Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Clear

54°F

12°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 9.00 mi
Last update 18 Apr 08:55 PM PDT
Extended Forecast for

4 Miles ESE Half Moon Bay CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 62. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 62 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 4am.  Partly cloudy, with a low around 51. South wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 11am.  Partly sunny, with a high near 63. South wind 10 to 14 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain.  Low around 53. South wind 7 to 10 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  High near 58. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm.  Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of rain, mainly before 11am.  Mostly sunny, with a high near 59.

    High: 59 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 50. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 62. Calm wind becoming south southwest 5 to 8 mph in the morning.
Sunday Night
A 20 percent chance of rain after 4am. Partly cloudy, with a low around 51. South wind 7 to 10 mph, with gusts as high as 22 mph.
Monday
Rain likely, mainly after 11am. Partly sunny, with a high near 63. South wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 53. South wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 58. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Wednesday
A chance of rain, mainly before 11am. Mostly sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Half Moon Bay CA
 37.44°N 122.35°W (Elev. 728 ft)
8:46 pm PDT Apr 18, 2026
9pm PDT Apr 18, 2026-6pm PDT Apr 25, 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