Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

62°F

17°C

Humidity 63%
Wind Speed SSE 9 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 15 Mar 01:28 AM PDT
Extended Forecast for

3 Miles SSE Pittsburg CA

Heat Advisory March 16, 10:00am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 52. West wind around 8 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. North wind 6 to 9 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. West southwest wind 5 to 7 mph.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. Light and variable wind becoming north around 6 mph in the morning.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58. North northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 52. West wind around 8 mph.
Sunday
Sunny, with a high near 83. North wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 58. West southwest wind 5 to 7 mph.
Monday
Sunny, with a high near 85. Light and variable wind becoming north around 6 mph in the morning.
Monday Night
Clear, with a low around 58. North northwest wind around 6 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 61.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 88.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Pittsburg CA
 37.97°N 121.86°W (Elev. 692 ft)
1:34 am PDT Mar 15, 2026
2am PDT Mar 15, 2026-6pm PDT Mar 21, 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