Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Clear

63°F

17°C

Humidity 59%
Wind Speed N 0 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 08 Sep 03:20 AM PDT
Extended Forecast for

3 Miles NNE Hercules CA

Heat Advisory September 9, 10:00am until September 10, 10:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind becoming west around 6 mph in the morning.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 66. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 95. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 95 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. West wind 5 to 9 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 59. Calm wind.
Tuesday
Sunny, with a high near 91. Calm wind becoming west around 6 mph in the morning.
Tuesday Night
Increasing clouds, with a low around 66. West southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 95. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 68. West wind 5 to 9 mph.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 78.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Hercules CA
 38.05°N 122.22°W (Elev. 62 ft)
2:36 am PDT Sep 8, 2026
3am PDT Sep 8, 2026-6pm PDT Sep 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database