Alta Sierra, California Weather
Alta Sierra, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for Alta Sierra, Nevada County.
Flight conditions near Alta Sierra. Data source: locating…
Soil conditions, frost risk and crop weather for Alta Sierra.
About Alta Sierra, California
Alta Sierra unfolds across rolling hills, a landscape softened by scattered ponderosa pines and the occasional sturdy oak, their branches reaching like gnarled fingers towards a sky that often bleeds into shades of cerulean and dusky rose. It lies 21.5 miles north-east of Lincoln, CA (from Lincoln, CA: bearing 37°T), and is situated 5.4 miles south of Grass Valley. The air here carries a crispness, a clean scent of pine needles and dry earth, particularly potent after a summer rain, and the sunlight, when it filters through the canopy, paints the winding roads in shifting patterns of gold. This is a place where the contours of the land dictate the flow of life, where homes are often set back from the asphalt, suggesting a desire for quietude and a connection to the surrounding wildness. The history of Alta Sierra is deeply entwined with the gold rush era that shaped so much of Nevada County, though its own development as a residential community largely blossomed in the mid-20th century. While the echoes of pickaxes and sluice boxes may have faded, a spirit of self-reliance and a connection to the land persist, often manifesting in the local economy's embrace of small-scale agriculture, artisanal crafts, and services catering to the needs of its residents. The community itself, spread across several miles, lacks a single bustling downtown, instead offering a mosaic of local businesses and gathering spots that reflect the dispersed nature of life in Alta Sierra.
Live animated radar for Alta Sierra 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 | Alta Sierra, Nevada County, California |
| Coordinates | 39.141562°N, 121.053837°W |
| Timezone | Pacific Time (America/Los_Angeles) |
| ZIP Code(s) | 93285, 95949 |
| Area Code | 530 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Alta Sierra, California Weather Page
This page provides live weather conditions and forecasts for Alta Sierra, 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 Alta Sierra includes coordinates 39.141562°N, 121.053837°W, situated in Nevada County. ZIP code 93285, 95949. Telephone area code: 530. 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.
