Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Mostly Cloudy

63°F

17°C

Humidity 59%
Wind Speed SSW 17 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 11 Apr 01:47 PM PDT
Extended Forecast for

4 Miles S Mount Hamilton CA

  • This Afternoon

    This Afternoon: A chance of showers, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 50. South southwest wind around 14 mph, with gusts as high as 28 mph.  Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am.  Low around 41. Southwest wind 11 to 16 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 41 °F

    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm.  High near 46. Southwest wind 10 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 46 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 11pm.  Mostly cloudy, with a low around 40. West southwest wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 20 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 50. South southwest wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Low around 41. Southwest wind 11 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday
Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. High near 46. Southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 40. West southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 53. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 60.
Thursday Night
Clear, with a low around 42.
Friday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Mount Hamilton CA
 37.28°N 121.63°W (Elev. 2831 ft)
1:26 pm PDT Apr 11, 2026
2pm PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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