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

Hazardous Weather Conditions

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fair

90°F

32°C

Humidity 38%
Wind Speed W 6 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 18 May 12:53 pm EDT
Extended Forecast for

Mount Gretna PA

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 92. Southwest wind around 6 mph.

    High: 92 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers between midnight and 1am. Partly cloudy, with a low around 68. South wind 5 to 8 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 92. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Southwest wind around 7 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers and possibly a thunderstorm after 2pm. High near 88. Southwest wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Slight Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Low around 53. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers then
    Slight Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers after 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 92. Southwest wind around 6 mph.
Tonight
A slight chance of showers between midnight and 1am. Partly cloudy, with a low around 68. South wind 5 to 8 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny and hot, with a high near 92. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 70. Southwest wind around 7 mph.
Wednesday
A slight chance of showers, then showers and possibly a thunderstorm after 2pm. High near 88. Southwest wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Low around 53. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
A chance of showers after 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.
Friday Night
Showers. Low around 51. Chance of precipitation is 80%.
Saturday
Showers. High near 68. Chance of precipitation is 80%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Sunday
Showers likely. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Gretna PA
 40.26°N 76.47°W (Elev. 699 ft)
Last Update:
12:36 pm EDT May 18, 2026
Forecast Valid:
1pm EDT May 18, 2026-6pm EDT May 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation