Vandalia, OH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vandalia, a city in Montgomery County, Ohio.
Tonight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. East wind 6 to 9 mph.
7-day forecast for Vandalia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Partly Cloudy | 6 to 9 mph E | 2% |
| Saturday | 81°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph SE | 50% |
| Saturday Night | 68°F | Showers And Thunderstorms Likely | 7 mph S | 72% |
| Sunday | 82°F | Showers And Thunderstorms Likely | 6 to 9 mph W | 56% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 10 to 14 mph NE | 56% |
| Monday | 73°F | Showers And Thunderstorms Likely | 10 to 14 mph NE | 55% |
| Monday Night | 58°F | Chance Showers And Thunderstorms | 12 to 15 mph NE | 47% |
| Tuesday | 72°F | Chance Showers And Thunderstorms | 14 mph NE | 39% |
| Tuesday Night | 58°F | Chance Showers And Thunderstorms | 9 to 14 mph NE | 40% |
| Wednesday | 71°F | Chance Rain Showers | 10 mph NE | 31% |
| Wednesday Night | 57°F | Slight Chance Rain Showers | 8 to 12 mph N | 18% |
| Thursday | 72°F | Partly Sunny | 10 mph N | 12% |
| Thursday Night | 56°F | Mostly Cloudy | 7 to 10 mph N | 12% |
| Friday | 72°F | Partly Sunny | 7 to 10 mph N | 7% |
Forecast source: National Weather Service (api.weather.gov) for Vandalia (39.879, -84.192). Updated through the day.
Growing snapshot for Vandalia
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
194 days
Hardiness zone
6b
More local growing data for Vandalia: nearby ZIP 45377 weather · frost dates · planting calendar · Ohio frost dates
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Climate data from the nearest NOAA station, Dayton Intl Ap, Oh (0.1 mi from Vandalia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.