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

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

50°F

10°C

Humidity 65%
Wind Speed S 3 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 20 Jan 12:00 AM PST
Extended Forecast for

13 Miles SSW Turlock CA

Dense Fog Advisory January 20, 12:50am until January 20, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory January 20, 12:50am until January 20, 12:00pm

    NOW until 12:00pm Tue

    Dense Fog Advisory

  • Overnight

    Low: 42 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Widespread haze. Patchy dense fog before 2pm.  Otherwise, mostly cloudy, with a high near 53. Calm wind.

    High: 53 °F

    Patchy Dense
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog.  Otherwise, mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 11am.  Otherwise, cloudy, with a high near 59. Calm wind.

    High: 59 °F

    Patchy Fog
    then Cloudy

  • Wednesday Night

    Wednesday Night: Patchy fog after 9pm.  Otherwise, cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog.  Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Overnight
Widespread haze. Patchy dense fog. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Tuesday
Widespread haze. Patchy dense fog before 2pm. Otherwise, mostly cloudy, with a high near 53. Calm wind.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 45. Calm wind.
Wednesday
Patchy fog before 11am. Otherwise, cloudy, with a high near 59. Calm wind.
Wednesday Night
Patchy fog after 9pm. Otherwise, cloudy, with a low around 47. Calm wind.
Thursday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 61.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 44.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 59.
Friday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 59.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 59.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 42.
Monday
Patchy fog. Otherwise, partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSW Turlock CA
 37.34°N 120.98°W (Elev. 66 ft)
8:56 pm PST Jan 19, 2026
12am PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database