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.

Partly Cloudy

78°F

26°C

Humidity 67%
Wind Speed SE 7 mph
Barometer 30.11 in (1018.6 mb)
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Heat Index80°F (27°C)
Last update 15 Jul 8:56 am EDT
Extended Forecast for

Vandalia OH

  • Today

    Today: Mostly sunny, with a high near 89. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 88. Southwest wind 6 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. Southwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    T-storms
    Likely then
    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 89. West wind 8 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 71. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely before 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 89. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. High near 88. Southwest wind 6 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. Southwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 89. West wind 8 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 71. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
Friday Night
Showers likely before 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Vandalia OH
 39.88°N 84.19°W (Elev. 909 ft)
Last Update:
4:00 am EDT Jul 15, 2025
Forecast Valid:
9am EDT Jul 15, 2025-6pm EDT Jul 21, 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