National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Mostly Cloudy

59°F

15°C

Humidity 77%
Wind Speed NNW 13 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 52°F (11°C)
Visibility 9.00 mi
Last update 18 Nov 02:15 PM PST
Extended Forecast for

5 Miles E Half Moon Bay CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. West wind around 10 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Southwest wind 8 to 11 mph.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 56. Southwest wind around 5 mph.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain, mainly after 10pm. Low around 49. South wind 8 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain

  • Thursday

    Thursday: Rain, mainly before 10am. High near 57. Southwest wind 8 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 58. West wind around 10 mph.
Tonight
Partly cloudy, with a low around 48. Southwest wind 8 to 11 mph.
Wednesday
Partly sunny, with a high near 56. Southwest wind around 5 mph.
Wednesday Night
Rain, mainly after 10pm. Low around 49. South wind 8 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain, mainly before 10am. High near 57. Southwest wind 8 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 46.
Friday
Sunny, with a high near 60.
Friday Night
Clear, with a low around 47.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 47.
Monday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Half Moon Bay CA
 37.47°N 122.33°W (Elev. 817 ft)
Last Update:
12:26 pm PST Nov 18, 2025
Forecast Valid:
2pm PST Nov 18, 2025-6pm PST Nov 24, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation