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

Heavy Rainfall on the Western Gulf Coast; Severe Thunderstorms in the Southern Plains Friday

A multi-day heavy rainfall event will continue over the western Gulf Coast through Monday. Slight Risks of excessive rainfall have been issued, and Flood Watches remain in effect through Monday evening. Scattered severe storms capable of producing large hail and damaging winds are possible across western portions of Texas and Oklahoma on Friday. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Fog

50°F

10°C

Humidity 100%
Wind Speed SSE 4 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 50°F (10°C)
Visibility 0.25 mi
Wind Chill49°F (9°C)
Last update 22 May 12:35 AM PDT
Extended Forecast for

Half Moon Bay CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Friday

    Friday: Partly sunny, with a high near 63. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. South wind 5 to 7 mph.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62. South wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. South southwest wind 5 to 9 mph.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 48.

    Low: 48 °F

    Areas Fog

  • Memorial Day

    Memorial Day: Areas of fog before 8am. Otherwise, partly sunny, with a high near 60.

    High: 60 °F

    Areas Fog
    then Partly
    Sunny

  • Monday Night

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

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 46. Calm wind.
Friday
Partly sunny, with a high near 63. Calm wind becoming south southwest 5 to 9 mph in the morning.
Friday Night
Mostly cloudy, with a low around 49. South wind 5 to 7 mph.
Saturday
Partly sunny, with a high near 62. South wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 50. South southwest wind 5 to 9 mph.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 48.
Memorial Day
Areas of fog before 8am. Otherwise, partly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.47°N 122.45°W (Elev. 7 ft)
Last Update:
12:52 am PDT May 22, 2026
Forecast Valid:
12am PDT May 22, 2026-6pm PDT May 28, 2026
 
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Additional Resources

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