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

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

67°F

19°C

Humidity 66%
Wind Speed SW 6 mph
Barometer 30.19 in (1020.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 May 4:54 am EDT
Extended Forecast for

Lilly PA

  • Today

    Today: A chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Sunny then
    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Southwest wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. West wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southwest wind around 9 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 76. West wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers before 2pm. Partly sunny, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 88. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Southwest wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 87. West wind 8 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southwest wind around 9 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 76. West wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely before 8pm. Mostly cloudy, with a low around 46. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of showers before 2pm. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 47.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Friday Night
Showers. Low around 51. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 67. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm. 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 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lilly PA
 40.42°N 78.62°W (Elev. 1906 ft)
Last Update:
4:11 am EDT May 18, 2026
Forecast Valid:
5am EDT May 18, 2026-6pm EDT May 24, 2026
 
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