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

68°F

20°C

Humidity 28%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 Apr 10:47 AM PDT
Extended Forecast for

10 Miles NNW Mount Hamilton CA

  • Today

    Today: Mostly sunny, with a high near 66. Southwest wind around 6 mph.

    High: 66 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming south southeast in the evening.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 64. South southwest wind 6 to 10 mph.

    High: 64 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. South wind around 10 mph, with gusts as high as 18 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers after 11am.  Mostly sunny, with a high near 62. South wind 10 to 14 mph, with gusts as high as 23 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 49. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  High near 51. Chance of precipitation is 90%.

    High: 51 °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.

    Low: 44 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers.  Partly sunny, with a high near 51.

    High: 51 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 66. Southwest wind around 6 mph.
Tonight
Mostly cloudy, with a low around 51. West northwest wind around 6 mph becoming south southeast in the evening.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 64. South southwest wind 6 to 10 mph.
Sunday Night
Partly cloudy, with a low around 47. South wind around 10 mph, with gusts as high as 18 mph.
Monday
A 30 percent chance of showers after 11am. Mostly sunny, with a high near 62. South wind 10 to 14 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers, mainly after 11pm. Low around 49. 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 51. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 44.
Wednesday
A chance of showers. Partly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Mount Hamilton CA
 37.48°N 121.68°W (Elev. 3599 ft)
11:27 am PDT Apr 18, 2026
11am PDT Apr 18, 2026-6pm PDT Apr 24, 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