National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Rain

59°F

15°C

Humidity 77%
Wind Speed SSE 6 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 52°F (11°C)
Visibility 2.00 mi
Last update 10 Apr 09:47 PM PDT
Extended Forecast for

10 Miles E Mount Hamilton CA

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 40. South southwest wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: A 50 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 56. South wind 6 to 16 mph, with gusts as high as 26 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm, mainly before 2am, then rain likely after 2am. Low around 34. Southwest wind 8 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 34 °F

    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Rain likely, then showers and possibly a thunderstorm after 11am. High near 52. South southwest wind 10 to 14 mph, with gusts as high as 25 mph. 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 40 percent chance of rain before 11pm. Patchy fog after 11pm. Patchy frost after 3am. Otherwise, mostly cloudy, with a low around 32. West southwest wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Chance Rain
    and Patchy
    Fog then
    Patchy Frost
    and Patchy
    Fog

  • Monday

    Monday: Areas of fog before 9am. Patchy frost before 8am. Otherwise, mostly sunny, with a high near 59.

    High: 59 °F

    Patchy Frost
    and Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 2am. Patchy frost after 3am. Otherwise, mostly clear, with a low around 32.

    Low: 32 °F

    Partly Cloudy
    then Patchy
    Frost and
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Areas of frost before 8am. Otherwise, sunny, with a high near 65.

    High: 65 °F

    Areas Frost
    and Patchy
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 5am. Patchy frost after 3am. Otherwise, mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear
    then Patchy
    Frost and
    Patchy Fog

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 40. South southwest wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 50 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 56. South wind 6 to 16 mph, with gusts as high as 26 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Showers and possibly a thunderstorm, mainly before 2am, then rain likely after 2am. Low around 34. Southwest wind 8 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Rain likely, then showers and possibly a thunderstorm after 11am. High near 52. South southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A 40 percent chance of rain before 11pm. Patchy fog after 11pm. Patchy frost after 3am. Otherwise, mostly cloudy, with a low around 32. West southwest wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Areas of fog before 9am. Patchy frost before 8am. Otherwise, mostly sunny, with a high near 59.
Monday Night
Patchy fog after 2am. Patchy frost after 3am. Otherwise, mostly clear, with a low around 32.
Tuesday
Patchy fog before 9am. Areas of frost before 8am. Otherwise, sunny, with a high near 65.
Tuesday Night
Patchy fog after 5am. Patchy frost after 3am. Otherwise, mostly clear, with a low around 32.
Wednesday
Patchy fog before 8am. Patchy frost before 7am. Otherwise, sunny, with a high near 66.
Wednesday Night
Patchy frost. Otherwise, partly cloudy, with a low around 34.
Thursday
Patchy frost. Otherwise, sunny, with a high near 67.
Thursday Night
Patchy frost. Otherwise, clear, with a low around 36.
Friday
Patchy frost. Otherwise, sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
10 Miles E Mount Hamilton CA
 37.33°N 121.47°W (Elev. 2113 ft)
Last Update:
11:27 pm PDT Apr 10, 2026
Forecast Valid:
12am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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Additional Resources

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Chance of Precipitation