Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Tuesday

In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding Tuesday. Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota Tuesday afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. Extreme heat returns to the southwest U.S. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Mostly Cloudy

73°F

23°C

Humidity	100%
Wind Speed	Calm
Barometer	29.98 in
Dewpoint	73°F (23°C)
Visibility	NA
Last update	7 Jul 12:35 am EDT

More Information:

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

Extended Forecast for

2 Miles SSW Issue MD

Flood Watch July 7, 12:43am until July 7, 02:00am

Click here for hazard details and duration

...

Flood Watch July 7, 12:43am until July 7, 02:00am
NOW until 2:00am Tue
Flood Watch
Overnight
Low: 75 °F
Showers
Likely and
Patchy Fog
Tuesday
High: 83 °F
Slight Chance
T-storms and
Patchy Fog
then Chance
T-storms
Tuesday Night
Low: 73 °F
Showers
Likely
Wednesday
High: 80 °F
Chance
Showers
Wednesday Night
Low: 73 °F
Mostly Cloudy
then Slight
Chance
Showers
Thursday
High: 85 °F
Chance
Showers then
Showers
Likely
Thursday Night
Low: 74 °F
Showers
Likely then
Slight Chance
T-storms
Friday
High: 88 °F
Sunny then
Chance
T-storms

Detailed Forecast

Overnight

Showers likely and possibly a thunderstorm before 1am, then scattered showers and thunderstorms, mainly between 1am and 5am. Patchy fog between 2am and 3am. Otherwise, mostly cloudy, with a low around 75. Northeast wind around 5 mph becoming light and variable. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 9am. Otherwise, partly sunny, with a high near 83. Calm wind. Chance of precipitation is 50%.

Tuesday Night

A chance of showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 73. Northeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 80. Northeast wind around 7 mph. Chance of precipitation is 30%.

Wednesday Night

A slight chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 20%.

Thursday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 74. Chance of precipitation is 60%.

Friday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

Saturday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

Monday

A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 20%.