Heavy Rain and Snowmelt Threatens Flooding in Southeast and Mid-Atlantic; Strong Cold Front Presses Across the Northwest

A southern storm system will bring heavy to excessive rain from the Southeast to the Mid-Atlantic through Saturday with a secondary heavy rain threat area from the Lower Mississippi Valley into the Ohio Valley. Out West, a strong cold front will continue rain, mountain snow and gusty winds into Saturday morning. Another front will bring more unsettled weather to the region by Sunday. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10ft.

Mostly Cloudy

54°F

12°C

Humidity 82%
Wind Speed SE 5 MPH
Barometer 30.07 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 15 Dec 7:50 am PST
Extended Forecast for

Belmont CA

  • Today

    Today: Partly sunny, with a high near 64. Southeast wind 5 to 10 mph.

    Partly Sunny

    High: 64 °F

  • Tonight

    Tonight: A 30 percent chance of showers after 10pm.  Increasing clouds, with a low around 53. Southeast wind 5 to 7 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers

    Low: 53 °F

  • Sunday

    Sunday: A chance of showers before 10am, then rain between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall.  High near 62. South wind 11 to 18 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    High: 62 °F

  • Sunday
    Night

    Sunday Night: Showers and possibly a thunderstorm before 10pm, then showers likely. Some of the storms could produce heavy rainfall.  Low around 51. South wind 13 to 17 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Heavy Rain
    then Showers
    Likely

    Low: 51 °F

  • Monday

    Monday: A 20 percent chance of showers before 10am.  Mostly sunny, with a high near 61. North wind around 7 mph.

    Slight Chance
    Showers then
    Mostly Sunny

    High: 61 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 45.

    Partly Cloudy

    Low: 45 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62.

    Mostly Sunny

    High: 62 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Partly Cloudy

    Low: 45 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    Mostly Sunny

    High: 63 °F

Detailed Forecast

Today
Partly sunny, with a high near 64. Southeast wind 5 to 10 mph.
Tonight
A 30 percent chance of showers after 10pm. Increasing clouds, with a low around 53. Southeast wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers before 10am, then rain between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 62. South wind 11 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 10pm, then showers likely. Some of the storms could produce heavy rainfall. Low around 51. South wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A 20 percent chance of showers before 10am. Mostly sunny, with a high near 61. North wind around 7 mph.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Mostly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 62.
Click Map For Forecast
Point Forecast:
Belmont CA
 37.54°N 122.29°W (Elev. 151 ft)
5:09 am PST Dec 15, 2018
8am PST Dec 15, 2018-6pm PST Dec 21, 2018
 
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