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

San Jose / Reid / Hillv (KRHV)

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

Partly Cloudy

24°C

75°F

Humidity 23%
Wind Speed NW 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 2°C (36°F)
Visibility 16 km
Last update 18 Apr 12:47 PM PDT
Extended Forecast for

Mount Hamilton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 18. West southwest wind around 10 km/h.

    High: 18 °C

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 10. West wind 5 to 8 km/h becoming calm in the evening.

    Low: 10 °C

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 18. South southwest wind 5 to 14 km/h.

    High: 18 °C

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 7. South wind 10 to 14 km/h.

    Low: 7 °C

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after 11am. Mostly sunny, with a high near 17. South southwest wind 11 to 18 km/h, with gusts as high as 35 km/h. New precipitation amounts of less than 1 mm possible.

    High: 17 °C

    Chance
    Showers

  • Monday Night

    Monday Night: Showers, mainly after 11pm. Low around 8. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 cm possible.

    Low: 8 °C

    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 11am. High near 10. Chance of precipitation is 90%.

    High: 10 °C

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 7.

    Low: 7 °C

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 11.

    High: 11 °C

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 18. West southwest wind around 10 km/h.
Tonight
Mostly cloudy, with a low around 10. West wind 5 to 8 km/h becoming calm in the evening.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 18. South southwest wind 5 to 14 km/h.
Sunday Night
Mostly clear, with a low around 7. South wind 10 to 14 km/h.
Monday
A 30 percent chance of showers after 11am. Mostly sunny, with a high near 17. South southwest wind 11 to 18 km/h, with gusts as high as 35 km/h. New precipitation amounts of less than 1 mm possible.
Monday Night
Showers, mainly after 11pm. Low around 8. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 cm possible.
Tuesday
Showers, with thunderstorms also possible after 11am. High near 10. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 7.
Wednesday
A chance of showers. Partly sunny, with a high near 11.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Sunny, with a high near 14.
Thursday Night
Mostly clear, with a low around 6.
Friday
Sunny, with a high near 15.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Hamilton CA
 37.35°N 121.64°W (Elev. 2398 m)
Last Update:
1:26 pm PDT Apr 18, 2026
Forecast Valid:
2pm PDT Apr 18, 2026-6pm PDT Apr 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation