Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Dover Air Force Base (KDOV)

Lat: 39.13°NLon: 75.47°WElev: 30ft.

A Few Clouds

78°F

26°C

Humidity 37%
Wind Speed W 3 mph
Barometer 29.83 in (1010.5 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Jun 9:55 pm EDT
Extended Forecast for

4 Miles ESE Hartly DE

  • Tonight

    Tonight: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 66. Northwest wind around 5 mph becoming calm.

    Low: 66 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall.  High near 90. Southeast wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    Slight Chance
    Showers then
    Heavy Rain

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 70. South wind 5 to 10 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    Heavy Rain

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 64. Calm wind.
Sunday
Sunny, with a high near 86. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 66. Northwest wind around 5 mph becoming calm.
Monday
A slight chance of showers, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 90. Southeast wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 70. South wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
A chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Friday Night
A chance of thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Hartly DE
 39.17°N 75.65°W (Elev. 46 ft)
9:47 pm EDT Jun 20, 2026
10pm EDT Jun 20, 2026-6pm EDT Jun 27, 2026
 
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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