Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Jolon Hills (PG727)

Lat: 35.88446°NLon: 120.95584°WElev: 1495.0ft.

NA

56°F

13°C

Humidity 42%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 19 Jan 11:40 PM PST
Extended Forecast for

4 Miles SE Lake San Antonio CA

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Calm wind.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 68. Calm wind.

    High: 68 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 66.

    High: 66 °F

    Areas Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. Calm wind.
Tuesday
Mostly sunny, with a high near 72. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 43. Calm wind.
Wednesday
Mostly cloudy, with a high near 68. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 44. Calm wind.
Thursday
Partly sunny, with a high near 65.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 41.
Friday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 66.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 39.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 67.
Saturday Night
Patchy fog. Otherwise, mostly clear, with a low around 39.
Sunday
Patchy fog. Otherwise, mostly sunny, with a high near 68.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 38.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Lake San Antonio CA
 35.82°N 120.96°W (Elev. 1083 ft)
1:15 pm PST Jan 19, 2026
11pm PST Jan 19, 2026-6pm PST Jan 26, 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