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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Clear

55°F

13°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.38 in (1028.79 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 28 Jan 09:15 AM PST
Extended Forecast for

4 Miles E Half Moon Bay CA

  • Today

    Today: Mostly sunny, with a high near 60. East northeast wind 6 to 8 mph becoming north in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 47. North wind around 6 mph becoming east after midnight.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61. North northeast wind around 7 mph.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. Northeast wind around 6 mph.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64. Northeast wind around 7 mph.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain after 10am. Mostly cloudy, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 60. East northeast wind 6 to 8 mph becoming north in the afternoon.
Tonight
Mostly clear, with a low around 47. North wind around 6 mph becoming east after midnight.
Thursday
Sunny, with a high near 61. North northeast wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 48. Northeast wind around 6 mph.
Friday
Partly sunny, with a high near 64. Northeast wind around 7 mph.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
A slight chance of rain after 10am. Mostly cloudy, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Half Moon Bay CA
 37.46°N 122.36°W (Elev. 1145 ft)
Last Update:
4:54 am PST Jan 28, 2026
Forecast Valid:
9am PST Jan 28, 2026-6pm PST Feb 3, 2026
 
Forecast Discussion
 
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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