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

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

79°F

26°C

Humidity 60%
Wind Speed SW 9 mph
Barometer 29.94 in (1014.2 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 14 Oct 1:53 pm EDT
Extended Forecast for

Saint Thomas PA

  • This Afternoon

    This Afternoon: Isolated showers between 3pm and 5pm, then isolated showers and thunderstorms after 5pm. Partly sunny, with a high near 84. West wind around 8 mph. Chance of precipitation is 20%.

    High: 84 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 8pm, then isolated showers between 8pm and midnight. Mostly cloudy, with a low around 56. North wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 11am. Partly sunny, with a high near 65. Northeast wind around 6 mph becoming calm in the morning. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly between 11pm and 2am. Cloudy, with a low around 56. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers before 8am, then showers likely after 2pm. Partly sunny, with a high near 79. South wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 79 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely before 8pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Showers
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, clear, with a low around 35.

    Low: 35 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Frost then
    Sunny

Detailed Forecast

This Afternoon
Isolated showers between 3pm and 5pm, then isolated showers and thunderstorms after 5pm. Partly sunny, with a high near 84. West wind around 8 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms before 8pm, then isolated showers between 8pm and midnight. Mostly cloudy, with a low around 56. North wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers after 11am. Partly sunny, with a high near 65. Northeast wind around 6 mph becoming calm in the morning. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers likely, mainly between 11pm and 2am. Cloudy, with a low around 56. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers before 8am, then showers likely after 2pm. Partly sunny, with a high near 79. South wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely before 8pm. Mostly cloudy, with a low around 43. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 55.
Saturday Night
Areas of frost after 3am. Otherwise, clear, with a low around 35.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Thomas PA
 39.92°N 77.8°W (Elev. 610 ft)
Last Update:
2:05 pm EDT Oct 14, 2026
Forecast Valid:
2pm EDT Oct 14, 2026-6pm EDT Oct 20, 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