Point
53°F
8 PM
56°F
0%
2mph
SE
Mostly Clear
Humidity
87%
Feels like
56°F
Dew Point
53°F
9 PM
56°F
0%
2mph
SE
Cloudy
Humidity
89%
Feels like
56°F
Dew Point
52°F
10 PM
55°F
0%
2mph
SE
Cloudy
Humidity
92%
Feels like
55°F
Dew Point
52°F
11 PM
54°F
0%
2mph
SE
Cloudy
Humidity
95%
Feels like
54°F
Dew Point
52°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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