Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Clear

59°F

15°C

Humidity 33%
Wind Speed NNE 6 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 28 Dec 01:35 PM PST
Extended Forecast for

Half Moon Bay CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. North northeast wind around 8 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. Northeast wind 6 to 9 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. East northeast wind 10 to 13 mph, with gusts as high as 22 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. East northeast wind around 7 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. East northeast wind 8 to 10 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after 10am.  Partly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • New Year's Day

    New Year's Day: Rain likely, mainly after 10am.  Mostly cloudy, with a high near 58.

    High: 58 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 58. North northeast wind around 8 mph.
Tonight
Mostly clear, with a low around 41. Northeast wind 6 to 9 mph.
Monday
Sunny, with a high near 58. East northeast wind 10 to 13 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 41. East northeast wind around 7 mph.
Tuesday
Sunny, with a high near 60. East northeast wind 8 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 59.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 46.
New Year's Day
Rain likely, mainly after 10am. Mostly cloudy, with a high near 58.
Thursday Night
Rain likely. Cloudy, with a low around 49.
Friday
Rain likely. Mostly cloudy, with a high near 60.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48.
Saturday
A chance of rain. Mostly cloudy, with a high near 58.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Half Moon Bay CA
 37.48°N 122.42°W (Elev. 397 ft)
12:27 pm PST Dec 28, 2025
1pm PST Dec 28, 2025-6pm PST Jan 3, 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