Monitoring Tsunami Impacts Across the Pacific; Air Quality Concerns; Dangerous Heat; Critical Fire Weather for the West

Tsunami impacts continue for portions of the Pacific basin. Wildfire smoke causes unhealthy air in Midwest to Great Lakes. Heat dome spans Mississippi Valley to Mid-Atlantic with excessive heat warnings and advisories. Critical fire weather in Great Basin to Pacific Northwest (dry thunderstorms). Cold front spawns severe storms/heavy rain in Central U.S. today, shifts to East Coast Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

A Few Clouds

88°F

31°C

Humidity	57%
Wind Speed	W 5 mph
Barometer	30.05 in (1017.6 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	94°F (34°C)
Last update	30 Jul 10:53 am EDT

More Information:

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

Extended Forecast for

Boonsboro MD

Heat Advisory until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until July 30, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Today
High: 98 °F
Slight Chance
T-storms
Tonight
Low: 75 °F
Slight Chance
T-storms then
Mostly Clear
Thursday
High: 92 °F
Chance
T-storms then
T-storms
Thursday Night
Low: 69 °F
T-storms then
Showers
Likely
Friday
High: 78 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 62 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday
High: 80 °F
Sunny
Saturday Night
Low: 59 °F
Mostly Clear

Detailed Forecast

Today

A slight chance of showers and thunderstorms between 3pm and 4pm. Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

Tonight

A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 20%.

Thursday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 92. Heat index values as high as 103. East wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 69. Northeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 78. Northeast wind around 10 mph. Chance of precipitation is 50%.

Friday Night

A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.

Saturday

Sunny, with a high near 80.

Saturday Night

Mostly clear, with a low around 59.

Sunday

Sunny, with a high near 83.

Sunday Night

Partly cloudy, with a low around 60.

Monday

Mostly sunny, with a high near 85.

Monday Night

Partly cloudy, with a low around 62.