Hourly Weather Forecast - San Marcos, CA

12 AM
54°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
54°F
Dew Point
54°F
1 AM
54°F
0%
2mph
E
Foggy
Humidity
100%
Feels like
54°F
Dew Point
54°F
2 AM
54°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
54°F
Dew Point
54°F
3 AM
53°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
53°F
Dew Point
53°F
4 AM
52°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
52°F
Dew Point
52°F
5 AM
51°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
51°F
Dew Point
51°F
6 AM
52°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
52°F
Dew Point
52°F
6:47 AM
7 AM
54°F
0%
2mph
ENE
Foggy
Humidity
100%
Feels like
54°F
Dew Point
54°F
8 AM
57°F
0%
2mph
NE
Foggy
Humidity
100%
Feels like
57°F
Dew Point
57°F
9 AM
61°F
0%
1mph
W
Mostly Sunny
Humidity
89%
Feels like
61°F
Dew Point
57°F
10 AM
63°F
0%
2mph
W
Mostly Sunny
Humidity
77%
Feels like
63°F
Dew Point
56°F
11 AM
65°F
0%
3mph
W
Mostly Sunny
Humidity
75%
Feels like
65°F
Dew Point
57°F
12 PM
66°F
0%
4mph
W
Mostly Sunny
Humidity
76%
Feels like
66°F
Dew Point
59°F
1 PM
66°F
0%
4mph
W
Mostly Sunny
Humidity
79%
Feels like
66°F
Dew Point
59°F
2 PM
65°F
0%
4mph
W
Mostly Sunny
Humidity
82%
Feels like
65°F
Dew Point
59°F
3 PM
63°F
0%
4mph
W
Mostly Sunny
Humidity
84%
Feels like
63°F
Dew Point
58°F
4 PM
61°F
0%
3mph
W
Mostly Sunny
Humidity
87%
Feels like
61°F
Dew Point
57°F
4:45 PM
5 PM
59°F
0%
3mph
WNW
Mostly Clear
Humidity
88%
Feels like
59°F
Dew Point
55°F
6 PM
58°F
0%
2mph
WNW
Mostly Clear
Humidity
89%
Feels like
58°F
Dew Point
54°F
7 PM
57°F
0%
2mph
NW
Mostly Clear
Humidity
89%
Feels like
57°F
Dew Point
54°F
8 PM
56°F
0%
2mph
N
Partly Cloudy
Humidity
89%
Feels like
56°F
Dew Point
53°F
9 PM
56°F
0%
2mph
NNE
Cloudy
Humidity
89%
Feels like
56°F
Dew Point
53°F
10 PM
56°F
0%
2mph
NNE
Cloudy
Humidity
90%
Feels like
56°F
Dew Point
53°F
11 PM
56°F
0%
2mph
NNE
Cloudy
Humidity
92%
Feels like
56°F
Dew Point
53°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide