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

10 Miles E Mount Hamilton CA

  • Overnight

    Overnight: Areas of fog.  Otherwise, partly cloudy, with a steady temperature around 46. Calm wind.

    Low: 46 °F

    Areas Fog

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 70. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 70 °F

    Areas Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of rain and thunderstorms.  Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 41. Southwest wind around 6 mph becoming calm  in the evening.  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
    and Patchy
    Fog

  • Friday

    Friday: Showers and possibly a thunderstorm.  Areas of fog before 10am. High near 61. Calm wind becoming southwest 5 to 9 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Showers and
    Areas Fog

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 8pm, then rain, mainly after 8pm.  Low around 39. Southwest wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers

  • Saturday

    Saturday: Rain, mainly before 2pm, then showers and possibly a thunderstorm after 2pm.  High near 57. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °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 52.

    High: 52 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of rain before 11pm.  Patchy fog after 5am. Patchy frost after 3am.  Otherwise, mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain
    then Patchy
    Frost and
    Patchy Fog

Detailed Forecast

Overnight
Areas of fog. Otherwise, partly cloudy, with a steady temperature around 46. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Areas of fog before 9am. Otherwise, mostly sunny, with a high near 70. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
A chance of rain and thunderstorms. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 41. Southwest wind around 6 mph becoming calm in the evening. 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. Areas of fog before 10am. High near 61. Calm wind becoming southwest 5 to 9 mph in the afternoon. 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 39. Southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 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 57. 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 52.
Sunday Night
A chance of rain before 11pm. Patchy fog after 5am. Patchy frost after 3am. Otherwise, mostly cloudy, with a low around 32.
Monday
Patchy fog before 9am. Patchy frost before 7am. Otherwise, mostly sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Mount Hamilton CA
 37.33°N 121.47°W (Elev. 2113 ft)
1:26 am PDT Apr 9, 2026
3am PDT Apr 9, 2026-6pm PDT Apr 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

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