Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Mostly Cloudy

57°F

14°C

Humidity 93%
Wind Speed NNW 5 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 20 Jun 10:55 PM PDT
Extended Forecast for

Half Moon Bay CA

  • Tonight

    Tonight: Patchy fog after midnight.  Otherwise, cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 63. Calm wind becoming west southwest 5 to 8 mph in the morning.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 51. West wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 65. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 52. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 66.

    High: 66 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 52.

    Low: 52 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 10am.  Otherwise, partly sunny, with a high near 67.

    High: 67 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 53.

    Low: 53 °F

    Patchy Fog

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, cloudy, with a low around 51. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 63. Calm wind becoming west southwest 5 to 8 mph in the morning.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 51. West wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 65. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 52. West southwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 66.
Tuesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 52.
Wednesday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 67.
Wednesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 54.
Saturday
Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.48°N 122.42°W (Elev. 397 ft)
1:26 pm PDT Jun 20, 2026
11pm PDT Jun 20, 2026-6pm PDT Jun 27, 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