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

Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Mostly Cloudy

54°F

12°C

Humidity 81%
Wind Speed NA 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 Jan 09:47 PM PST
Extended Forecast for

Mount Hamilton CA

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 56. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 56 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. Light north northwest wind.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. North wind around 6 mph.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 48. Calm wind.
Thursday
Partly sunny, with a high near 56. Calm wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 40. Light north northwest wind.
Friday
Sunny, with a high near 55. Light and variable wind.
Friday Night
Mostly clear, with a low around 38. North wind around 6 mph.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
A slight chance of rain. Partly sunny, with a high near 57.
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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:
2:22 pm PST Jan 21, 2026
Forecast Valid:
10pm PST Jan 21, 2026-6pm PST Jan 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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