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

Hazardous Weather Conditions

Current conditions at

Dayton, Cox Dayton International Airport (KDAY)

Lat: 39.91°NLon: 84.22°WElev: 1007ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed SW 8 mph
Barometer 30.03 in (1015.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 3 Sep 1:56 am EDT
Extended Forecast for

Trotwood OH

Heat Advisory September 3, 02:20am until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 02:20am until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Heat index values as high as 103. West wind 6 to 9 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Light west wind.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms before noon, then a slight chance of thunderstorms after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 102. West wind 5 to 9 mph. Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Southwest wind around 5 mph.
Thursday
Sunny, with a high near 94. Heat index values as high as 103. West wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 73. Light west wind.
Friday
A slight chance of showers and thunderstorms before noon, then a slight chance of thunderstorms after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 102. West wind 5 to 9 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 60%.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 60.
Labor Day
Sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trotwood OH
 39.8°N 84.31°W (Elev. 899 ft)
Last Update:
1:54 am EDT Sep 3, 2026
Forecast Valid:
2am EDT Sep 3, 2026-6pm EDT Sep 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation