Mercersburg, Pennsylvania Weather
Mercersburg, Pennsylvania — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery for Mercersburg, Franklin County.
Full aviation weather for Mercersburg is published on the Hagerstown Regional Richard A Henson Field (KHGR) page, 20 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 Mercersburg 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 Mercersburg: Franklin County Regional Airport (KN68) 27 km · Eastern WV Regional Airport/Shepherd Field (KMRB) 48 km · Gettysburg Regional Airport (KW05) 54 km
Conditions reported at KHGR describe the airfield itself. Weather 20 km away can differ, particularly in terrain or near the coast. For conditions at Mercersburg specifically, see the current conditions and forecast above.
About Mercersburg, Pennsylvania
Mercersburg rests in a broad valley, a place where the rolling hills of Franklin County begin their gentle ascent towards the Allegheny Mountains. It lies 16.1 miles north-west of Hagerstown, MD (from Hagerstown, MD: bearing 323°T), and is situated 9.7 miles west-north-west of Greencastle. The land here is a quilt of farms, the rich, dark soil yielding corn, soybeans, and tobacco under a sky that often stretches wide and pale, especially in the late afternoon when a soft, golden light bleeds across the fields. The air, particularly in autumn, carries a faint, sweet scent of drying leaves and distant woodsmoke, a tangible presence of the season. The Mercersburg Creek, a modest ribbon of water, winds its way through the periphery, its banks fringed with willows and sycamores, offering a quiet murmur that underscores the placid character of the landscape. The history of Mercersburg is deeply entwined with the agricultural heritage of this fertile region, a legacy that continues to shape its local economy. Founded in the late 18th century, it grew as a crossroads for farmers bringing their produce to market, a tradition that persists with weekend farmers' markets offering the bounty of the surrounding farms. The town boasts a notable connection to education through Mercersburg Academy, a prestigious preparatory school whose historic buildings lend a dignified presence to the town's western edge. This academic institution has drawn individuals of note over the years, contributing a distinct cultural current to the otherwise agrarian rhythm of life in Mercersburg, a place where the past feels not so much buried as comfortably settled into the present.
Live animated radar for Mercersburg 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 | Mercersburg, Franklin County, Pennsylvania |
| Coordinates | 39.82787°N, 77.903332°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 17236 |
| 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 Mercersburg, Pennsylvania Weather Page
This page provides live weather conditions and forecasts for Mercersburg, 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 Mercersburg includes coordinates 39.827870°N, 77.903332°W, situated in Franklin County. ZIP code 17236. 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.
