Mount Gretna, Pennsylvania Weather
Mount Gretna, Pennsylvania — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery for Mount Gretna, Lebanon County.
Full aviation weather for Mount Gretna is published on the Deck Airport (K9D4) page, 17 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 Mount Gretna 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 Mount Gretna: Donegal Springs Airpark (KN71) 19 km · Lancaster Airport (KLNS) 20 km · Muir Army Air Field (Fort Indiantown Gap) Airport (KMUI) 22 km · Harrisburg International Airport (KMDT) 26 km · Grimes Airport (K8N1) 32 km
Conditions reported at K9D4 describe the airfield itself. Weather 17 km away can differ, particularly in terrain or near the coast. For conditions at Mount Gretna specifically, see the current conditions and forecast above.
About Mount Gretna, Pennsylvania
Mount Gretna exhales a quiet charm, a place where the rolling hills of Lebanon County soften into a landscape of shaded lanes and modest homes. It lies 7.1 miles south-south-west of Lebanon, PA (from Lebanon, PA: bearing 205°T), and is situated 9.9 miles east-south-east of Hershey. The air here, especially when the afternoon sun begins its slow descent, carries the scent of pine needles and damp earth, a subtle perfume that clings to the abundant oak and maple trees. Paths, worn smooth by generations of walkers, meander through stands of woodland, occasionally opening onto clearings where the light falls in broad, golden swaths. The terrain itself is a gentle rise, a modest elevation that nonetheless offers a sense of elevated peace, a detachment from the flatter, more bustling world beyond its borders. This elevation, in summer, often catches a cooler breeze, a welcome caress on humid days. The history of Mount Gretna is deeply entwined with its identity as a Chautauqua and summer resort, a heritage still palpable in the architecture and the lingering spirit of communal gathering. Victorian cottages, painted in hues of white and pastel, stand as quiet witnesses to a bygone era of intellectual discourse and leisurely pursuits, their gingerbread trim a delicate echo of the past. The local economy, though no longer driven by the grand summer assemblies, still finds its pulse in the seasonal influx of visitors drawn to its tranquil atmosphere and the adjacent lake, a shimmering expanse popular for swimming and boating. The presence of the Pennsylvania National Guard training facility nearby adds a different, more modern cadence to the region, a reminder of the ongoing life that coexists with the historical echoes. Even the small, independent businesses, like the beloved ice cream shop, seem to operate on a different clock, a more deliberate, unhurried rhythm that defines the enduring character of Mount Gretna.
Live animated radar for Mount Gretna 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 | Mount Gretna, Lebanon County, Pennsylvania |
| Coordinates | 40.247593°N, 76.46941°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 17064 |
| 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 Mount Gretna, Pennsylvania Weather Page
This page provides live weather conditions and forecasts for Mount Gretna, 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 Mount Gretna includes coordinates 40.247593°N, 76.469410°W, situated in Lebanon County. ZIP code 17064. 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.
