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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Dayton, Cox Dayton International Airport (KDAY)

Lat: 39.91°NLon: 84.22°WElev: 1007ft.

Overcast

71°F

22°C

Humidity 94%
Wind Speed E 5 mph
Barometer 29.92 in (1012.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 20 Sep 5:56 am EDT
Extended Forecast for

Trotwood OH

  • Today

    Today: A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. South wind 5 to 7 mph becoming northeast in the morning. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 61. Northeast wind 10 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly between 8am and 9am. Mostly cloudy, with a high near 71. Northeast wind 11 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 71 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 56. Northeast wind 10 to 14 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 70. Northeast wind 11 to 13 mph. Chance of precipitation is 20%.

    High: 70 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.

    High: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

Detailed Forecast

Today
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. South wind 5 to 7 mph becoming northeast in the morning. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 61. Northeast wind 10 to 14 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers likely, mainly between 8am and 9am. Mostly cloudy, with a high near 71. Northeast wind 11 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 56. Northeast wind 10 to 14 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 70. Northeast wind 11 to 13 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Wednesday
A chance of showers after 2pm. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 70.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trotwood OH
 39.8°N 84.31°W (Elev. 899 ft)
Last Update:
6:26 am EDT Sep 20, 2026
Forecast Valid:
6am EDT Sep 20, 2026-6pm EDT Sep 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation