Dangerously Excessive Heat and Humidity Continues from the Midwest and Eastward

Oppressive heat and humidity will continue through Saturday from the Midwest to the East Coast. The Midwest will get a slight reprieve on Sunday as a cold front moves through the area, while excessive heat continues in the East. In addition, strong to severe storms will bring potential for damaging winds, hail, and heavy rain on Saturday. Read More >

Hazardous Weather Conditions

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Current conditions at

Baltimore, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

83°F

28°C

Humidity	67%
Wind Speed	NA
Barometer	29.93 in (1013.5 mb)
Dewpoint	71°F (22°C)
Visibility	NA
Heat Index	88°F (31°C)
Last update	20 Jul 5:54 am EDT

More Information:

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

Extended Forecast for

Riderwood MD

Excessive Heat Watch July 21, 11:00am until July 21, 09:00pm

Excessive Heat Warning July 20, 11:00am until July 20, 09:00pm

Click here for hazard details and duration

Excessive Heat Watch

Excessive Heat Warning

Today

Mostly Sunny
then Slight
Chance
T-storms
High: 98 °F
Tonight

Chance
T-storms then
Partly Cloudy
Low: 81 °F
Sunday

Chance
T-storms
High: 98 °F
Sunday
Night

Chance
T-storms
Low: 77 °F
Monday

Heavy Rain
High: 88 °F
Monday
Night

Heavy Rain
Low: 68 °F
Tuesday

Showers
Likely
High: 80 °F
Tuesday
Night

Partly Cloudy
Low: 64 °F
Wednesday

Mostly Sunny
High: 82 °F

Detailed Forecast

Today

A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 114. West wind 3 to 7 mph. Chance of precipitation is 20%.

Tonight

A chance of showers and thunderstorms, mainly between 8pm and 11pm. Partly cloudy, with a low around 81. West wind 3 to 6 mph. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 109. West wind around 7 mph. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 40%.

Monday

Showers likely and possibly a thunderstorm, then showers and thunderstorms after noon. Some of the storms could produce heavy rain. High near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 90%.

Monday Night

Showers and thunderstorms likely, mainly before midnight. Some of the storms could produce heavy rain. Cloudy, with a low around 68. Chance of precipitation is 70%.

Tuesday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.

Tuesday Night

Partly cloudy, with a low around 64.

Wednesday

Mostly sunny, with a high near 82.

Wednesday Night

Partly cloudy, with a low around 64.

Thursday

Sunny, with a high near 84.

Thursday Night

Mostly clear, with a low around 66.