Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

San Jose / Reid / Hillv (KRHV)

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

Clear

64°F

18°C

Humidity 34%
Wind Speed NW 6 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 17 Apr 07:47 PM PDT
Extended Forecast for

10 Miles NNW Mount Hamilton CA

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 49. East wind around 5 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. East southeast wind around 6 mph becoming southwest in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. West northwest wind around 6 mph becoming south southeast in the evening.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65. South southwest wind 6 to 9 mph.

    High: 65 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. Southwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers, mainly after 11am.  Mostly sunny, with a high near 62. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers, mainly after 11pm.  Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am.  Cloudy, with a high near 51.

    High: 51 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 49. East wind around 5 mph.
Saturday
Mostly sunny, with a high near 66. East southeast wind around 6 mph becoming southwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52. West northwest wind around 6 mph becoming south southeast in the evening.
Sunday
Partly sunny, with a high near 65. South southwest wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 46. Southwest wind around 10 mph, with gusts as high as 18 mph.
Monday
A 30 percent chance of showers, mainly after 11am. Mostly sunny, with a high near 62. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers, mainly after 11pm. Low around 48. Chance of precipitation is 80%.
Tuesday
Showers, with thunderstorms also possible after 11am. Cloudy, with a high near 51.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Partly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNW Mount Hamilton CA
 37.48°N 121.68°W (Elev. 3599 ft)
1:41 am PDT Apr 18, 2026
3am PDT Apr 18, 2026-6pm PDT Apr 24, 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