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Knightsen, CA 94548 Weather

It is 56°F in Knightsen, CA 94548, observed at 8:28 PM PDT. Tonight: Partly Cloudy, low 52°F. Hourly and 10-day forecast from the National Weather Service. Times are local (PDT).

Knightsen, CA 94548 current weather

56°F

Mostly Clear

H -- / L 52°Feels like 56°

  • No rain expected in the next 12 hours

Observed at BLACK DIAMOND (12.6 mi away), 10/30/2026, 8:28 PM PDT

Hourly forecast

NWS, updated 10/30/2026, 1:26 PM PT

  1. Now60°
  2. 9 PM59°
  3. 10 PM58°
  4. 11 PM56°
  5. 12 AM56°Sat
  6. 1 AM55°
  7. 2 AM54°
  8. 3 AM53°
  9. 4 AM53°
  10. 5 AM53°
  11. 6 AM52°
  12. 7 AM52°
  13. 8 AM53°
  14. 9 AM56°
  15. 10 AM60°
  16. 11 AM62°
  17. 12 PM63°
  18. 1 PM64°
  19. 2 PM65°
  20. 3 PM65°
  21. 4 PM65°
  22. 5 PM64°
  23. 6 PM62°
  24. 7 PM59°
  25. 8 PM58°
  26. 9 PM57°
  27. 10 PM56°
  28. 11 PM55°
  29. 12 AM54°Sun
  30. 1 AM54°13%
  31. 1 AM53°19%
  32. 2 AM52°27%
  33. 3 AM52°17%
  34. 4 AM51°
  35. 5 AM50°
  36. 6 AM50°
  37. 7 AM51°
  38. 8 AM54°
  39. 9 AM58°
  40. 10 AM61°
  41. 11 AM64°
  42. 12 PM65°
  43. 1 PM66°
  44. 2 PM67°
  45. 3 PM67°
  46. 4 PM66°
  47. 5 PM63°
  48. 6 PM60°

10-day forecast

Tap a day for details

  • Today10/30Low 52°High

    Tonight: Partly cloudy, with a low around 52. Southwest wind around 3 mph.

    Partly Cloudy
  • Sat10/3127% chance of precipitationLow 50°High 65°

    Saturday: Mostly cloudy, with a high near 65. West southwest wind 1 to 6 mph.

    Saturday Night: A chance of rain showers between 1am and 4am. Partly cloudy, with a low around 50. West wind 1 to 5 mph. Chance of precipitation is 30%.

    Mostly Cloudy
  • Sun11/1Low 47°High 67°

    Sunday: Sunny, with a high near 67. West northwest wind 3 to 9 mph.

    Sunday Night: Mostly clear, with a low around 47. West northwest wind 2 to 7 mph.

    Sunny
  • Mon11/2Low 47°High 67°

    Monday: Mostly sunny, with a high near 67.

    Monday Night: Partly cloudy, with a low around 47.

    Mostly Sunny
  • Tue11/3Low 49°High 67°

    Tuesday: Mostly sunny, with a high near 67.

    Tuesday Night: Mostly cloudy, with a low around 49.

    Mostly Sunny
  • Wed11/4Low 49°High 68°

    Wednesday: Mostly sunny, with a high near 68.

    Wednesday Night: Patchy fog after 5am. Partly cloudy, with a low around 49.

    Mostly Sunny
  • Thu11/511% chance of precipitationLow 51°High 67°

    Thursday: Patchy fog before 8am. Mostly sunny, with a high near 67.

    Thursday Night: Partly cloudy, with a low around 51.

    Patchy Fog then Mostly Sunny
  • Fri11/610% chance of precipitationLow High 68°

    Friday: Mostly sunny, with a high near 68.

    Mostly Sunny
  • Sat11/7Model blendLow 52°High 70°

    Saturday: Mostly sunny. High near 70°. Low that night near 52°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blendLow 53°High 72°

    Sunday: Mostly sunny. High near 72°. Low that night near 53°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 37.976, -121.655 from the NWS MTR office, updated 10/30/2026, 1:26 PM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KC83 (Byron Arpt, 10 mi), model run 10/30/2026, 7:00 PM PDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now60°Mostly Clear1%3 mph
  2. 9 PM59°Partly Cloudy1%2 mph
  3. 10 PM58°Partly Cloudy1%2 mph
  4. 11 PM56°Partly Cloudy1%2 mph
  5. 12 AM56°Mostly Cloudy1%2 mph
  6. 1 AM55°Partly Cloudy0%2 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Knightsen, CA 94548 right now?
The latest observation from BLACK DIAMOND was 56°F, reported at 10/30/2026, 8:28 PM PDT.
Will it rain in Knightsen, CA 94548 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Knightsen, CA 94548?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 7 to Nov 8) come from the NOAA National Blend of Models, with highs of 70°F to 72°F. Model guidance this far out often changes.
What time is sunrise and sunset in Knightsen, CA 94548 today?
Sunrise is about 7:30 AM PDT and sunset is about 6:09 PM PDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Knightsen, CA 94548?
At Antioch Pumping Plt #3, the 1991 to 2020 normal high in October is 78°F and the normal low is 54°F.

Nearby hazards

California hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast tomorrow (Rio Vista)
34GoodOzone
AQI forecast tomorrow (Rio Vista)
35GoodOzone

UV index guide · Air quality

Drought

By county

Contra Costa County, week of 10/27/2026

No drought or abnormal dryness in this county.

Tides nearby

NOAA tide stations

Sun and moon

Local time, center of the area

Sunrise
7:30 AM
Sunset
6:09 PM
Daylight
10 hr 39 min
Moon
Waning Gibbous 74% lit
First light (civil dawn)
7:03 AM
Last light (civil dusk)
6:36 PM
Moonrise
10 PM
Moonset
12:45 PM

Normal October weather

Climate

Normal October high 78°, low 54°, precipitation 0.42 in for the month. 1991 to 2020 normals at Antioch Pumping Plt #3, 5 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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