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Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Partly Cloudy

25°C

77°F

Humidity 85%
Wind Speed S 15 km/h
Barometer 1016.8 mb (30.02 in)
Dewpoint 22°C (72°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 13 Jul 1:53 am EDT
Extended Forecast for

3 Miles NW Mercersburg PA

  • Overnight

    Overnight: A slight chance of showers before 3am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 21. Calm wind. Chance of precipitation is 20%.

    Low: 21 °C

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers, then showers and thunderstorms after noon. Patchy fog before 9am. High near 29. Southeast wind 3 to 8 km/h. Chance of precipitation is 80%. New rainfall amounts between 7.5 mm and 1 cm possible.

    High: 29 °C

    Patchy Fog
    then T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 20. Calm wind. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 cm possible.

    Low: 20 °C

    T-storms
    Likely then
    Showers
    Likely

  • Monday

    Monday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Calm wind. Chance of precipitation is 20%.

    High: 31 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Calm wind.

    Low: 19 °C

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 31. Chance of precipitation is 20%.

    High: 31 °C

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21.

    Low: 21 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Chance of precipitation is 40%.

    High: 31 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °C

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
A slight chance of showers before 3am. Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 21. Calm wind. Chance of precipitation is 20%.
Sunday
A slight chance of showers, then showers and thunderstorms after noon. Patchy fog before 9am. High near 29. Southeast wind 3 to 8 km/h. Chance of precipitation is 80%. New rainfall amounts between 7.5 mm and 1 cm possible.
Sunday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 20. Calm wind. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 cm possible.
Monday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Calm wind. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 19. Calm wind.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 31. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 31. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 20. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 29. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Mercersburg PA
 39.87°N 77.95°W (Elev. 997 m)
Last Update:
11:24 pm EDT Jul 12, 2025
Forecast Valid:
1am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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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