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

Snow and Ice Continue in the Northeast; Rain and Mountain Snow in the West

Significant winter impacts shift into the Northeast on Sunday. Heavy snow up to 2 feet will be possible across interior Northeastern areas. Southern New England may see ice accumulations up to a quarter of an inch. Strong gusty winds and bitter cold will follow the cold front passage. In the west, heavy mountain snow will impact the California, Inter-Mountain West, and Rocky mountains. Read More >

Hazardous Weather Conditions

Current conditions at

Half Moon Bay Airport (KHAF)

Lat: 37.5136°NLon: 122.4996°WElev: 65ft.

Fog

55°F

13°C

Humidity 100%
Wind Speed S 6 MPH
Barometer 30.17 in
Dewpoint 55°F (13°C)
Visibility 1.50 mi
Last update 20 Jan 2:55 am PST
Extended Forecast for

Half Moon Bay CA

Coastal Flood Advisory January 20, 08:00am until January 20, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory

  • Overnight

    Overnight: A slight chance of showers before 4am, then a chance of rain after 4am. Cloudy, with a low around 52. South wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Chance Rain

    Low: 52 °F

  • Sunday

    Sunday: Rain likely, mainly between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 59. South southwest wind 15 to 21 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 59 °F

  • Sunday
    Night

    Sunday Night: Showers likely and possibly a thunderstorm before 10pm, then a chance of showers. Some of the storms could produce small hail. Mostly cloudy, with a low around 46. Breezy, with a west northwest wind 26 to 28 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Breezy.
    Showers
    Likely then
    Chance
    Showers

    Low: 46 °F

  • M.L.King
    Day

    M.L.King Day: Mostly sunny, with a high near 58. Northwest wind around 18 mph, with gusts as high as 22 mph.

    Mostly Sunny

    High: 58 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 42. Northwest wind 14 to 16 mph becoming north northeast in the evening.

    Mostly Clear

    Low: 42 °F

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    Sunny

    High: 59 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 43.

    Mostly Clear

    Low: 43 °F

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    Sunny

    High: 61 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 45.

    Mostly Clear

    Low: 45 °F

Detailed Forecast

Overnight
A slight chance of showers before 4am, then a chance of rain after 4am. Cloudy, with a low around 52. South wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely, mainly between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 59. South southwest wind 15 to 21 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers. Some of the storms could produce small hail. Mostly cloudy, with a low around 46. Breezy, with a west northwest wind 26 to 28 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
M.L.King Day
Mostly sunny, with a high near 58. Northwest wind around 18 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 42. Northwest wind 14 to 16 mph becoming north northeast in the evening.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 65.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Half Moon Bay CA
 37.48°N 122.42°W (Elev. 397 ft)
Last Update:
2:01 am PST Jan 20, 2019
Forecast Valid:
3am PST Jan 20, 2019-6pm PST Jan 26, 2019
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation