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

Tracking Areas of Fire Weather, Winter Weather, and Severe Weather Thursday

Continuation of gusty winds and low relative humidity will bring additional periods of critical fire weather to the southern Plains Thursday and Friday. Another Pacific storm will continue gusty winds and heavy snow over the western mountains into Thursday. Severe thunderstorms are possible across parts of the middle Mississippi into lower Ohio Valleys Thursday afternoon into early evening. Read More >

Hazardous Weather Conditions

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Mostly Cloudy

46°F

8°C

Humidity 81%
Wind Speed SSE 9 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Feb 09:55 PM PST
Extended Forecast for

Mount Hamilton CA

Extreme Cold Warning February 20, 01:00am until February 20, 09:00am
Click here for hazard details and duration
Extreme Cold Warning

  • Overnight

    Overnight: Rain and snow before 4am, then rain and snow showers. Some thunder is also possible. Low around 33. South southeast wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.

    Low: 33 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow, mainly before 1pm. Some thunder is also possible. High near 38. West northwest wind 18 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 38 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Widespread frost before 1am, then widespread frost after 2am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 28. West northwest wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Mostly Cloudy
    then Frost

  • Friday

    Friday: Partly sunny, with a high near 42. North northwest wind around 5 mph becoming light and variable in the morning.

    High: 42 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. East southeast wind 3 to 7 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A chance of rain, mainly before 10am. Partly sunny, with a high near 55.

    High: 55 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

Detailed Forecast

Overnight
Rain and snow before 4am, then rain and snow showers. Some thunder is also possible. Low around 33. South southeast wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.
Thursday
Rain and snow, mainly before 1pm. Some thunder is also possible. High near 38. West northwest wind 18 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
Widespread frost before 1am, then widespread frost after 2am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 28. West northwest wind 6 to 13 mph, with gusts as high as 23 mph.
Friday
Partly sunny, with a high near 42. North northwest wind around 5 mph becoming light and variable in the morning.
Friday Night
Partly cloudy, with a low around 32. East southeast wind 3 to 7 mph.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 39.
Sunday
A chance of rain, mainly before 10am. Partly sunny, with a high near 55.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 46.
Monday
Rain likely, mainly after 4pm. Partly sunny, with a high near 58.
Monday Night
Rain. Mostly cloudy, with a low around 50.
Tuesday
Rain. Mostly cloudy, with a high near 54.
Tuesday Night
Rain. Mostly cloudy, with a low around 48.
Wednesday
Rain likely. Partly sunny, with a high near 54.
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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:
1:27 am PST Feb 19, 2026
Forecast Valid:
2am PST Feb 19, 2026-6pm PST Feb 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation