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

Heavy to Excessive Rainfall for the Southwest U.S.; Watching for Possible East Coast Storm

Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Mostly Cloudy

61°F

16°C

Humidity 42%
Wind Speed W 13 G 23 mph
Barometer 30.24 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 8 Oct 2:55 pm EDT
Extended Forecast for

3 Miles N Johnsonburg PA

Freeze Watch October 9, 11:00pm until October 10, 09:00am
Frost Advisory October 9, 01:00am until October 9, 09:00am
Click here for hazard details and duration
Freeze Watch
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly clear, with a low around 32. North wind 5 to 10 mph becoming light in the evening.

    Low: 32 °F

    Mostly Clear
    then Areas
    Frost

  • Thursday

    Thursday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 59. Northeast wind 3 to 6 mph.

    High: 59 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 3am. Otherwise, clear, with a low around 27. Calm wind.

    Low: 27 °F

    Clear then
    Frost

  • Friday

    Friday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 64. Calm wind becoming south 5 to 7 mph in the morning.

    High: 64 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. Light south wind.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain after 2am. Partly cloudy, with a low around 43. Chance of precipitation is 30%.

    Low: 43 °F

    Partly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A chance of rain. Partly sunny, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Tonight
Areas of frost after 3am. Otherwise, mostly clear, with a low around 32. North wind 5 to 10 mph becoming light in the evening.
Thursday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 59. Northeast wind 3 to 6 mph.
Thursday Night
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 27. Calm wind.
Friday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 64. Calm wind becoming south 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 36. Light south wind.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
A chance of rain after 2am. Partly cloudy, with a low around 43. Chance of precipitation is 30%.
Sunday
A chance of rain. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
Columbus Day
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Johnsonburg PA
 41.53°N 78.68°W (Elev. 1499 ft)
Last Update:
2:41 pm EDT Oct 8, 2025
Forecast Valid:
3pm EDT Oct 8, 2025-6pm EDT Oct 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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