Walnut, California Weather
Walnut, California — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for Walnut, Los Angeles County.
Tides, marine forecast and fishing conditions near Walnut. Tide source:
Full aviation weather for Walnut is published on the Brackett Field (KPOC) page, 11 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. 4 airfields within reach of Walnut 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 Walnut: Upland-Cable Airport (KCCB) 19 km · Ontario International Airport (KONT) 25 km · San Bernardino International Airport (KSBD) 58 km
Conditions reported at KPOC describe the airfield itself. Weather 11 km away can differ, particularly in terrain or near the coast. For conditions at Walnut specifically, see the current conditions and forecast above.
About Walnut, California
Walnut rests in a landscape shaped by the gentle sweep of the San Gabriel Valley, where the foothills begin their slow ascent towards distant, sun-bleached mountains. It lies 3.2 miles west of Diamond Bar, CA (from Diamond Bar, CA: bearing 260°T), and is situated 6.9 miles west-south-west of Pomona. Here, the air often carries a dry, clean scent, a mixture of chaparral and the faintest hint of eucalyptus, particularly as the day's heat begins to soften into evening. The terrain is not dramatic, but rather a series of wide, open spaces and rolling plains, marked by the occasional cluster of mature trees that give the area its name, their broad canopies offering a welcome, dappled shade. The quality of light here, especially in the late afternoon, possesses a peculiar clarity, where shadows stretch long and defined across the land, imbuing even the most ordinary structures with a quiet dignity. The history of Walnut is intertwined with the agricultural roots of Southern California, a legacy that still whispers through the wider region, though the focus has shifted. Once a land of citrus groves and ranches, its economy has evolved, now characterized by a blend of residential development and a growing commercial presence, particularly in the realm of education and healthcare. The presence of prestigious educational institutions has drawn a diverse population, fostering a community that values learning and innovation, while also maintaining a connection to its more pastoral past. This duality gives Walnut a distinctive character, a place where the echoes of open fields meet the hum of modern enterprise, creating a subtle but persistent energy.
Live animated radar for Walnut 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 | Walnut, Los Angeles County, California |
| Coordinates | 34.020289°N, 117.865339°W |
| Timezone | Pacific Time (America/Los_Angeles) |
| ZIP Code(s) | 91789, 91788 |
| Area Code | 818, 747 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Walnut, California Weather Page
This page provides live weather conditions and forecasts for Walnut, 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 Walnut includes coordinates 34.020289°N, 117.865339°W, situated in Los Angeles County. ZIP code 91789, 91788. Telephone area code: 818, 747. 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.
