Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

73°F

23°C

Humidity 29%
Wind Speed NA 4 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Apr 11:50 AM PDT
Extended Forecast for

Mount Hamilton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 62. South southwest wind 11 to 13 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. South wind 9 to 11 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Rain likely, mainly after 5pm.  Increasing clouds, with a high near 59. South southwest wind 13 to 16 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Sunny then
    Rain Likely

  • Monday Night

    Monday Night: Rain likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then rain after 11pm.  Low around 46. South southwest wind 10 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 46 °F

    Showers

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am.  High near 49. South southwest wind 7 to 11 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 49 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers
    Likely then
    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain.  Partly sunny, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 62. South southwest wind 11 to 13 mph.
Tonight
Mostly clear, with a low around 44. South wind 9 to 11 mph.
Monday
Rain likely, mainly after 5pm. Increasing clouds, with a high near 59. South southwest wind 13 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then rain after 11pm. Low around 46. South southwest wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 49. South southwest wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 52.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 59.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
12:26 pm PDT Apr 19, 2026
1pm PDT Apr 19, 2026-6pm PDT Apr 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