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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Bellefontaine Regional Airport (KEDJ)

Lat: 40.37°NLon: 83.82°WElev: 1122ft.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed W 6 mph
Barometer 30.30 in
Dewpoint 72°F (22°C)
Visibility 6.00 mi
Last update 17 Sep 7:15 am EDT
Extended Forecast for

De Graff OH

Flood Watch September 17, 07:33am until September 17, 02:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 17, 07:33am until September 17, 02:00pm

    NOW until 2:00pm Thu

    Flood Watch

  • Today

    High: 85 °F

    Heavy Rain

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 78. Northeast wind 6 to 8 mph.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 59. East wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 82. South wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before noon. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 85. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 78. Northeast wind 6 to 8 mph.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 59. East wind 5 to 8 mph, with gusts as high as 20 mph.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 82. South wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Monday
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
De Graff OH
 40.33°N 83.91°W (Elev. 997 ft)
Last Update:
6:44 am EDT Sep 17, 2026
Forecast Valid:
7am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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