Heat Wave and Severe Thunderstorms this Independence Day
A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >
Hazardous Weather Conditions
Current conditions at
St Marys County Airport (K2W6)
Lat: 38.32° N Lon: 76.55° W Elev: 144 ft.
A Few Clouds
78°F
26°C
| Humidity | 95% |
| Wind Speed | Calm |
| Barometer | 29.95 in |
| Dewpoint | 76°F (24°C) |
| Visibility | NA |
| Heat Index | 81°F (27°C) |
| Last update | 5 Jul 7:35 am EDT |
Detailed forecast for
Charles County
Rest Of The Overnight
Partly cloudy with isolated showers and thunderstorms. Lows in the mid 70s. South winds around 5 mph. Chance of rain 20 percent.
Today
Sunny, hot with highs in the mid 90s. Southeast winds 5 to 10 mph. Heat index values up to 108.
Tonight
Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 70s. Southeast winds 5 to 10 mph, becoming northeast after midnight. Chance of rain 70 percent.
Monday
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs around 90. Northeast winds around 5 mph. Chance of rain 50 percent.
Monday Night
Showers. Thunderstorms likely, mainly in the evening. Lows in the lower 70s. East winds around 5 mph. Chance of rain 90 percent.
Tuesday
Showers likely with a chance of thunderstorms. Highs in the mid 80s. Chance of rain 70 percent.
Tuesday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.
Wednesday
Partly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 30 percent.
Wednesday Night
Partly cloudy. Lows around 70.
Thursday
Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent.
Thursday Night
Partly cloudy. Lows in the lower 70s.
Friday
Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent.
Friday Night
Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent.
Saturday
Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.
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