Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Overcast

69°F

21°C

Humidity 81%
Wind Speed NE 5 mph
Barometer 30.04 in (1017.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 21 Sep 8:54 am EDT
Extended Forecast for

Arnold MD

  • Today

    Today: Scattered showers, mainly after 4pm.  Mostly cloudy, with a high near 77. Northeast wind 8 to 10 mph.  Chance of precipitation is 30%.

    High: 77 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm.  Low around 59. Northeast wind 8 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  High near 69. Northeast wind 14 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 69 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers.  Low around 57. Northeast wind 14 to 16 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers.  Mostly cloudy, with a high near 69. Northeast wind around 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 40%.

    High: 69 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 2am.  Mostly cloudy, with a low around 56. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers after 2pm.  Mostly cloudy, with a high near 68. Chance of precipitation is 20%.

    High: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers, mainly after 2pm.  Partly sunny, with a high near 69. Chance of precipitation is 30%.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

Today
Scattered showers, mainly after 4pm. Mostly cloudy, with a high near 77. Northeast wind 8 to 10 mph. Chance of precipitation is 30%.
Tonight
Showers and possibly a thunderstorm. Low around 59. Northeast wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm. High near 69. Northeast wind 14 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers. Low around 57. Northeast wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers. Mostly cloudy, with a high near 69. Northeast wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Wednesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 20%.
Thursday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 54.
Friday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Friday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Saturday
A slight chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Arnold MD
 39.06°N 76.54°W (Elev. 56 ft)
8:26 am EDT Sep 21, 2026
9am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
 
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