Hourly Weather Forecast - Half Moon Bay, CA

12 AM
56°F
80%
23mph
SSE
80% Chance Rain Showers
Humidity
77%
Feels like
56°F
Dew Point
49°F
1 AM
56°F
90%
23mph
S
Rain Showers
Humidity
79%
Feels like
56°F
Dew Point
50°F
2 AM
56°F
90%
23mph
S
Light Rain
Humidity
79%
Feels like
56°F
Dew Point
50°F
3 AM
57°F
90%
23mph
S
Light Rain
Humidity
79%
Feels like
57°F
Dew Point
50°F
4 AM
57°F
90%
22mph
S
Rain
Humidity
78%
Feels like
57°F
Dew Point
50°F
5 AM
57°F
90%
22mph
S
Rain
Humidity
77%
Feels like
57°F
Dew Point
50°F
6 AM
56°F
90%
23mph
S
Rain
Humidity
77%
Feels like
56°F
Dew Point
49°F
7 AM
55°F
90%
22mph
S
Rain Showers
Humidity
79%
Feels like
55°F
Dew Point
49°F
7:22 AM
8 AM
54°F
80%
22mph
S
80% Chance Rain Showers
Humidity
80%
Feels like
54°F
Dew Point
48°F
9 AM
52°F
80%
22mph
S
80% Chance Rain Showers
Humidity
86%
Feels like
52°F
Dew Point
48°F
10 AM
52°F
90%
21mph
SSW
Rain Showers
Humidity
87%
Feels like
52°F
Dew Point
48°F
11 AM
52°F
90%
21mph
SSW
Rain Showers
Humidity
87%
Feels like
52°F
Dew Point
48°F
12 PM
52°F
100%
20mph
SSW
Rain Showers
Humidity
88%
Feels like
52°F
Dew Point
48°F
1 PM
51°F
100%
20mph
SSW
Rain Showers
Humidity
88%
Feels like
51°F
Dew Point
48°F
2 PM
51°F
100%
19mph
SSW
Rain Showers
Humidity
88%
Feels like
51°F
Dew Point
47°F
3 PM
50°F
100%
18mph
SSW
Rain Showers
Humidity
89%
Feels like
50°F
Dew Point
47°F
4 PM
49°F
100%
17mph
S
Light Rain
Humidity
89%
Feels like
43°F
Dew Point
46°F
4:57 PM
5 PM
50°F
100%
17mph
S
Light Rain
Humidity
86%
Feels like
44°F
Dew Point
46°F
6 PM
51°F
100%
17mph
S
Rain Showers
Humidity
85%
Feels like
51°F
Dew Point
46°F
7 PM
52°F
90%
16mph
S
Rain Showers
Humidity
82%
Feels like
52°F
Dew Point
47°F
8 PM
53°F
90%
16mph
SSW
Rain Showers
Humidity
78%
Feels like
53°F
Dew Point
46°F
9 PM
53°F
80%
15mph
SSW
80% Chance of Light Rain
Humidity
78%
Feels like
53°F
Dew Point
47°F
10 PM
54°F
80%
15mph
SSW
80% Chance of Light Rain
Humidity
77%
Feels like
54°F
Dew Point
47°F
11 PM
54°F
80%
15mph
SSW
80% Chance Rain Showers
Humidity
78%
Feels like
54°F
Dew Point
47°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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