Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. 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	100%
Wind Speed	S 19 MPH
Barometer	29.89 in (1012.19 mb)
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	11 Apr 11:15 AM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Half Moon Bay CA

Today
High: 61 °F
Heavy Rain
Tonight
Low: 45 °F
Heavy Rain
Sunday
High: 59 °F
Showers
Likely
Sunday Night
Low: 45 °F
Chance
Showers
Monday
High: 62 °F
Mostly Sunny
Monday Night
Low: 47 °F
Mostly Clear
Tuesday
High: 62 °F
Mostly Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 62 °F
Mostly Sunny

Detailed Forecast

Today

A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 61. South wind 17 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Low around 45. Southwest wind 13 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 59. West southwest wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 30 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 45. West southwest wind 5 to 10 mph becoming light in the evening.

Monday

Mostly sunny, with a high near 62. Light west wind becoming west northwest 5 to 10 mph in the afternoon.

Monday Night

Mostly clear, with a low around 47.

Tuesday

Mostly sunny, with a high near 62.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Mostly sunny, with a high near 62.

Wednesday Night

Partly cloudy, with a low around 47.