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

Livermore, Livermore Municipal Airport (KLVK)

Lat: 37.69278°NLon: 121.81444°WElev: 397.0ft.

Partly Cloudy

70°F

21°C

Humidity 49%
Wind Speed SSW 13 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 10 Apr 02:35 PM PDT
Extended Forecast for

4 Miles ESE Union City CA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 62. Southwest wind around 14 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Chance
    T-storms

  • Tonight

    Tonight: Rain and thunderstorms likely before 3am, then a chance of rain between 3am and 5am. Mostly cloudy, with a low around 52. South southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 58. South wind 13 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 47. South wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 53. Southwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 62. Southwest wind around 14 mph, with gusts as high as 22 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and thunderstorms likely before 3am, then a chance of rain between 3am and 5am. Mostly cloudy, with a low around 52. South southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 58. South wind 13 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 47. South wind 16 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 53. Southwest wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 64.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Union City CA
 37.58°N 121.93°W (Elev. 1017 ft)
Last Update:
1:26 pm PDT Apr 10, 2026
Forecast Valid:
3pm PDT Apr 10, 2026-6pm PDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation