National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Current Conditions

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Rockville MD

7 Day Forecast

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 31 °F

Sunday

Slight Chance Rain Chance for Measurable Precipitation 20%

Slight Chc
Rain

High: 55 °F

Sunday
Night

Rain Chance for Measurable Precipitation 100%

Rain

Low: 49 °F

Monday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 71 °F

Monday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 44 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 51 °F

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 34 °F

Wednesday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 38 °F

Wednesday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 31 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 31. South wind 5 to 7 mph.
  • Sunday A slight chance of rain after 4pm. Partly sunny, with a high near 55. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
  • Sunday Night Rain, mainly after 7pm. Low around 49. Southeast wind 7 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
  • Monday A chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 71. South wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
  • Monday Night A slight chance of showers before 1am. Partly cloudy, with a low around 44. Southwest wind 8 to 11 mph becoming northwest after midnight. Chance of precipitation is 20%.
  • Tuesday Mostly sunny, with a high near 51.
  • Tuesday Night Mostly cloudy, with a low around 34.
  • Wednesday A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
  • Wednesday Night A chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
  • Thanksgiving Day Mostly sunny, with a high near 45.
  • Thursday Night Partly cloudy, with a low around 32.
  • Friday Mostly sunny, with a high near 40.
  • Friday Night Mostly clear, with a low around 26.
  • Saturday Sunny, with a high near 37.