Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Thunderstorm Heavy Rain Fog and Breezy

71°F

22°C

Humidity	94%
Wind Speed	W 23 G 37 mph
Barometer	30.10 in (1019.7 mb)
Dewpoint	69°F (21°C)
Visibility	0.50 mi
Last update	31 Aug 6:53 pm EDT

More Information:

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

Extended Forecast for

Williamsport MD

Tonight
Low: 70 °F
Slight Chance
T-storms then
Mostly Cloudy
Tuesday
High: 95 °F
Partly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 73 °F
Slight Chance
T-storms
Wednesday
High: 95 °F
Partly Sunny
then Slight
Chance
T-storms
Wednesday Night
Low: 73 °F
Chance
T-storms
Thursday
High: 96 °F
Mostly Sunny
Thursday Night
Low: 73 °F
Slight Chance
T-storms
Friday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 66 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70. Light south wind. Chance of precipitation is 20%.

Tuesday

A slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 95. Heat index values as high as 102. Calm wind becoming west 5 to 9 mph in the afternoon. Chance of precipitation is 20%.

Tuesday Night

A slight chance of showers and thunderstorms, mainly between midnight and 2am. Partly cloudy, with a low around 73. Light west wind. Chance of precipitation is 20%.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 101. Light west wind. Chance of precipitation is 20%.

Wednesday Night

A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 73. Light south wind. Chance of precipitation is 40%.

Thursday

Mostly sunny, with a high near 96.

Thursday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 20%.

Friday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 84.

Saturday Night

Mostly clear, with a low around 61.