Notice of NWS' New Version of Forecast
A new version of Forecast will launch March 7, 2017.
Click here to visit the new site for details.

A Major Severe Weather Outbreak is Forecast Today and/or Tonight

A severe thunderstorm and tornado outbreak is expected today across north Florida and south Georgia, with the significant severe threat also expected to extend southward into central Florida and northeastward into South Carolina this evening. A few long-track, strong tornadoes will be possible. In the west, more heavy rain and mountain snow will occur into the early part of this week. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Lt Rain

50°F

10°C

Humidity 87%
Wind Speed ESE 9 MPH
Barometer 29.69 in
Dewpoint 46°F (8°C)
Visibility 3.00 mi
Wind Chill46°F (8°C)
Last update 22 Jan 2:55 pm PST
Extended Forecast for

Half Moon Bay CA

Flash Flood Watch until January 23, 06:00pm
High Surf Advisory until January 24, 03:00am
Click here for hazard details and duration
Flash Flood Watch
High Surf Advisory
  •  
    Flash Flood Watch until January 23, 06:00pm
    High Surf Advisory until January 24, 03:00am

    NOW: Multiple
    hazards in effect

    Click HERE for Details

  • This
    Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Some of the storms could produce small hail.  High near 55. South wind around 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers

    High: 55 °F

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could produce small hail.  Low around 44. Breezy, with a west wind 16 to 22 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers and
    Breezy

    Low: 44 °F

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10am.  Cloudy, with a high near 54. West southwest wind 9 to 17 mph becoming south in the afternoon. Winds could gust as high as 21 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: 54 °F

  • Monday
    Night

    Monday Night: Showers likely, mainly before 4am.  Mostly cloudy, with a low around 42. Southeast wind 10 to 13 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers
    Likely

    Low: 42 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers before 10am.  Mostly sunny, with a high near 55. East northeast wind 13 to 20 mph, with gusts as high as 23 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers then
    Sunny

    High: 55 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 41.

    Mostly Clear

    Low: 41 °F

  • Wednesday

    Wednesday: Sunny, with a high near 55.

    Sunny

    High: 55 °F

  • Wednesday
    Night

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

    Mostly Clear

    Low: 43 °F

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could produce small hail. High near 55. South wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could produce small hail. Low around 44. Breezy, with a west wind 16 to 22 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 10am. Cloudy, with a high near 54. West southwest wind 9 to 17 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely, mainly before 4am. Mostly cloudy, with a low around 42. Southeast wind 10 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
A 30 percent chance of showers before 10am. Mostly sunny, with a high near 55. East northeast wind 13 to 20 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 58.
Click Map For Forecast
Point Forecast:
Half Moon Bay CA
 37.45°N 122.44°W (Elev. 43 ft)
2:09 pm PST Jan 22, 2017
3pm PST Jan 22, 2017-6pm PST Jan 29, 2017
 
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