Heavy Lake Effect Snow and Bitterly Cold Temperatures

A bitterly cold airmass will settle over much of the central and eastern U.S over the next several days. Well below normal temperatures and cold wind chills will be common. In addition, heavy lake effect snow will be possible especially downwind of Lakes Erie and Ontario, where up to one foot of additional snow is forecast by Sunday morning.
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Current conditions at

DW4201 San Ramon (D4201)

Lat: 37.8°NLon: -121.93°WElev: 427ft.

NA

71°F

22°C

Humidity 44%
Wind Speed WNW 1 G 4 MPH
Barometer 30.08 in
Dewpoint 48°F (9°C)
Visibility NA
Last update 11 Feb 12:51 pm PST
Extended Forecast for

3 Miles NNE San Ramon CA

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 71. West southwest wind around 6 mph.

    Mostly Sunny

    High: 71 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Light and variable wind.

    Partly Cloudy

    Low: 50 °F

  • Friday

    Friday: Mostly sunny, with a high near 68. Northwest wind 6 to 11 mph.

    Mostly Sunny

    High: 68 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 49. Northwest wind 7 to 11 mph.

    Partly Cloudy

    Low: 49 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 69. North northwest wind 5 to 7 mph.

    Mostly Sunny

    High: 69 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 46.

    Partly Cloudy

    Low: 46 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 72.

    Mostly Sunny

    High: 72 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 54.

    Mostly Clear

    Low: 54 °F

  • Washington's
    Birthday

    Washington's Birthday: Sunny, with a high near 73.

    Sunny

    High: 73 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 71. West southwest wind around 6 mph.
Tonight
Partly cloudy, with a low around 50. Light and variable wind.
Friday
Mostly sunny, with a high near 68. Northwest wind 6 to 11 mph.
Friday Night
Partly cloudy, with a low around 49. Northwest wind 7 to 11 mph.
Saturday
Mostly sunny, with a high near 69. North northwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 54.
Washington's Birthday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
A slight chance of rain. Partly sunny, with a high near 64.
Click Map For Forecast
Point Forecast:
3 Miles NNE San Ramon CA
 37.8°N 121.93°W (Elev. 640 ft)
2:24 am PST Feb 11, 2016
1pm PST Feb 11, 2016-6pm PST Feb 17, 2016
 
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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