Chatham, Pennsylvania Weather
Chatham, Pennsylvania — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Chatham, Chester County.
Full aviation weather for Chatham is published on the New Garden Airport (KN57) page, 5 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 Chatham 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 Chatham: Chester County G O Carlson Airport (KMQS) 14 km · Brandywine Regional Airport (KOQN) 26 km · Wilmington Airport (KILG) 27 km · Cecil County Airport (K58M) 31 km · Summit Airport (KEVY) 38 km
Conditions reported at KN57 describe the airfield itself. Weather 5 km away can differ, particularly in terrain or near the coast. For conditions at Chatham specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Chatham.
About Chatham, Pennsylvania
Chatham rests in a cradle of rolling Chester County farmland, where the gentle slopes of the Piedmont begin their westward ascent. It lies 12.3 miles north-north-west of Newark, DE (from Newark, DE: bearing 342°T), and is situated 8.0 miles north-west of Hockessin. The air here, especially in the late afternoon, carries the faint, sweet scent of ripening corn and the richer, earthier perfume of damp soil after a summer shower. Fields of emerald green, punctuated by the deeper hues of mature woodlands, stretch towards a sky that often blazes with the molten gold of sunset, casting long, languid shadows across the landscape. Barns, weathered to a soft, silvery grey, stand as stoic sentinels against the horizon, their red roofs a vibrant counterpoint to the verdant expanse. This is a place where the land itself seems to breathe, a quiet testament to generations of cultivation. The story of Chatham is etched not in grand monuments, but in the enduring agricultural spirit that has shaped its identity for centuries. Early settlers, drawn by the fertile soil and the proximity of the Brandywine Creek, established a community deeply rooted in the land’s bounty. While the precise origins of its name are a matter of local lore, the enduring legacy is one of hard work and a quiet prosperity derived from farming and, in earlier times, the milling industry that harnessed the creek’s power. Today, the legacy continues, with Chatham maintaining a character that is both distinctly rural and comfortably connected, a place where the pace of life still allows for the contemplation of the changing seasons and the enduring rhythm of the agricultural year.
Live animated radar for Chatham 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 | Chatham, Chester County, Pennsylvania |
| Coordinates | 39.853442°N, 75.821609°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 19390, 19318 |
| Area Code | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Chatham, Pennsylvania Weather Page
This page provides live weather conditions and forecasts for Chatham, Pennsylvania, 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 Chatham includes coordinates 39.853442°N, 75.821609°W, situated in Chester County. ZIP code 19390, 19318. Telephone area code: 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878. Timezone: Eastern Time (America/New_York).
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.
