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.

A Few Clouds

78°F

26°C

Humidity 43%
Wind Speed NW 16 G 25 mph
Barometer 29.91 in (1012.3 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Jun 6:56 pm EDT
Extended Forecast for

Vandalia OH

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind 6 to 11 mph becoming light northwest after midnight.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.

    High: 80 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Low around 64. East wind 9 to 13 mph becoming south after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 64 °F

    Showers
    Likely then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 78. Southwest wind around 14 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 58. North wind 6 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 57. West wind 6 to 11 mph becoming light northwest after midnight.
Sunday
Partly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Showers and thunderstorms, mainly before 4am, then showers likely and possibly a thunderstorm after 5am. Low around 64. East wind 9 to 13 mph becoming south after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers and possibly a thunderstorm. High near 78. Southwest wind around 14 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 58. North wind 6 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 61.
Saturday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vandalia OH
 39.88°N 84.16°W (Elev. 797 ft)
Last Update:
7:03 pm EDT Jun 20, 2026
Forecast Valid:
7pm EDT Jun 20, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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