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

Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Mist

59°F

15°C

Humidity 93%
Wind Speed S 3 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 09 Nov 07:55 PM PST
Extended Forecast for

Half Moon Bay CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. East northeast wind 5 to 10 mph becoming light and variable in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 73. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 73 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 55. North wind 5 to 8 mph becoming calm after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Mostly cloudy, with a high near 69. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 69 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 53. Calm wind becoming south around 6 mph in the evening.

    Low: 53 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after 10am. Cloudy, with a high near 63. Breezy. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Rain. Low around 52. Chance of precipitation is 100%.

    Low: 52 °F

    Rain

  • Thursday

    Thursday: Rain. Mostly cloudy, with a high near 59.

    High: 59 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. East northeast wind 5 to 10 mph becoming light and variable in the evening.
Monday
Partly sunny, with a high near 73. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 55. North wind 5 to 8 mph becoming calm after midnight.
Veterans Day
Mostly cloudy, with a high near 69. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 53. Calm wind becoming south around 6 mph in the evening.
Wednesday
A 40 percent chance of rain after 10am. Cloudy, with a high near 63. Breezy. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain. Low around 52. Chance of precipitation is 100%.
Thursday
Rain. Mostly cloudy, with a high near 59.
Thursday Night
Rain likely. Mostly cloudy, with a low around 48.
Friday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 58.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48.
Saturday
A slight chance of rain. Mostly sunny, with a high near 60.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 48.
Sunday
A chance of rain. Mostly cloudy, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.47°N 122.45°W (Elev. 7 ft)
Last Update:
3:04 pm PST Nov 9, 2025
Forecast Valid:
8pm PST Nov 9, 2025-6pm PST Nov 16, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation