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

Dangerous Surf and Rip Currents for most of the Atlantic Shoreline; Record Heat for the West

Hurricane Erin continues to track northward. Tropical storm force winds, storm surge conditions will increase for the Outer Banks today and portions of coastal Virginia. Life-threatening surf and rip currents along much of the east coast of the U.S. this week. Major to extreme HeatRisk with new record high temperatures are expected for many areas of the western U.S. this week. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Overcast

57°F

14°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 57°F (14°C)
Visibility 8.00 mi
Last update 20 Aug 06:35 AM PDT
Extended Forecast for

4 Miles S Half Moon Bay CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 67. Light west northwest wind becoming northwest 5 to 10 mph in the morning.

    High: 67 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Northwest wind 5 to 7 mph.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 67. Northwest wind 5 to 10 mph.

    High: 67 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. Northwest wind around 8 mph.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65. West northwest wind 5 to 8 mph.

    High: 65 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Patchy fog between 8am and 10am. Otherwise, mostly cloudy, with a high near 64.

    High: 64 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 56.

    Low: 56 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 64.

    High: 64 °F

    Patchy Fog
    then Partly
    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 67. Light west northwest wind becoming northwest 5 to 10 mph in the morning.
Tonight
Mostly cloudy, with a low around 55. Northwest wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 67. Northwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 56. Northwest wind around 8 mph.
Friday
Partly sunny, with a high near 65. West northwest wind 5 to 8 mph.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
Patchy fog between 8am and 10am. Otherwise, mostly cloudy, with a high near 64.
Saturday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 56.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 64.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 55.
Monday
Patchy fog. Otherwise, mostly cloudy, with a high near 64.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 55.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Half Moon Bay CA
 37.41°N 122.4°W (Elev. 364 ft)
Last Update:
1:49 am PDT Aug 20, 2025
Forecast Valid:
6am PDT Aug 20, 2025-6pm PDT Aug 26, 2025
 
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Additional Resources

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