Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

58°F

14°C

Humidity	60%
Wind Speed	S 8 mph
Barometer	29.96 in (1015.2 mb)
Dewpoint	44°F (7°C)
Visibility	10.00 mi
Last update	13 May 3:53 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles SSW Mercersburg PA

Today
High: 71 °F
Chance
Showers then
Showers
Tonight
Low: 48 °F
Showers then
Partly Cloudy
Thursday
High: 62 °F
Mostly Sunny
Thursday Night
Low: 48 °F
Partly Cloudy
Friday
High: 72 °F
Mostly Sunny
Friday Night
Low: 51 °F
Partly Cloudy
Saturday
High: 84 °F
Mostly Sunny
then Chance
Showers
Saturday Night
Low: 59 °F
Chance
Showers then
Partly Cloudy
Sunday
High: 91 °F
Mostly Sunny

Detailed Forecast

Today

Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 71. South wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Low around 48. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

Mostly sunny, with a high near 62. Northwest wind 8 to 13 mph, with gusts as high as 23 mph.

Thursday Night

Partly cloudy, with a low around 48. Northwest wind around 9 mph, with gusts as high as 21 mph.

Friday

Mostly sunny, with a high near 72. Northwest wind 9 to 11 mph, with gusts as high as 24 mph.

Friday Night

Partly cloudy, with a low around 51.

Saturday

A chance of showers after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

Saturday Night

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