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

Hazardous Weather Conditions

Current conditions at

Defiance, Defiance Memorial Airport (KDFI)

Lat: 41.34°NLon: 84.43°WElev: 705ft.

Mostly Cloudy

87°F

31°C

Humidity 72%
Wind Speed S 3 mph
Barometer 30.00 in (1015.3 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 1 Sep 5:53 pm EDT
Extended Forecast for

Bryan OH

Heat Advisory September 1, 06:23pm until September 2, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 06:23pm until September 2, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 93. Heat index values as high as 103. Southwest wind 5 to 10 mph.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. Southwest wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 92. Heat index values as high as 99. West wind 5 to 10 mph.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 8pm. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 93. Heat index values as high as 103. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 74. Southwest wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 92. Heat index values as high as 99. West wind 5 to 10 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 8pm. Partly cloudy, with a low around 71. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 67.
Saturday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Saturday Night
A slight chance of thunderstorms before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 10%.
Sunday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
Sunday Night
A slight chance of thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 10%.
Labor Day
A 20 percent chance of showers. Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bryan OH
 41.49°N 84.55°W (Elev. 791 ft)
Last Update:
3:46 pm EDT Sep 1, 2026
Forecast Valid:
6pm EDT Sep 1, 2026-6pm EDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation