Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Mist

57°F

14°C

Humidity 100%
Wind Speed N 8 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 57°F (14°C)
Visibility 1.00 mi
Last update 27 Aug 06:15 AM PDT
Extended Forecast for

Half Moon Bay CA

  • Today

    Today: A 20 percent chance of rain.  Mostly cloudy, with a high near 67. Light west wind becoming west northwest 5 to 9 mph in the morning.

    High: 67 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 20 percent chance of rain.  Cloudy, with a low around 58. West wind 6 to 8 mph.

    Low: 58 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain before 11am.  Cloudy, with a high near 64. West northwest wind 6 to 11 mph.

    High: 64 °F

    Slight Chance
    Rain then
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55. West northwest wind 5 to 13 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62. Light west northwest wind increasing to 5 to 10 mph in the morning.

    High: 62 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

Detailed Forecast

Today
A 20 percent chance of rain. Mostly cloudy, with a high near 67. Light west wind becoming west northwest 5 to 9 mph in the morning.
Tonight
A 20 percent chance of rain. Cloudy, with a low around 58. West wind 6 to 8 mph.
Friday
A 20 percent chance of rain before 11am. Cloudy, with a high near 64. West northwest wind 6 to 11 mph.
Friday Night
Mostly cloudy, with a low around 55. West northwest wind 5 to 13 mph, with gusts as high as 21 mph.
Saturday
Mostly cloudy, with a high near 62. Light west northwest wind increasing to 5 to 10 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Mostly cloudy, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Mostly cloudy, with a high near 59.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Mostly cloudy, with a high near 61.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 54.
Wednesday
Patchy fog. Otherwise, partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.47°N 122.45°W (Elev. 7 ft)
2:57 am PDT Aug 27, 2026
6am PDT Aug 27, 2026-6pm PDT Sep 2, 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