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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Overcast

57°F

14°C

Humidity 100%
Wind Speed S 8 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 18 Jun 05:55 AM PDT
Extended Forecast for

4 Miles ESE Half Moon Bay CA

  • Today

    Today: Partly sunny, with a high near 60. South southwest wind 6 to 9 mph, with gusts as high as 23 mph.

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. South southwest wind 7 to 9 mph, with gusts as high as 23 mph.

    Low: 56 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 62. South wind 7 to 9 mph, with gusts as high as 22 mph.

    High: 62 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. Southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 22 mph.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

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

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog between midnight and 3am. Otherwise, partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog between 9am and 11am. Otherwise, partly sunny, with a high near 65.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 60. South southwest wind 6 to 9 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, with a low around 56. South southwest wind 7 to 9 mph, with gusts as high as 23 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 62. South wind 7 to 9 mph, with gusts as high as 22 mph.
Friday Night
Mostly cloudy, with a low around 56. Southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 22 mph.
Saturday
Mostly sunny, with a high near 62. Calm wind becoming west 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Patchy fog between midnight and 3am. Otherwise, partly cloudy, with a low around 52.
Monday
Patchy fog between 9am and 11am. Otherwise, partly sunny, with a high near 65.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 52.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 66.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 53.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Half Moon Bay CA
 37.44°N 122.35°W (Elev. 728 ft)
Last Update:
2:56 am PDT Jun 18, 2026
Forecast Valid:
6am PDT Jun 18, 2026-6pm PDT Jun 24, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation