National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

63°F

17°C

Humidity 59%
Wind Speed WNW 5 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 28 Jan 12:47 PM PST
Extended Forecast for

Mount Hamilton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 58. West northwest wind around 6 mph.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. North northeast wind around 6 mph.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62. East northeast wind 3 to 5 mph.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. East northeast wind 3 to 5 mph.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65. East northeast wind 3 to 5 mph.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 58. West northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 41. North northeast wind around 6 mph.
Thursday
Sunny, with a high near 62. East northeast wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 46. East northeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 65. East northeast wind 3 to 5 mph.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
Last Update:
12:26 pm PST Jan 28, 2026
Forecast Valid:
1pm PST Jan 28, 2026-6pm PST Feb 3, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation