Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Mist

54°F

12°C

Humidity 93%
Wind Speed NNW 8 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 52°F (11°C)
Visibility 5.00 mi
Last update 07 Dec 05:35 PM PST
Extended Forecast for

4 Miles E Half Moon Bay CA

  • Tonight

    Tonight: Mostly clear, with a low around 45. East northeast wind around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. North northeast wind around 7 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. North wind around 6 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. North wind 5 to 7 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. North northeast wind around 6 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 45. East northeast wind around 5 mph.
Monday
Sunny, with a high near 58. North northeast wind around 7 mph.
Monday Night
Mostly clear, with a low around 47. North wind around 6 mph.
Tuesday
Sunny, with a high near 58. North wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 48. North northeast wind around 6 mph.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 59.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Half Moon Bay CA
 37.46°N 122.36°W (Elev. 1145 ft)
5:02 pm PST Dec 7, 2025
5pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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