Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

63°F

17°C

Humidity 77%
Wind Speed WNW 8 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 08 Apr 09:55 PM PDT
Extended Forecast for

9 Miles N Mount Hamilton CA

  • Tonight

    Tonight: Mostly clear, with a low around 48. West southwest wind 5 to 8 mph.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms between 2pm and 4pm.  Mostly sunny, with a high near 65. Light southwest wind increasing to 5 to 9 mph in the morning.  Chance of precipitation is 20%.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 47. West southwest wind 6 to 9 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after 11am.  High near 57. South southwest wind 6 to 9 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 46. South wind 7 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 11am.  High near 51. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 51 °F

    Showers

  • Saturday Night

    Saturday Night: Rain.  Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Sunday

    Sunday: Rain likely.  Mostly cloudy, with a high near 47.

    High: 47 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 11pm.  Partly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 48. West southwest wind 5 to 8 mph.
Thursday
A slight chance of showers and thunderstorms between 2pm and 4pm. Mostly sunny, with a high near 65. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 20%.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 47. West southwest wind 6 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers, then showers and possibly a thunderstorm after 11am. High near 57. South southwest wind 6 to 9 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 46. South wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 51. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain. Low around 40. Chance of precipitation is 80%.
Sunday
Rain likely. Mostly cloudy, with a high near 47.
Sunday Night
A chance of rain, mainly before 11pm. Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles N Mount Hamilton CA
 37.49°N 121.65°W (Elev. 3081 ft)
4:51 pm PDT Apr 8, 2026
10pm PDT Apr 8, 2026-6pm PDT Apr 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database