Severe Thunderstorms and Heavy Rain Across the Central US and Central Appalachians

Severe thunderstorms producing damaging winds, hail and possibly a few tornadoes are expected across parts of the central Plains and the Missouri Valley. Heavy rainfall and flash flooding is also expected in the area. Thunderstorms and heavy rain may also bring additional flooding impacts to the central Appalachians. High temperatures and critical fire weather conditions expected in the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Frederick Municipal Airport (KFDK)

Lat: 39.42°NLon: 77.37°WElev: 269ft.

Overcast

79°F

26°C

Humidity	84%
Wind Speed	SE 7 mph
Barometer	29.93 in
Dewpoint	73°F (23°C)
Visibility	7.00 mi
Heat Index	83°F (28°C)
Last update	17 Jun 6:47 pm EDT

More Information:

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

Extended Forecast for

Green Valley MD

Flood Watch June 17, 06:59pm until June 18, 12:00am

Click here for hazard details and duration

Flood Watch

Flood Watch June 17, 06:59pm until June 18, 12:00am
NOW until 12:00am Wed
Flood Watch
Tonight
Low: 69 °F
Heavy Rain
then Chance
Showers
Wednesday
High: 86 °F
Slight Chance
T-storms then
Showers
Likely
Wednesday Night
Low: 71 °F
Mostly Clear
Juneteenth
High: 89 °F
Slight Chance
Showers then
Showers
Likely
Thursday Night
Low: 64 °F
Showers
Likely then
Slight Chance
Showers
Friday
High: 83 °F
Sunny
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 88 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms likely before 2am, then a chance of showers. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday

A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. Southwest wind 3 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Mostly clear, with a low around 71. Southwest wind 3 to 5 mph.

Juneteenth

A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 89. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. West wind 6 to 9 mph. Chance of precipitation is 60%.

Friday

Sunny, with a high near 83.

Friday Night

Mostly clear, with a low around 65.

Saturday

Sunny, with a high near 88.

Saturday Night

Partly cloudy, with a low around 70.

Sunday

Mostly sunny, with a high near 93.

Sunday Night

Mostly clear, with a low around 73.