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

Washington County Airport (KAFJ)

Lat: 40.14°NLon: 80.29°WElev: 1184ft.

A Few Clouds

78°F

26°C

Humidity 52%
Wind Speed NW 6 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Aug 5:56 pm EDT
Extended Forecast for

Clarksville PA

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, increasing clouds, with a high near 80. Calm wind becoming west 5 to 8 mph in the morning.

    High: 80 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Partly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, increasing clouds, with a high near 80. Calm wind becoming west 5 to 8 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 58. Calm wind.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Sunday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Clarksville PA
 39.97°N 80.05°W (Elev. 997 ft)
Last Update:
2:21 pm EDT Aug 18, 2026
Forecast Valid:
6pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation