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 93%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 18 Jan 09:47 PM PST
Extended Forecast for

Mount Hamilton CA

  • Tonight

    Tonight: Mostly clear, with a low around 50. Northeast wind 3 to 5 mph.

    Low: 50 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 65. Northeast wind 3 to 5 mph.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. East northeast wind 3 to 5 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. East wind around 6 mph becoming light and variable  in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47. Light northeast wind.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Northeast wind 3 to 5 mph.
M.L.King Day
Sunny, with a high near 65. Northeast wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 48. East northeast wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 63. East wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 47. Light northeast wind.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
12:26 pm PST Jan 18, 2026
10pm PST Jan 18, 2026-6pm PST Jan 25, 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