National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Camp David (KRSP)

Lat: 39.65°NLon: 77.47°WElev: 1841ft.

Fair

69°F

21°C

Humidity 70%
Wind Speed Vrbl 5 mph
Barometer 29.84 in (1010.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Jun 10:54 am EDT
Extended Forecast for

Boonsboro MD

  • Today

    Today: Sunny, with a high near 86. Southwest wind 6 to 9 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 69. Light south wind becoming southeast 8 to 13 mph after midnight. Winds could gust as high as 23 mph.

    Low: 69 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly between 10am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 90. Breezy, with a south wind 15 to 21 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%.

    High: 90 °F

    Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Mostly clear during the early evening, then becoming mostly cloudy, with a low around 66. West wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. West wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Southwest wind 6 to 9 mph.
Tonight
Increasing clouds, with a low around 69. Light south wind becoming southeast 8 to 13 mph after midnight. Winds could gust as high as 23 mph.
Thursday
A chance of showers and thunderstorms, mainly between 10am and 1pm. Cloudy through mid morning, then gradual clearing, with a high near 90. Breezy, with a south wind 15 to 21 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of showers after 2am. Mostly clear during the early evening, then becoming mostly cloudy, with a low around 66. West wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Juneteenth
Mostly sunny, with a high near 84. West wind 10 to 16 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Boonsboro MD
 39.51°N 77.67°W (Elev. 476 ft)
Last Update:
10:53 am EDT Jun 17, 2026
Forecast Valid:
11am EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation