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Grantham, Pennsylvania Weather

Grantham, Pennsylvania — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, soil and crop conditions for Grantham, Cumberland County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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✈️ Aviation Weather

Flight conditions near Grantham. Data source: locating…

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🚜 Agricultural Weather

Soil conditions, frost risk and crop weather for Grantham.

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About Grantham, Pennsylvania

Grantham rests in a landscape shaped by the gentle rise and fall of the land, where rolling hills meet fertile valleys. It lies 10.0 miles south-west of Harrisburg, PA (from Harrisburg, PA: bearing 216°T), and is situated 4.0 miles south of Mechanicsburg. The air here often carries the scent of damp earth and ripening grain, especially in late summer when the sun hangs low and golden. Farmsteads, their silos like stoic sentinels against the wide sky, dot the terrain, interspersed with stands of mature oak and maple that offer a cool, shadowed reprieve. The Susquehanna River, a broad, silver ribbon, flows not far from Grantham, its presence a constant murmur in the background, influencing the very texture of the soil and the growth of the crops that define the local character. The light here, particularly as twilight deepens, can paint the western horizon in hues of rose and violet, a quiet spectacle that stills the day's activity. The history of Grantham is deeply entwined with the agricultural bounty of the region and the steady, persistent spirit of its people. For generations, farming has been the lifeblood, with families cultivating the rich soil, passing down traditions and knowledge. This agricultural heritage is evident in the well-maintained barns and the enduring presence of local markets. Beyond the fields, Grantham has also been a place of quiet industry, its small businesses serving the needs of the surrounding countryside. The nearby waterways have played a role, facilitating transport and commerce in earlier times, and today, their banks offer peaceful places for reflection. The pace of life in Grantham is unhurried, marked by the changing seasons and the enduring connections between neighbors, a place where the past is not forgotten but lives on in the present.

NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Grantham and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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LocationGrantham, Cumberland County, Pennsylvania
Coordinates40.15648°N, 76.996366°W
TimezoneEastern Time (America/New_York)
ZIP Code(s)17027
Area Code215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service

About This Grantham, Pennsylvania Weather Page

This page provides live weather conditions and forecasts for Grantham, Pennsylvania, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. 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 Grantham includes coordinates 40.156480°N, 76.996366°W, situated in Cumberland County. ZIP code 17027. 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. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. 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.