National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. Read More >

Hazardous Weather Conditions

Current conditions at

Half Moon Bay Airport (KHAF)

Lat: 37.5136°NLon: 122.4996°WElev: 65.0ft.

Clear

70°F

21°C

Humidity 46%
Wind Speed WNW 5 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 05 Feb 02:55 PM PST
Extended Forecast for

Half Moon Bay CA

High Surf Advisory February 6, 04:00am until February 7, 09:00pm
Click here for hazard details and duration
High Surf Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 67. Light and variable wind becoming west southwest 5 to 7 mph in the morning.

    High: 67 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. Light west northwest wind.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 8 mph in the morning.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49. Northwest wind 3 to 6 mph.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain

  • Monday

    Monday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A slight chance of rain after 10pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. Calm wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 67. Light and variable wind becoming west southwest 5 to 7 mph in the morning.
Friday Night
Partly cloudy, with a low around 48. Light west northwest wind.
Saturday
Mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 8 mph in the morning.
Saturday Night
Partly cloudy, with a low around 49. Northwest wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 65.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Monday
Mostly cloudy, with a high near 62.
Monday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 60.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Partly sunny, with a high near 59.
Wednesday Night
A chance of rain. Partly cloudy, with a low around 44.
Thursday
A slight chance of rain. Sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.48°N 122.42°W (Elev. 397 ft)
Last Update:
12:26 pm PST Feb 5, 2026
Forecast Valid:
3pm PST Feb 5, 2026-6pm PST Feb 12, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation