Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Mostly Cloudy

71°F

22°C

Humidity	100%
Wind Speed	N 3 mph
Barometer	30.09 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	31 Aug 5:35 am EDT

More Information:

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

Extended Forecast for

Conowingo MD

Overnight
Low: 69 °F
Slight Chance
Showers
Monday
High: 84 °F
Slight Chance
Showers then
Slight Chance
T-storms
Monday Night
Low: 71 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 92 °F
Sunny then
Scattered
T-storms
Tuesday Night
Low: 72 °F
Scattered
T-storms then
Slight Chance
Showers
Wednesday
High: 87 °F
Chance
Showers
Wednesday Night
Low: 72 °F
Chance
Showers
Thursday
High: 93 °F
Mostly Sunny
then Chance
T-storms
Thursday Night
Low: 69 °F
Chance
T-storms then
Chance
Showers

Detailed Forecast

Overnight

A slight chance of showers. Mostly cloudy, with a low around 69. Northeast wind around 5 mph. Chance of precipitation is 20%.

Monday

A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 84. Northeast wind 3 to 5 mph. Chance of precipitation is 20%.

Monday Night

Isolated showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Increasing clouds, with a low around 71. Light southeast wind. Chance of precipitation is 20%.

Tuesday

Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 101. West wind 3 to 7 mph. Chance of precipitation is 50%.

Tuesday Night

Scattered showers and thunderstorms before 11pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 50%.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 40%.

Thursday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93. Chance of precipitation is 40%.

Thursday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.

Friday

A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 63.

Saturday

A slight chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 20%.

Saturday Night

Partly cloudy, with a low around 59.

Sunday

Sunny, with a high near 80.