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

Dover Air Force Base (KDOV)

Lat: 39.13°NLon: 75.47°WElev: 30ft.

Overcast

79°F

26°C

Humidity 57%
Wind Speed SE 9 mph
Barometer 29.76 in (1008.1 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Jun 3:55 pm EDT
Extended Forecast for

Smyrna DE

  • Tonight

    Tonight: Increasing clouds, with a low around 70. Southeast wind around 10 mph.

    Low: 70 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. Breezy, with a south wind 15 to 25 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers after 3am. Mostly cloudy, with a low around 69. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 84. West wind 5 to 10 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. West wind around 5 mph.

    Low: 63 °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 63.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 70. Southeast wind around 10 mph.
Thursday
A chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. Breezy, with a south wind 15 to 25 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers after 3am. Mostly cloudy, with a low around 69. West wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 84. West wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 63. West wind around 5 mph.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 85.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 50%.
Monday
Showers, mainly after 8am. High near 85. Chance of precipitation is 80%.
Monday Night
Showers. Low around 65. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smyrna DE
 39.32°N 75.6°W (Elev. 20 ft)
Last Update:
4:08 pm EDT Jun 17, 2026
Forecast Valid:
4pm EDT Jun 17, 2026-6pm EDT Jun 24, 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