Vandalia, OH Weather & Growing Conditions
Today
66°F
Rain
Rain and a slight chance of thunderstorms. Cloudy, with a high near 66. South wind 15 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Rain | 15 to 20 mph S | 97% |
| Tonight | 50°F | Chance Light Rain then Mostly Cloudy | 7 to 14 mph SW | 50% |
| Thursday | 63°F | Mostly Sunny | 7 to 15 mph SW | 0% |
| Thursday Night | 45°F | Mostly Cloudy | 3 to 9 mph SW | 5% |
| Friday | 57°F | Chance Light Rain | 3 to 12 mph W | 36% |
| Friday Night | 38°F | Chance Light Rain then Mostly Cloudy | 7 to 12 mph NW | 34% |
| Saturday | 54°F | Partly Sunny | 10 mph NW | 3% |
| Saturday Night | 34°F | Partly Cloudy | 3 to 7 mph NW | 3% |
| Sunday | 57°F | Sunny | 3 to 12 mph W | 4% |
| Sunday Night | 34°F | Mostly Clear | 5 to 10 mph W | 4% |
| Monday | 60°F | Sunny | 5 to 10 mph W | 2% |
| Monday Night | 38°F | Mostly Clear | 8 mph SW | 2% |
| Tuesday | 65°F | Sunny | 7 to 10 mph W | 1% |
| Tuesday Night | 37°F | Mostly Clear | 2 to 7 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Vandalia, OH
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
194 days
Hardiness zone
6b
Explore more for Vandalia, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Dayton Intl Ap, Oh (4.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.