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Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

61°F

16°C

Humidity 93%
Wind Speed S 14 G 23 mph
Barometer 29.83 in (1009.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 11 Mar 10:54 am EDT
Extended Forecast for

3 Miles N Summerhill PA

  • Today

    Today: Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. Some of the storms could be severe. High near 71. Southwest wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 71 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Southwest wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 30 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 37. Northwest wind around 18 mph, with gusts as high as 40 mph.

    High: 37 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. West wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of snow before 11am, then a slight chance of rain and snow between 11am and 2pm, then a slight chance of rain after 2pm. Mostly cloudy, with a high near 49. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: A slight chance of rain and snow before 11pm, then a slight chance of snow between 11pm and 2am. Partly cloudy, with a low around 28. Breezy. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow and
    Breezy then
    Slight Chance
    Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 55. Breezy.

    High: 55 °F

    Cloudy then
    Mostly Cloudy
    and Breezy

Detailed Forecast

Today
Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. Some of the storms could be severe. High near 71. Southwest wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain showers before 5am, then a chance of rain and snow showers. Some thunder is also possible. Low around 30. Southwest wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 37. Northwest wind around 18 mph, with gusts as high as 40 mph.
Thursday Night
Mostly clear, with a low around 28. West wind 6 to 10 mph, with gusts as high as 21 mph.
Friday
A slight chance of snow before 11am, then a slight chance of rain and snow between 11am and 2pm, then a slight chance of rain after 2pm. Mostly cloudy, with a high near 49. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of rain and snow before 11pm, then a slight chance of snow between 11pm and 2am. Partly cloudy, with a low around 28. Breezy. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Mostly cloudy, with a high near 55. Breezy.
Sunday Night
Showers, mainly after 2am. Low around 35. Breezy. Chance of precipitation is 90%.
Monday
Rain and snow showers. High near 46. Breezy. Chance of precipitation is 80%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 18. Breezy. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Summerhill PA
 40.42°N 78.77°W (Elev. 2182 ft)
Last Update:
10:36 am EDT Mar 11, 2026
Forecast Valid:
11am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation