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

Dayton, Cox Dayton International Airport (KDAY)

Lat: 39.91°NLon: 84.22°WElev: 1007ft.

Partly Cloudy

84°F

29°C

Humidity 51%
Wind Speed SE 13 mph
Barometer 30.26 in (1023.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 6 Aug 2:56 pm EDT
Extended Forecast for

Vandalia OH

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly before 5pm. Mostly sunny, with a high near 86. Southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 65. Light east wind.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, increasing clouds, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.

    High: 87 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. Light southeast wind.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. South wind 3 to 6 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly before 5pm. Mostly sunny, with a high near 86. Southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 65. Light east wind.
Thursday
Patchy fog before 9am. Otherwise, increasing clouds, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 68. Light southeast wind.
Friday
Sunny, with a high near 88. South wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vandalia OH
 39.88°N 84.19°W (Elev. 909 ft)
Last Update:
12:36 pm EDT Aug 6, 2025
Forecast Valid:
3pm EDT Aug 6, 2025-6pm EDT Aug 13, 2025
 
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