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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

50°F

10°C

Humidity 63%
Wind Speed SE 5 mph
Barometer 30.37 in (1028.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 10 Oct 7:54 am EDT
Extended Forecast for

Brownstown PA

Wind Advisory October 10, 08:00pm until October 11, 02:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Mostly cloudy, with a high near 68. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 68 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain, mainly after 2am. Low around 53. Southeast wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Slight Chance
    Rain then
    Rain

  • Sunday

    Sunday: Rain and thunderstorms before 2pm, then rain likely and possibly a thunderstorm between 2pm and 3pm, then a chance of rain and thunderstorms after 3pm. High near 63. Southeast wind 14 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Rain

  • Sunday Night

    Sunday Night: Rain and possibly a thunderstorm before 8pm, then rain likely. Low around 57. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Rain

  • Columbus Day

    Columbus Day: A chance of rain before 8am. Mostly cloudy, with a high near 69. Northwest wind 5 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance Rain
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers after 2pm. Mostly sunny, with a high near 75. Chance of precipitation is 40%.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 68. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Tonight
Rain, mainly after 2am. Low around 53. Southeast wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain and thunderstorms before 2pm, then rain likely and possibly a thunderstorm between 2pm and 3pm, then a chance of rain and thunderstorms after 3pm. High near 63. Southeast wind 14 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Rain and possibly a thunderstorm before 8pm, then rain likely. Low around 57. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Columbus Day
A chance of rain before 8am. Mostly cloudy, with a high near 69. Northwest wind 5 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
A chance of showers after 2pm. Mostly sunny, with a high near 75. Chance of precipitation is 40%.
Tuesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Friday
Showers likely. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brownstown PA
 40.34°N 78.95°W (Elev. 1302 ft)
Last Update:
8:41 am EDT Oct 10, 2026
Forecast Valid:
8am EDT Oct 10, 2026-6pm EDT Oct 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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