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

Du Bois - Jefferson County Airport (KDUJ)

Lat: 41.18°NLon: 78.89°WElev: 1804ft.

Overcast

65°F

18°C

Humidity 93%
Wind Speed W 12 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Oct 12:53 pm EDT
Extended Forecast for

Saint Marys PA

  • This Afternoon

    This Afternoon: Isolated showers before 2pm. Cloudy, with a high near 70. West wind around 9 mph. Chance of precipitation is 20%.

    High: 70 °F

    Isolated
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Northwest wind around 6 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 65. Northeast wind 3 to 6 mph.

    High: 65 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 11pm. Low around 51. Southeast wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 66. Southwest wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Rain showers likely before 5am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 29 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 10pm. Otherwise, mostly clear, with a low around 28.

    Low: 28 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 10am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Frost then
    Sunny

Detailed Forecast

This Afternoon
Isolated showers before 2pm. Cloudy, with a high near 70. West wind around 9 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 43. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 65. Northeast wind 3 to 6 mph.
Thursday Night
A chance of showers, then showers and possibly a thunderstorm after 11pm. Low around 51. Southeast wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 66. Southwest wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain showers likely before 5am, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Widespread frost, mainly after 10pm. Otherwise, mostly clear, with a low around 28.
Sunday
Widespread frost before 10am. Otherwise, sunny, with a high near 59.
Sunday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 30.
Monday
Widespread frost. Otherwise, mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys PA
 41.43°N 78.54°W (Elev. 1709 ft)
Last Update:
8:06 am EDT Oct 14, 2026
Forecast Valid:
1pm EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation