Hourly Weather Forecast - Half Moon Bay, CA

12 AM
53°F
80%
14mph
SSW
80% Chance Rain Showers
Humidity
79%
Feels like
53°F
Dew Point
47°F
1 AM
53°F
80%
14mph
SSW
80% Chance Rain Showers
Humidity
79%
Feels like
53°F
Dew Point
46°F
2 AM
52°F
90%
13mph
SSW
Rain Showers
Humidity
79%
Feels like
52°F
Dew Point
46°F
3 AM
51°F
90%
13mph
SSW
Rain Showers
Humidity
80%
Feels like
51°F
Dew Point
46°F
4 AM
51°F
80%
13mph
SSW
80% Chance Rain Showers
Humidity
79%
Feels like
51°F
Dew Point
45°F
5 AM
54°F
70%
13mph
SSW
70% Chance Rain Showers
Humidity
81%
Feels like
54°F
Dew Point
49°F
6 AM
54°F
70%
13mph
SSW
70% Chance Rain Showers
Humidity
81%
Feels like
54°F
Dew Point
48°F
7 AM
54°F
70%
13mph
SSW
70% Chance Rain Showers
Humidity
83%
Feels like
54°F
Dew Point
49°F
7:22 AM
8 AM
53°F
70%
13mph
S
70% Chance Rain Showers
Humidity
84%
Feels like
53°F
Dew Point
49°F
9 AM
52°F
70%
13mph
S
70% Chance Rain Showers
Humidity
88%
Feels like
52°F
Dew Point
49°F
10 AM
53°F
70%
13mph
S
70% Chance Rain Showers
Humidity
89%
Feels like
53°F
Dew Point
49°F
11 AM
52°F
70%
12mph
SSW
70% Chance Rain Showers
Humidity
90%
Feels like
52°F
Dew Point
49°F
12 PM
51°F
70%
11mph
SSW
70% Chance Rain Showers
Humidity
89%
Feels like
51°F
Dew Point
48°F
1 PM
51°F
80%
9mph
SSW
80% Chance Rain Showers
Humidity
87%
Feels like
51°F
Dew Point
48°F
2 PM
51°F
80%
8mph
SSW
80% Chance Rain Showers
Humidity
88%
Feels like
51°F
Dew Point
47°F
3 PM
50°F
80%
7mph
SSW
80% Chance Rain Showers
Humidity
89%
Feels like
47°F
Dew Point
47°F
4 PM
49°F
70%
6mph
SSW
70% Chance Rain Showers
Humidity
90%
Feels like
46°F
Dew Point
46°F
4:57 PM
5 PM
49°F
60%
5mph
SSW
60% Chance Rain Showers
Humidity
88%
Feels like
47°F
Dew Point
45°F
6 PM
50°F
50%
4mph
SSW
50% Chance Rain Showers
Humidity
85%
Feels like
48°F
Dew Point
45°F
7 PM
50°F
60%
4mph
SSW
60% Chance Rain Showers
Humidity
83%
Feels like
48°F
Dew Point
45°F
8 PM
51°F
60%
4mph
SSW
60% Chance Rain Showers
Humidity
78%
Feels like
51°F
Dew Point
44°F
9 PM
51°F
60%
4mph
SW
60% Chance Rain Showers
Humidity
79%
Feels like
51°F
Dew Point
45°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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