Summer Heat Continues; Severe Weather For Northeast

A large ridge of high pressure continues to bring summer heat and humidity to several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, southern Plains, Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, severe thunderstorms are forecast for the Northeast and northern Mid-Atlantic today. Read More >

Hazardous Weather Conditions

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Current conditions at

College Park Airport (KCGS)

Lat: 38.98°NLon: 76.92°WElev: 49ft.

Mostly Cloudy

32°C

90°F

Humidity	48%
Wind Speed	S 7 km/h
Barometer	29.87 in
Dewpoint	19°C (67°F)
Visibility	16 km
Heat Index	34°C (94°F)
Last update	21 Aug 4:03 pm EDT

More Information:

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

Extended Forecast for

Chevy Chase MD

Severe T-storm Watch until August 21, 10:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch until August 21, 10:00pm

NOW until
10:00pm Wed

Severe T-storm Watch
This
Afternoon

Severe
Thunderstorms
High: 32 °C
Tonight

Severe
Thunderstorms
and Patchy
Fog
Low: 23 °C
Thursday

Patchy Fog
then Isolated
T-storms
High: 32 °C
Thursday
Night

Scattered
T-storms
Low: 21 °C
Friday

Chance
Showers then
Chance
T-storms
High: 27 °C
Friday
Night

Chance
T-storms
Low: 18 °C
Saturday

Mostly Sunny
High: 27 °C
Saturday
Night

Mostly Clear
Low: 17 °C

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms. Some storms could be severe, with large hail and damaging winds. Partly sunny, with a high near 32. Southwest wind around 14 km/h. Chance of precipitation is 50%.

Tonight

Scattered showers and thunderstorms, mainly before 11pm. Some storms could be severe, with large hail and damaging winds. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 23. Southwest wind 5 to 8 km/h. Chance of precipitation is 40%.

Thursday

Isolated showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 32. West wind 8 to 11 km/h. Chance of precipitation is 20%.

Thursday Night

Scattered showers and thunderstorms. Mostly cloudy, with a low around 21. West wind 5 to 11 km/h. Chance of precipitation is 50%.

Friday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 27. North wind around 10 km/h. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 18. Chance of precipitation is 40%.

Saturday

Mostly sunny, with a high near 27.

Saturday Night

Mostly clear, with a low around 17.

Sunday

Mostly sunny, with a high near 27.