Alta Sierra, California Weather
Alta Sierra, California — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Alta Sierra, Nevada County.
Full aviation weather for Alta Sierra is published on the Nevada County Airport (KGOO) page, 10 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Alta Sierra have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Alta Sierra: Auburn Municipal Airport (KAUN) 21 km · Beale Air Force Base (KBAB) 33 km · Blue Canyon Nyack Airport (KBLU) 33 km · Lincoln Regional Karl Harder Field (KLHM) 36 km · Yuba County Airport (KMYV) 45 km
Conditions reported at KGOO describe the airfield itself. Weather 10 km away can differ, particularly in terrain or near the coast. For conditions at Alta Sierra specifically, see the current conditions and forecast above.
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 | September 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, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. 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. 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.
