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

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Overcast

56°F

13°C

Humidity 57%
Wind Speed W 10 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 22 Apr 4:54 am EDT
Extended Forecast for

Johnstown-Cambria County Airport PA

  • Overnight

    Overnight: Showers likely. Mostly cloudy, with a low around 50. Southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 65. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Showers
    Likely then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 47. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 47 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 70. West wind 3 to 8 mph.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54. West wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers before 2pm, then showers and thunderstorms likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 73. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Chance
    Showers then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 2pm. High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.

    Low: 45 °F

    Showers
    Likely

Detailed Forecast

Overnight
Showers likely. Mostly cloudy, with a low around 50. Southwest wind around 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 65. West wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Increasing clouds, with a low around 47. Northwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 70. West wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 54. West wind around 5 mph becoming calm in the evening.
Friday
A chance of showers before 2pm, then showers and thunderstorms likely between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 73. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Saturday
Showers, with thunderstorms also possible after 2pm. High near 61. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Sunday
A chance of showers before 2pm. Partly sunny, with a high near 60. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 64.
Monday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Tuesday
Showers. High near 63. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown-Cambria County Airport PA
 40.31°N 78.84°W (Elev. 2221 ft)
Last Update:
3:06 am EDT Apr 22, 2026
Forecast Valid:
5am EDT Apr 22, 2026-6pm EDT Apr 28, 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