National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Flooding Threat in the Ohio Valley

Gulf moisture will combine with a cold front and will bring heavy rain and scattered flash flooding over parts of the Mid-South into the Ohio Valley through the morning and the Ohio Valley and Central Appalachians on Tuesday. Showers and thunderstorms, some severe, are expected over the Southern Rockies/Southern High Plains on Tuesday. Read More >

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fair

63°F

17°C

Humidity 90%
Wind Speed Calm
Barometer 30.22 in (1023.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 6 Oct 11:53 pm EDT
Extended Forecast for

Marietta PA

  • Overnight

    Overnight: Mostly clear, with a low around 60. South wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 81. South wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Showers, with thunderstorms also possible after 2am. Low around 57. South wind 8 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 70. North wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 70 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. North wind 7 to 10 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 60. South wind around 6 mph.
Tuesday
Partly sunny, with a high near 81. South wind 6 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Showers, with thunderstorms also possible after 2am. Low around 57. South wind 8 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 70. North wind 11 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Mostly clear, with a low around 42. North wind 7 to 10 mph.
Thursday
Sunny, with a high near 63.
Thursday Night
Clear, with a low around 38.
Friday
Sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 50.
Columbus Day
Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marietta PA
 40.06°N 76.53°W (Elev. 299 ft)
Last Update:
11:41 pm EDT Oct 6, 2025
Forecast Valid:
12am EDT Oct 7, 2025-6pm EDT Oct 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation