Heavy Rain and Flooding Concerns in Hawaii; Severe Weather this Weekend in the Plains; Pacific Storm in the West

A storm system near the Hawaiian Islands is expected to bring periods of heavy rainfall, strong winds, and isolated strong to severe thunderstorms through Friday. Several rounds of severe thunderstorms are forecast to impact parts of the Great Plains into the Midwest this weekend into next week. Moderate to heavy rainfall and high elevation snow is expected this weekend over California and Oregon. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

64°F

18°C

Humidity 67%
Wind Speed NW 8 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 09 Apr 07:47 PM PDT
Extended Forecast for

10 Miles E Mount Hamilton CA

  • Tonight

    Tonight: A slight chance of showers before 11pm, then a chance of showers after 3am.  Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 41. Light southwest wind.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm.  Patchy fog before 9am. High near 60. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 60 °F

    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 40. Southwest wind 5 to 9 mph becoming light south southwest  in the evening. Winds could gust as high as 20 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 2pm.  High near 58. Light south wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 28 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 34. South southwest wind 6 to 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 11am.  High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of rain, mainly before 11pm.  Patchy fog after 5am. Patchy frost after 3am.  Otherwise, mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Monday

    Monday: A slight chance of rain.  Patchy fog before 9am. Patchy frost before 7am.  Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers before 11pm, then a chance of showers after 3am. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 41. Light southwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog before 9am. High near 60. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 40. Southwest wind 5 to 9 mph becoming light south southwest in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers, with thunderstorms also possible after 2pm. High near 58. Light south wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 34. South southwest wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers, with thunderstorms also possible after 11am. High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 50 percent chance of rain, mainly before 11pm. Patchy fog after 5am. Patchy frost after 3am. Otherwise, mostly cloudy, with a low around 33.
Monday
A slight chance of rain. Patchy fog before 9am. Patchy frost before 7am. Otherwise, mostly sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Mount Hamilton CA
 37.33°N 121.47°W (Elev. 2113 ft)
4:46 pm PDT Apr 9, 2026
9pm PDT Apr 9, 2026-6pm PDT Apr 16, 2026
 
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Additional Resources

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