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Diablo, CA 94528 Weather

It is 53°F in Diablo, CA 94528, observed at 6:28 PM PDT. Tonight: Partly Cloudy, low 47°F. Hourly and 10-day forecast from the National Weather Service. Times are local (PDT).

Diablo, CA 94528 current weather

53°F

Partly Cloudy

H -- / L 47°Feels like 53°

  • No rain expected in the next 12 hours

Observed at LAS TRAMPAS (5.9 mi away), 10/30/2026, 6:28 PM PDT

Hourly forecast

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

  1. Now57°
  2. 8 PM55°
  3. 9 PM53°
  4. 10 PM51°
  5. 11 PM51°
  6. 12 AM50°Sat
  7. 1 AM50°
  8. 2 AM49°
  9. 3 AM49°
  10. 4 AM48°
  11. 5 AM48°
  12. 6 AM48°
  13. 7 AM48°
  14. 8 AM49°
  15. 9 AM52°
  16. 10 AM56°
  17. 11 AM60°
  18. 12 PM61°
  19. 1 PM62°
  20. 2 PM62°
  21. 3 PM62°
  22. 4 PM62°
  23. 5 PM61°
  24. 6 PM58°
  25. 7 PM54°
  26. 8 PM53°
  27. 9 PM51°
  28. 10 PM50°
  29. 11 PM50°
  30. 12 AM49°Sun
  31. 1 AM49°19%
  32. 1 AM48°23%
  33. 2 AM47°29%
  34. 3 AM47°16%
  35. 4 AM47°
  36. 5 AM46°
  37. 6 AM46°
  38. 7 AM47°
  39. 8 AM50°
  40. 9 AM54°
  41. 10 AM59°
  42. 11 AM61°
  43. 12 PM63°
  44. 1 PM64°
  45. 2 PM65°
  46. 3 PM65°
  47. 4 PM63°
  48. 5 PM60°

10-day forecast

Tap a day for details

  • Today10/30Low 47°High

    Tonight: Partly cloudy, with a low around 47. South wind around 3 mph.

    Partly Cloudy
  • Sat10/3129% chance of precipitationLow 46°High 63°

    Saturday: Mostly cloudy. High near 63, with temperatures falling to around 61 in the afternoon. Southwest wind 2 to 6 mph.

    Saturday Night: A slight chance of rain showers between 1am and 2am, then a chance of rain showers and patchy fog between 2am and 3am, then patchy fog and a slight chance of rain showers between 3am and 4am. Mostly cloudy, with a low around 46. West southwest wind around 2 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Mostly Cloudy
  • Sun11/1Low 44°High 65°

    Sunday: Mostly sunny, with a high near 65. West northwest wind around 5 mph.

    Sunday Night: Mostly clear, with a low around 44. North northeast wind 0 to 3 mph.

    Mostly Sunny
  • Mon11/2Low 45°High 65°

    Monday: Mostly sunny, with a high near 65.

    Monday Night: Mostly cloudy, with a low around 45.

    Mostly Sunny
  • Tue11/311% chance of precipitationLow 47°High 66°

    Tuesday: Mostly sunny, with a high near 66.

    Tuesday Night: Mostly cloudy, with a low around 47.

    Mostly Sunny
  • Wed11/414% chance of precipitationLow 48°High 66°

    Wednesday: Mostly sunny, with a high near 66.

    Wednesday Night: Patchy fog between 1am and 4am. Partly cloudy, with a low around 48.

    Mostly Sunny
  • Thu11/514% chance of precipitationLow 47°High 64°

    Thursday: Mostly sunny, with a high near 64.

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

    Mostly Sunny
  • Fri11/610% chance of precipitationLow High 66°

    Friday: Mostly sunny, with a high near 66.

    Mostly Sunny
  • Sat11/7Model blendLow 50°High 71°

    Saturday: Mostly sunny. High near 71°. Low that night near 50°.

    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 51°High 69°

    Sunday: Partly cloudy. High near 69°. Low that night near 51°.

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

Forecast for 37.842, -121.959 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 KCCR (Concord/Buchanan Fld, 12 mi), model run 10/30/2026, 1:00 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. Now57°Partly Cloudy1%2 mph
  2. 8 PM55°Partly Cloudy1%1 mph
  3. 9 PM53°Partly Cloudy1%1 mph
  4. 10 PM51°Partly Cloudy1%1 mph
  5. 11 PM51°Partly Cloudy1%2 mph
  6. 12 AM50°Partly Cloudy1%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 Diablo, CA 94528 right now?
The latest observation from LAS TRAMPAS was 53°F, reported at 10/30/2026, 6:28 PM PDT.
Will it rain in Diablo, CA 94528 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 Diablo, CA 94528?
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 69°F to 71°F. Model guidance this far out often changes.
What time is sunrise and sunset in Diablo, CA 94528 today?
Sunrise is about 7:31 AM PDT and sunset is about 6:11 PM PDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Diablo, CA 94528?
At Mt Diablo Junction, the 1991 to 2020 normal high in October is 72°F and the normal low is 54°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.03 in
Snow
0.00 in
Ice
0.00 in

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 (Concord)
50GoodPM2.5
AQI forecast tomorrow (Concord)
44GoodPM2.5

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
7:31 AM
Sunset
6:11 PM
Daylight
10 hr 40 min
Moon
Waning Gibbous 75% lit
First light (civil dawn)
7:04 AM
Last light (civil dusk)
6:38 PM
Moonrise
10:02 PM
Moonset
12:46 PM

Normal October weather

Climate

Normal October high 72°, low 54°, precipitation 1.19 in for the month. 1991 to 2020 normals at Mt Diablo Junction, 3 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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