What is today's weather forecast for Greencastle, PA?

Today's forecast for Greencastle shows a high of 66 degrees and a low of 34 degrees Fahrenheit. Mostly cloudy, then gradually becoming sunny, with a high near 66.

What is the 7-day weather forecast for Greencastle, PA?

The 7-day forecast for Greencastle shows highs from 39 to 66 degrees and lows from 25 to 34 degrees Fahrenheit. Expect precipitation on 3 days with chances of 20% or higher.

Will it rain in Greencastle, PA this week?

Yes, rain is possible in Greencastle this week. Precipitation chances: Sunday (50% chance), Monday (50% chance), Tuesday (50% chance).

How accurate is the Greencastle weather forecast?

WeatherForYou provides highly accurate Greencastle forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Greencastle, PA Weather Forecast and Current Conditions

WEATHER ALERTS - Special Weather Statement

Current Conditions From Nearby Local Station

Switch to Metric Units

46°F
Feels Like 46°F

Humidity 99% Dew Point 45°F Wind Calm Barometer 29.83 in.

Solar Rad 49 w/m²

Report from a MADIS/MESONET weather station 0.6 mi. SSE of central Greencastle
at 7:35 AM Wed, Nov 26, 2025

Point Forecast at a Glance

WedNov 26

ThuNov 27

FriNov 28

SatNov 29

SunNov 30

30%

MonDec 1

30%

TueDec 2

50%

7-Day Temperature Trend

Week Ahead Summary

High temperatures drop from 66°F to a low of 39°F, then recover to 39°F by week's end. Some rain possible with at least 3 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 4°F below the historical average for November-December. Normal highs for this period are around 49°F with lows around 31°F.

This Date in Weather History

1888 - A late season hurricane brushed the East Coast with heavy rain and gale force winds. The hurricane passed inside Nantucket and over Cape Cod, then crossed Nova Scotia.

Greencastle, PA 7 Day Weather Forecast Details

Wednesday Nov 26

Day: Mostly cloudy, then gradually becoming sunny, with a high near 66. South wind 6 to 14 mph, with gusts as high as 24 mph.

Night: Increasing clouds, with a low around 34. West wind 11 to 14 mph, with gusts as high as 30 mph.

Thursday Nov 27

Day: Mostly cloudy, with a high near 40. West wind 11 to 16 mph, with gusts as high as 34 mph.

Night: Partly cloudy, with a low around 27. West wind 11 to 14 mph, with gusts as high as 31 mph.

Friday Nov 28

Day: Mostly sunny, with a high near 39. West wind 14 to 18 mph, with gusts as high as 36 mph.

Night: Partly cloudy, with a low around 25.

Saturday Nov 29

Day: Mostly sunny, with a high near 41.

Night: Mostly cloudy, with a low around 28.

Sunday Nov 30

Day: A chance of showers after 1pm. Cloudy, with a high near 44. Chance of precipitation is 30%.

Night: A chance of showers. Cloudy, with a low around 33. Chance of precipitation is 50%.

Monday Dec 1

Day: A chance of showers. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.

Night: A chance of showers. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

Tuesday Dec 2

Day: A chance of showers. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.

About Greencastle, PA

Greencastle is a borough in Franklin County in south-central Pennsylvania, United States. The population was 4,251 at the 2020 census. Greencastle lies within the Cumberland Valley of Pennsylvania.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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