Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Mist

64°F

18°C

Humidity 93%
Wind Speed NW 4 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 63°F (17°C)
Visibility 5.00 mi
Last update 08 Sep 07:35 PM PDT
Extended Forecast for

Half Moon Bay CA

Heat Advisory September 8, 07:53pm until September 10, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 8, 07:53pm until September 10, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Tonight

    Low: 63 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 63 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 63. Calm wind.
Wednesday
Mostly sunny, with a high near 86. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 58. West wind 5 to 7 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 65.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.48°N 122.42°W (Elev. 397 ft)
1:25 pm PDT Sep 8, 2026
7pm PDT Sep 8, 2026-6pm PDT Sep 15, 2026
 
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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