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

San Jose / Reid / Hillv (KRHV)

Lat: 37.33333°NLon: 121.81667°WElev: 135.0ft.

Clear

48°F

9°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 19 Jan 09:55 PM PST
Extended Forecast for

Mount Hamilton CA

  • Tonight

    Tonight: Mostly clear, with a low around 48. Light and variable wind becoming east southeast around 6 mph after midnight.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 62. Southeast wind around 6 mph becoming calm  in the morning.

    High: 62 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. Light and variable wind.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 48. Light and variable wind becoming east southeast around 6 mph after midnight.
Tuesday
Increasing clouds, with a high near 62. Southeast wind around 6 mph becoming calm in the morning.
Tuesday Night
Mostly cloudy, with a low around 48. Calm wind.
Wednesday
Mostly cloudy, with a high near 58. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 45. Calm wind.
Thursday
Partly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
1:15 pm PST Jan 19, 2026
10pm 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