Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. 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 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 57°F (14°C)
Visibility 4.00 mi
Last update 19 Aug 08:35 PM PDT
Extended Forecast for

4 Miles S Half Moon Bay CA

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 63. Calm wind becoming west northwest 5 to 7 mph in the morning.

    High: 63 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, with a low around 55. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 55 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 62. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 62 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 54. Northwest wind 3 to 7 mph.

    Low: 54 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 54.

    Low: 54 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog after 8pm.  Otherwise, mostly cloudy, with a low around 55.

    Low: 55 °F

    Patchy Fog

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 55. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 63. Calm wind becoming west northwest 5 to 7 mph in the morning.
Thursday Night
Cloudy, with a low around 55. West northwest wind around 6 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 62. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 54. Northwest wind 3 to 7 mph.
Saturday
Mostly cloudy, with a high near 63.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 54.
Sunday
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 63.
Sunday Night
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 55.
Monday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 63.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 55.
Tuesday
Patchy fog. Otherwise, mostly cloudy, with a high near 63.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 54.
Wednesday
Patchy fog. Otherwise, mostly cloudy, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Half Moon Bay CA
 37.41°N 122.4°W (Elev. 364 ft)
1:26 pm PDT Aug 19, 2026
8pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database