Late January Extreme Cold; Watching for Another East Coast Storm Threat This Weekend

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. 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 81%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 26 Jan 09:50 PM PST
Extended Forecast for

4 Miles SW Mount Hamilton CA

  • Today

    Today: Mostly sunny, with a high near 62. Southeast wind 10 to 14 mph becoming south southwest in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain.  Patchy fog after 1am.  Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 43. South southeast wind 5 to 7 mph becoming calm.

    Low: 43 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, sunny, with a high near 63. North northeast wind 7 to 9 mph becoming west northwest in the morning.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 66 °F

    Sunny

  • Thursday Night

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

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 62. Southeast wind 10 to 14 mph becoming south southwest in the afternoon.
Tonight
A 20 percent chance of rain. Patchy fog after 1am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 43. South southeast wind 5 to 7 mph becoming calm.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 63. North northeast wind 7 to 9 mph becoming west northwest in the morning.
Wednesday Night
Mostly clear, with a low around 39. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 66. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A slight chance of rain. Partly sunny, with a high near 67.
Sunday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Hamilton CA
 37.3°N 121.69°W (Elev. 1401 ft)
2:38 am PST Jan 27, 2026
6am PST Jan 27, 2026-6pm PST Feb 2, 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