Castle Hill, California Weather
Castle Hill, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for Castle Hill, Contra Costa County.
Tides, marine forecast and fishing conditions near Castle Hill. Tide source:
Flight conditions near Castle Hill. Data source: locating…
About Castle Hill, California
Castle Hill rises from the undulating landscape, a place where the San Francisco Bay’s influence is felt in the salty tang of the air and the persistent, soft breeze that whispers through the golden grasses. It lies 2.2 miles south of Walnut Creek, CA (from Walnut Creek, CA: bearing 171°T), and is situated 7.3 miles south-south-west of Concord. The terrain here is a study in subtle shifts, from the gentle slopes that lead towards the water to the more rugged contours that suggest a deeper, more ancient geology. Oak trees, gnarled and enduring, dot the hillsides, their branches reaching out like weathered hands, while the muted greens and browns of the vegetation speak of a climate that balances the dry heat of summer with the cool, damp embrace of winter fog. The light, especially in the late afternoon, has a peculiar quality, a luminescence that seems to filter through the very haze that often softens the distant city skyline, lending a dreamlike cast to the ordinary contours of the land. Historically, Castle Hill’s identity has been shaped by its proximity to the great waterway and the fertile soil that surrounds it, a legacy evident in the remnants of agricultural endeavors that once dominated the scene. While the primary economic engine has shifted, the echoes of that past persist, a quiet undercurrent beneath the modern bustle. Today, the area thrives on a more diverse economy, drawing strength from its residential appeal and its connection to the broader innovation hubs of the Bay Area. A particular charm lies in the way the local character seems to blend the practicalities of modern living with a deep, unspoken appreciation for the natural beauty that has always defined Castle Hill.
Live animated radar for Castle Hill and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Castle Hill, Contra Costa County, California |
| Coordinates | 37.8747°N, 122.0585°W |
| Timezone | Pacific Time (America/Los_Angeles) |
| ZIP Code(s) | 94595 |
| Area Code | 510 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Castle Hill, California Weather Page
This page provides live weather conditions and forecasts for Castle Hill, California, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Castle Hill includes coordinates 37.874700°N, 122.058500°W, situated in Contra Costa County. ZIP code 94595. Telephone area code: 510. Timezone: Pacific Time (America/Los_Angeles).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
