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Hercules, CA 94547 Weather

It is 61°F in Hercules, CA 94547, observed at 6 PM PDT. Tonight: Mostly Cloudy, low 51°F. Hourly and 10-day forecast from the National Weather Service. Times are local (PDT).

Hercules, CA 94547 current weather

61°F

Cloudy

H -- / L 51°Feels like 61°

  • No rain expected in the next 12 hours

Observed at Berkeley Lab (9.2 mi away), 10/29/2026, 6:00 PM PDT

Hourly forecast

NWS, updated 10/29/2026, 3:11 PM PT

  1. Now62°
  2. 7 PM60°
  3. 8 PM58°
  4. 9 PM57°
  5. 10 PM57°
  6. 11 PM56°
  7. 12 AM56°Fri
  8. 1 AM55°
  9. 2 AM55°
  10. 3 AM54°
  11. 4 AM53°
  12. 5 AM52°
  13. 6 AM52°
  14. 7 AM51°
  15. 8 AM51°
  16. 9 AM54°
  17. 10 AM57°
  18. 11 AM60°
  19. 12 PM61°
  20. 1 PM63°
  21. 2 PM64°
  22. 3 PM64°
  23. 4 PM64°
  24. 5 PM63°
  25. 6 PM60°
  26. 7 PM57°
  27. 8 PM55°
  28. 9 PM54°
  29. 10 PM53°
  30. 11 PM53°
  31. 12 AM52°Sat
  32. 1 AM52°
  33. 2 AM51°
  34. 3 AM51°
  35. 4 AM51°
  36. 5 AM50°
  37. 6 AM50°
  38. 7 AM50°
  39. 8 AM50°
  40. 9 AM52°
  41. 10 AM55°
  42. 11 AM58°
  43. 12 PM59°
  44. 1 PM60°
  45. 2 PM61°
  46. 3 PM61°
  47. 4 PM60°
  48. 5 PM60°32%

10-day forecast

Tap a day for details

  • Today10/29Low 51°High

    Tonight: Mostly cloudy, with a low around 51. South southwest wind around 3 mph.

    Mostly Cloudy
  • Fri10/30Low 50°High 65°

    Friday: Sunny. High near 65, with temperatures falling to around 63 in the afternoon. Southwest wind 2 to 7 mph.

    Friday Night: Mostly cloudy, with a low around 50. Southwest wind 2 to 6 mph.

    Sunny
  • Sat10/3141% chance of precipitationLow 48°High 61°

    Saturday: A chance of rain showers after 5pm. Mostly cloudy, with a high near 61. Southwest wind 2 to 7 mph. Chance of precipitation is 30%.

    Saturday Night: A chance of rain showers before 4am. Mostly cloudy, with a low around 48. West wind 2 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Mostly Cloudy then Chance Rain Showers
  • Sun11/1Low 48°High 64°

    Sunday: Sunny, with a high near 64.

    Sunday Night: Mostly clear, with a low around 48.

    Sunny
  • Mon11/2Low 49°High 67°

    Monday: Mostly sunny, with a high near 67.

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

    Mostly Sunny
  • Tue11/311% chance of precipitationLow 50°High 66°

    Tuesday: Mostly sunny, with a high near 66.

    Tuesday Night: Partly cloudy, with a low around 50.

    Mostly Sunny
  • Wed11/415% chance of precipitationLow 49°High 65°

    Wednesday: Mostly sunny, with a high near 65.

    Wednesday Night: A slight chance of rain between 10pm and 4am. Mostly cloudy, with a low around 49.

    Mostly Sunny
  • Thu11/514% chance of precipitationLow High 63°

    Thursday: Partly sunny, with a high near 63.

    Partly Sunny
  • Fri11/6Model blend12% chance of precipitationLow 48°High 67°

    Friday: Mostly sunny. High near 67°. Low that night near 48°.

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

  • Sat11/7Model blendLow 49°High 67°

    Saturday: Mostly sunny. High near 67°. Low that night near 49°.

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

Forecast for 38.009, -122.270 from the NWS MTR office, updated 10/29/2026, 3:11 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 10/29/2026, 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. Now62°Cloudy4%2 mph
  2. 7 PM60°Cloudy5%2 mph
  3. 8 PM58°Cloudy5%2 mph
  4. 9 PM57°Mostly Cloudy4%2 mph
  5. 10 PM57°Mostly Cloudy3%2 mph
  6. 11 PM56°Mostly Cloudy3%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 Hercules, CA 94547 right now?
The latest observation from Berkeley Lab was 61°F, reported at 10/29/2026, 6:00 PM PDT.
Will it rain in Hercules, CA 94547 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 Hercules, CA 94547?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 6 to Nov 7) come from the NOAA National Blend of Models, with highs near 67°F. Model guidance this far out often changes.
What time is sunrise and sunset in Hercules, CA 94547 today?
Sunrise is about 7:32 AM PDT and sunset is about 6:13 PM PDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Hercules, CA 94547?
At Vallejo, the 1991 to 2020 normal high in October is 79°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

UV index today (Rodeo)
3Moderate
AQI forecast tomorrow (Concord)
44GoodPM2.5
AQI forecast tomorrow (Concord)
GoodPM2.5

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

Beaches nearby

EPA BEACON beaches

Sun and moon

Local time, center of the area

Sunrise
7:32 AM
Sunset
6:13 PM
Daylight
10 hr 41 min
Moon
Waning Gibbous 84% lit
First light (civil dawn)
7:04 AM
Last light (civil dusk)
6:40 PM
Moonrise
8:52 PM
Moonset
11:47 AM

Normal October weather

Climate

Normal October high 79°, low 54°, precipitation 1.02 in for the month. 1991 to 2020 normals at Vallejo, 8 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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