Severe Weather and Heavy Rain for the Southern U.S.

A potent storm system will roll across the Southern tier of the U.S. over the next two days. As a result, severe thunderstorms with large hail, damaging winds and a few tornadoes are possible from the southern Plains and Lower Mississippi Valley into the South and Southeast. Also, heavy rain from these thunderstorms may cause some flood concerns, especially in the Lower Mississippi Valley. Read More >

Current conditions at

San Jose, San Jose International Airport (KSJC)

Lat: 37.35917°NLon: 121.92417°WElev: 59ft.

Mostly Clear

50°F

10°C

Humidity 71%
Wind Speed S 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 23 Apr 03:53 AM PDT
Extended Forecast for

Cupertino CA

  • Today

    Today: Sunny, with a high near 68. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.

    Sunny

    High: 68 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. North northwest wind 5 to 8 mph becoming calm  in the evening.

    Mostly Cloudy

    Low: 46 °F

  • Saturday

    Saturday: Cloudy through mid morning, then becoming mostly sunny, with a high near 65. Calm wind becoming west 5 to 9 mph in the afternoon.

    Mostly Sunny

    High: 65 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of rain after 11pm.  Cloudy, with a low around 48. West wind 5 to 9 mph becoming light  in the evening.  New precipitation amounts of less than a tenth of an inch possible.

    Slight Chance
    Rain

    Low: 48 °F

  • Sunday

    Sunday: Rain.  High near 59. Light south wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain

    High: 59 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of rain before 11pm.  Partly cloudy, with a low around 44. New precipitation amounts of less than a tenth of an inch possible.

    Slight Chance
    Rain then
    Partly Cloudy

    Low: 44 °F

  • Monday

    Monday: Mostly sunny, with a high near 62.

    Mostly Sunny

    High: 62 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 44.

    Mostly Clear

    Low: 44 °F

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    Sunny

    High: 68 °F

Detailed Forecast

Today
Sunny, with a high near 68. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 46. North northwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Cloudy through mid morning, then becoming mostly sunny, with a high near 65. Calm wind becoming west 5 to 9 mph in the afternoon.
Saturday Night
A 20 percent chance of rain after 11pm. Cloudy, with a low around 48. West wind 5 to 9 mph becoming light in the evening. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain. High near 59. Light south wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 44. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 78.
Click Map For Forecast
Point Forecast:
Cupertino CA
 37.33°N 122.04°W (Elev. 243 ft)
4:01 am PDT Apr 23, 2021
4am PDT Apr 23, 2021-6pm PDT Apr 29, 2021
 
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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