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

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

84°F

29°C

Humidity 61%
Wind Speed W 13 G 23 mph
Barometer 30.23 in (1021.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 22 Jun 12:54 pm EDT
Extended Forecast for

2 Miles NW Brownstown PA

Heat Advisory until June 25, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until June 25, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 72. Light southwest wind.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 94. Heat index values as high as 102. Calm wind becoming west around 6 mph in the afternoon.

    High: 94 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Light southwest wind.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 94. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 94 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 40%.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 92. Heat index values as high as 102. West wind around 8 mph.
Tonight
Mostly clear, with a low around 72. Light southwest wind.
Monday
Sunny and hot, with a high near 94. Heat index values as high as 102. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 72. Light southwest wind.
Tuesday
Sunny and hot, with a high near 94. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Thursday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Friday
Showers likely. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
Showers likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Brownstown PA
 40.34°N 78.95°W (Elev. 1302 ft)
Last Update:
12:57 pm EDT Jun 22, 2025
Forecast Valid:
1pm EDT Jun 22, 2025-6pm EDT Jun 28, 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