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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Delaware Municipal Airport (KDLZ)

Lat: 40.28°NLon: 83.11°WElev: 945ft.

Fair

61°F

16°C

Humidity 94%
Wind Speed S 7 mph
Barometer 29.72 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Jun 3:15 am EDT
Extended Forecast for

Delaware OH

  • Overnight

    Overnight: Mostly clear, with a low around 57. Southwest wind around 7 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 80. Southwest wind 7 to 11 mph.

    High: 80 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms, mainly before 4am. Some of the storms could produce heavy rainfall. Low around 67. Breezy, with a south wind 18 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Heavy Rain
    and Breezy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 78. West wind 16 to 18 mph, with gusts as high as 34 mph.

    High: 78 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 57. Southwest wind around 7 mph.
Wednesday
Increasing clouds, with a high near 80. Southwest wind 7 to 11 mph.
Wednesday Night
Showers and thunderstorms, mainly before 4am. Some of the storms could produce heavy rainfall. Low around 67. Breezy, with a south wind 18 to 23 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 78. West wind 16 to 18 mph, with gusts as high as 34 mph.
Thursday Night
Mostly clear, with a low around 57. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Juneteenth
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Monday
Showers and thunderstorms likely. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Delaware OH
 40.29°N 83.08°W (Elev. 899 ft)
Last Update:
3:30 am EDT Jun 17, 2026
Forecast Valid:
3am EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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