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

11 Miles NE Mount Hamilton CA

  • Overnight

    Overnight: Partly cloudy, with a low around 43. West southwest wind around 8 mph.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 64. South southwest wind 5 to 8 mph.  Chance of precipitation is 30%.

    High: 64 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of rain and thunderstorms.  Mostly cloudy, with a low around 41. Southwest wind 6 to 9 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Chance Rain

  • Friday

    Friday: Showers and possibly a thunderstorm.  High near 55. South wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 8pm, then rain, mainly after 8pm.  Low around 40. South southwest wind 8 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Showers

  • Saturday

    Saturday: Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm.  High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 8pm, then rain after 8pm.  Low around 33. Chance of precipitation is 90%.

    Low: 33 °F

    Showers

  • Sunday

    Sunday: Rain likely, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 48.

    High: 48 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of rain before 11pm.  Patchy frost after 5am.  Otherwise, mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    then Patchy
    Frost

Detailed Forecast

Overnight
Partly cloudy, with a low around 43. West southwest wind around 8 mph.
Thursday
A slight chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 64. South southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 41. Southwest wind 6 to 9 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm. High near 55. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm before 8pm, then rain, mainly after 8pm. Low around 40. South southwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm. High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then rain after 8pm. Low around 33. Chance of precipitation is 90%.
Sunday
Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 48.
Sunday Night
A chance of rain before 11pm. Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 32.
Monday
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Mount Hamilton CA
 37.46°N 121.5°W (Elev. 3310 ft)
1:26 am PDT Apr 9, 2026
1am PDT Apr 9, 2026-6pm PDT Apr 15, 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