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.

A Few Clouds

78°F

26°C

Humidity 39%
Wind Speed SW 18 G 26 mph
Barometer 29.85 in (1010.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 7 Oct 3:56 pm EDT
Extended Forecast for

Vandalia OH

  • Tonight

    Tonight: Mostly clear, with a low around 54. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Light northwest wind increasing to 6 to 11 mph in the morning.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49. Northwest wind around 6 mph becoming calm after midnight.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 77. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Southeast wind 6 to 8 mph.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers. Low around 58. Chance of precipitation is 90%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 73. Chance of precipitation is 90%.

    High: 73 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 54. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 76. Light northwest wind increasing to 6 to 11 mph in the morning.
Thursday Night
Clear, with a low around 49. Northwest wind around 6 mph becoming calm after midnight.
Friday
Sunny, with a high near 77. Calm wind becoming southeast around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 56. Southeast wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Showers. Low around 58. Chance of precipitation is 90%.
Sunday
Showers, mainly before 2pm. High near 73. Chance of precipitation is 90%.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Columbus Day
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vandalia OH
 39.88°N 84.16°W (Elev. 797 ft)
Last Update:
4:00 pm EDT Oct 7, 2026
Forecast Valid:
4pm EDT Oct 7, 2026-6pm EDT Oct 14, 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