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

77°F

25°C

Humidity 47%
Wind Speed NNW 12 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 08 Apr 05:47 PM PDT
Extended Forecast for

11 Miles NE Mount Hamilton CA

  • Tonight

    Tonight: Mostly clear, with a low around 42. West southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 65. South southwest wind 6 to 9 mph.

    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 41. Southwest wind 6 to 9 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after 11am.  High near 58. South wind 6 to 10 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

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 40. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 11am.  High near 52. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Showers

  • Saturday Night

    Saturday Night: Rain.  Low around 33. Chance of precipitation is 80%.

    Low: 33 °F

    Rain

  • Sunday

    Sunday: Rain likely, mainly after 11am.  Partly sunny, with a high near 48.

    High: 48 °F

    Rain Likely

  • Sunday Night

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

    Low: 32 °F

    Chance Rain
    then Patchy
    Frost

Detailed Forecast

Tonight
Mostly clear, with a low around 42. West southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 65. South southwest wind 6 to 9 mph.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41. 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 58. South wind 6 to 10 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 7 to 11 mph, with gusts as high as 20 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 52. 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 33. Chance of precipitation is 80%.
Sunday
Rain likely, mainly after 11am. Partly sunny, with a high near 48.
Sunday Night
A chance of rain before 11pm. Patchy frost after 5am. Otherwise, partly cloudy, with a low around 32.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Mount Hamilton CA
 37.46°N 121.5°W (Elev. 3310 ft)
4:51 pm PDT Apr 8, 2026
6pm PDT Apr 8, 2026-6pm PDT Apr 15, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database