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

Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Mostly Cloudy

63°F

17°C

Humidity 93%
Wind Speed WSW 5 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 61°F (16°C)
Visibility 7.00 mi
Last update 17 Aug 12:35 PM PDT
Extended Forecast for

2 Miles NW Half Moon Bay CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 64. West wind 5 to 7 mph.

    High: 64 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, cloudy, with a low around 55. West northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 56.

    Low: 56 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 64.

    High: 64 °F

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 56.

    Low: 56 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 64. West wind 5 to 7 mph.
Tonight
Patchy fog after 11pm. Otherwise, cloudy, with a low around 55. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Patchy fog after 11pm. Otherwise, cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 65. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
Cloudy, with a low around 56.
Thursday
Cloudy, with a high near 64.
Thursday Night
Cloudy, with a low around 56.
Friday
Mostly cloudy, with a high near 63.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
Mostly cloudy, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Mostly cloudy, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Half Moon Bay CA
 37.49°N 122.45°W (Elev. 151 ft)
Last Update:
12:36 pm PDT Aug 17, 2026
Forecast Valid:
12pm PDT Aug 17, 2026-6pm PDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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