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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Half Moon Bay Airport (KHAF)

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

Partly Cloudy

50°F

10°C

Humidity 100%
Wind Speed NE 3 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 50°F (10°C)
Visibility 8.00 mi
Last update 18 Nov 03:15 AM PST
Extended Forecast for

4 Miles SW Hillsborough CA

  • Overnight

    Overnight: A 50 percent chance of rain. Mostly cloudy, with a low around 46. Northeast wind around 9 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 56. Northeast wind 7 to 13 mph becoming west in the afternoon.

    High: 56 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. West southwest wind 7 to 10 mph.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 54. South southwest wind around 7 mph.

    High: 54 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Rain, mainly after 10pm. Low around 49. South wind 9 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 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °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 58.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
A 50 percent chance of rain. Mostly cloudy, with a low around 46. Northeast wind around 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 56. Northeast wind 7 to 13 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 48. West southwest wind 7 to 10 mph.
Wednesday
Mostly cloudy, with a high near 54. South southwest wind around 7 mph.
Wednesday Night
Rain, mainly after 10pm. Low around 49. South wind 9 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 54. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter 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 58.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Hillsborough CA
 37.52°N 122.4°W (Elev. 1293 ft)
Last Update:
1:59 am PST Nov 18, 2025
Forecast Valid:
3am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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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