Weather for Grantham, PAGrantham, PA Weather & Current Conditions

17027 Weather (Grantham, PA)

Grantham, PA WeatherCurrent Conditions and Weather for Grantham, Pennsylvania
Feedback E-mail the Weather

Quick Weather Clicks

Weather World

Current Conditions

Settings
Mist at Grantham (17027), temperature is 69°F21°C, dew point 69°F21°C, humidity 100%. Wind direction is N at 0 mphat 0 km/h with visibility of 1 mi2 km. Barometric pressure is 30.06 in1018 mb. Last update: 5:37 am.*
*Time is approximately 5:37 am Fri, Sep 18, 2026. Time will be within 15 minutes of current local time. Grantham weather forecast data is updated every 15 minutes.

Weather Quote O' the Day

When a bookworm finally decides to leave the house, perhaps to explore some literary destination in one of her novels, she will be surprised to know that there is a volatile, often antagonistic force in the real world known as the weather. ―Joyce Rachelle
Add a Weather Quote―
Grantham PA Weather - 5:37 am

Grantham Weather Forecast

Weather forecast for: 3 Miles S Mechanicsburg PA
Last Update: 4:23 am EDT Sep 18, 2026
Today: Mostly sunny, with a high near 81. Light northwest wind becoming north 5 to 9 mph in the morning.
Tonight: Partly cloudy, with a low around 53. North wind 3 to 7 mph.
Saturday: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 75. Light and variable wind becoming northeast around 5 mph in the morning.
Saturday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 63. Southeast wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: Showers, with thunderstorms also possible after 2pm. High near 75. Southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 61. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday: A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
Monday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Tuesday: Showers likely. Cloudy, with a high near 63. Chance of precipitation is 60%.
Tuesday Night: Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Wednesday: Showers likely. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Wednesday Night: Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday: A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.

Trending Headlines

Grantham Radar Loop

Grantham Quick Facts

National Two Day Weather Forecast


E-mail the Grantham Weather Forecast

Voice your opinion or tell us about page issues...