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.

Mostly Cloudy

75°F

24°C

Humidity 25%
Wind Speed NW 9 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 18 Apr 05:47 PM PDT
Extended Forecast for

Mount Hamilton CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. West wind around 6 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Light south wind becoming southwest 5 to 9 mph in the morning.

    High: 64 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. South wind 6 to 9 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after 11am.  Mostly sunny, with a high near 62. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers, mainly after 11pm.  Low around 47. South southwest wind 7 to 10 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 50. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 50 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers.  Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers.  Partly sunny, with a high near 52.

    High: 52 °F

    Chance
    Showers

  • Wednesday Night

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

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 50. West wind around 6 mph becoming calm in the evening.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Light south wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 44. South wind 6 to 9 mph.
Monday
A 30 percent chance of showers after 11am. Mostly sunny, with a high near 62. South southwest wind 7 to 11 mph, with gusts as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers, mainly after 11pm. Low around 47. South southwest wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 50. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Wednesday
A chance of showers. Partly sunny, with a high near 52.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 61.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 ft)
1:26 pm PDT Apr 18, 2026
6pm PDT Apr 18, 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