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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Overcast

60°F

16°C

Humidity 84%
Wind Speed W 3 mph
Barometer 30.14 in (1021.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 11 Apr 2:53 am EDT
Extended Forecast for

Chambersburg PA

  • Overnight

    Overnight: Partly cloudy, with a low around 49. Light northwest wind.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 64. North wind around 7 mph.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 56. South wind around 6 mph.

    Low: 56 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 49. Light northwest wind.
Saturday
Sunny, with a high near 64. North wind around 7 mph.
Saturday Night
Mostly clear, with a low around 39. Calm wind.
Sunday
Mostly sunny, with a high near 68. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 56. South wind around 6 mph.
Monday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Partly sunny, with a high near 89.
Wednesday Night
Mostly cloudy, with a low around 65.
Thursday
Partly sunny, with a high near 87.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chambersburg PA
 39.93°N 77.66°W (Elev. 617 ft)
Last Update:
3:06 am EDT Apr 11, 2026
Forecast Valid:
3am EDT Apr 11, 2026-6pm EDT Apr 17, 2026
 
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