Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

A Few Clouds

82°F

28°C

Humidity	70%
Wind Speed	Vrbl 3 mph
Barometer	30.09 in
Dewpoint	71°F (22°C)
Visibility	NA
Heat Index	86°F (30°C)
Last update	4 Aug 12:15 pm EDT

More Information:

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

Extended Forecast for

Charlotte Hall MD

This Afternoon
High: 85 °F
Partly Sunny
Tonight
Low: 70 °F
Chance
Showers then
Showers
Likely
Wednesday
High: 87 °F
Showers
Likely
Wednesday Night
Low: 72 °F
Chance
T-storms then
Partly Cloudy
Thursday
High: 90 °F
Mostly Sunny
Thursday Night
Low: 74 °F
Mostly Clear
Friday
High: 90 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 72 °F
Chance
T-storms
Saturday
High: 90 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

This Afternoon

Partly sunny, with a high near 85. Northeast wind around 8 mph.

Tonight

A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then showers likely after 5am. Cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 87. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 72. South wind around 6 mph. Chance of precipitation is 30%.

Thursday

Mostly sunny, with a high near 90. South wind 8 to 11 mph.

Thursday Night

Mostly clear, with a low around 74.

Friday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.

Friday Night

A chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

Saturday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.

Saturday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.